Java课程设计之学习成绩管理系统

package System;import java.awt.*;import java.awt.event.*;import java.io.*;import javax.swing.*;import javax.swing.table.AbstractTableModel;import javax.swing.table.DefaultTableModel;import javax.swing.table.TableCellRenderer;import javax.swing.table.TableColumn;public class main extends JFrame implements ActionListener, MouseListener{String FileName = "D:\\Jworkspace\\学生管理系统\\src\\information.txt";private JMenuBar typeMenu;private JMenu file, display, edit, help, sort,delete,alter,add,subject,search,ratio,avg,pie,histogram;private JMenuItem seeItem,addClass,addStudent,pageone,exit,alterName,alterID,                  deleteID,deleteName,deleteClass,deleteSex,deleteAge,deleteCollage,                  searchID,searchName,searchClass,searchSex,searchAge,searchCollage,                   ID, age, software,math, system, java,                  pieMath,pieSystem,pieJava,pieSoftware,                  histogramMath,histogramSystem,histogramSoftware,histogramJava,                  totalGrade,helpItem,avgMath,avgJava,avgSystem,avgSoftware;private CardLayout cardl;private TableColumn col1,col2,col3,col4,col5,col6,col7,col8,col9,col10;private JPanel card,jpSee,jpAddStudent,jpAlterByID,jpAlterByName, jpMain,jpSearch,jphelp;private JTable jtable;private JLabel jl,jlAdd1, jlAdd2, jlAdd3, jlAdd4, jlAdd5, jlAdd6, jlAdd7, jlAdd8, jlAdd9, jlAdd10, jlAdd11, jlAdd12,jlAdd13,                jlMain1, jlMain2,               jlAlter1,jlAlter2,jlAlter3,jlAlter4,jlAlter5,jlAlter6,jlAlter7;private JTextField jtAddClass, jtAddID, jtAddName, jtAddAge,jtAddCollage, jtAddSoftware, jtAddMath, jtAddSystem, jtAddJava,                   jtAlterID,jtAlterName,jtAlterAge,jtAlterClass,jtAlterCollage,jtAlterMath,jtAlterSoftware,jtAlterJava,jtAlterSystem,                   jtAlterID2,jtAlterName2,jtAlterAge2,jtAlterClass2,jtAlterCollage2,jtAlterMath2,jtAlterSoftware2,jtAlterJava2,jtAlterSystem2;private JRadioButton jr_man, jr_woman,jr_man2, jr_woman2;private ButtonGroup sexgroup,sexgroup2;private JButton jbAddSure,jbAlterSure,jbAlterSure2;private int row;private String[] collage = { "信息学院", "信电学院", "土建学院", "地质学院", "经管学院", "外国语学院", "化工学院" };private String[] class1 = { "计算机09-1", "计算机09-2", "计算机09-3", "网络", "软件", "电科" };private JScrollPane js;    private String[][] student = new String [100][25];;public main(){Container c = getContentPane();c.setLayout(null);typeMenu = new JMenuBar();// 应用程序菜单的容器setJMenuBar(typeMenu);//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++// 菜单Displayfile = new JMenu("系统");file.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(file);// 菜单Displaydisplay = new JMenu("查看");display.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(display);// 菜单Editedit = new JMenu("编辑信息");edit.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(edit);// 菜单Sortsort = new JMenu("排序");sort.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(sort);//菜单avgavg = new JMenu("平均分");avg.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(avg);// 菜单ratioratio = new JMenu("比例图");ratio.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(ratio);// 菜单Helphelp = new JMenu("Help");help.setFont(new Font("宋体", Font.PLAIN, 14));typeMenu.add(help);//HelphelpItem = new JMenuItem("Help");helpItem.setFont(new Font("宋体", Font.PLAIN, 14));help.add(helpItem);helpItem.addActionListener(this);helpItem.setActionCommand("帮助");// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//首页pageone = new JMenuItem("首页");pageone.setFont(new Font("宋体", Font.PLAIN, 14));file.add(pageone);pageone.addActionListener(this);pageone.setActionCommand("首页");file.addSeparator();//退出exit = new JMenuItem("退出");exit.setFont(new Font("宋体", Font.PLAIN, 14));file.add(exit);exit.addActionListener(this);exit.setActionCommand("退出");    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//查看seeItem  = new JMenuItem("查看");seeItem.setFont(new Font("宋体", Font.PLAIN, 14));display.add(seeItem);seeItem.addActionListener(this);seeItem.setActionCommand("查看");// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//删除delete = new JMenu("删除");delete.setMnemonic(KeyEvent.VK_D);delete.setFont(new Font("宋体", Font.PLAIN, 14));edit.add(delete);delete.addActionListener(this);delete.setActionCommand("删除");edit.addSeparator();//按学号删除deleteID = new JMenuItem("按学号删除");deleteID.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteID);deleteID.addActionListener(this);deleteID.setActionCommand("按学号删除");delete.addSeparator();//按姓名删除deleteName = new JMenuItem("按姓名删除");deleteName.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteName);deleteName.addActionListener(this);deleteName.setActionCommand("按姓名删除");delete.addSeparator();//按学院删除deleteCollage = new JMenuItem("按学院删除");deleteCollage.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteCollage);deleteCollage.addActionListener(this);deleteCollage.setActionCommand("按学院删除");delete.addSeparator();//按班级删除deleteClass = new JMenuItem("按班级删除");deleteClass.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteClass);deleteClass.addActionListener(this);deleteClass.setActionCommand("按班级删除");delete.addSeparator();//按性别删除deleteSex = new JMenuItem("按性别删除");deleteSex.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteSex);deleteSex.addActionListener(this);deleteSex.setActionCommand("按性别删除");delete.addSeparator();//按年龄删除deleteAge = new JMenuItem("按年龄删除");deleteAge.setFont(new Font("宋体", Font.PLAIN, 13));delete.add(deleteAge);deleteAge.addActionListener(this);deleteAge.setActionCommand("按年龄删除");//添加add = new JMenu("添加");add.setMnemonic(KeyEvent.VK_A);add.setFont(new Font("宋体", Font.PLAIN, 14));edit.add(add);edit.addSeparator();add.addActionListener(this);add.setActionCommand("添加");////按学号添加//addClass = new JMenuItem("添加班级");//addClass.setFont(new Font("宋体", Font.PLAIN, 13));//add.add(addClass);//addClass.addActionListener(this);//addClass.setActionCommand("添加班级");//add.addSeparator();//添加学生addStudent = new JMenuItem("添加学生");addStudent.setFont(new Font("宋体", Font.PLAIN, 13));add.add(addStudent);addStudent.addActionListener(this);addStudent.setActionCommand("添加学生");//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//修改alter = new JMenu("修改");alter.setMnemonic(KeyEvent.VK_A);alter.setFont(new Font("宋体", Font.PLAIN, 14));edit.add(alter);alter.addActionListener(this);alter.setActionCommand("修改");edit.addSeparator();//按学号修改alterID = new JMenuItem("按学号修改");alterID.setFont(new Font("宋体", Font.PLAIN, 13));alter.add(alterID);alterID.addActionListener(this);alterID.setActionCommand("按学号修改");alter.addSeparator();//按姓名修改alterName = new JMenuItem("按姓名修改");alterName.setFont(new Font("宋体", Font.PLAIN, 13));alter.add(alterName);alterName.addActionListener(this);alterName.setActionCommand("按姓名修改");//查询search = new JMenu("查询");search.setFont(new Font("宋体", Font.PLAIN, 14));edit.add(search);search.addActionListener(this);search.setActionCommand("查询");//按学号查询searchID = new JMenuItem("按学号查询");searchID.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchID);searchID.addActionListener(this);searchID.setActionCommand("按学号查询");search.addSeparator();//姓名查询searchName = new JMenuItem("按姓名查询");searchName.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchName);searchName.addActionListener(this);searchName.setActionCommand("按姓名查询");search.addSeparator();//按学院查询searchCollage = new JMenuItem("按学院查询");searchCollage.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchCollage);searchCollage.addActionListener(this);searchCollage.setActionCommand("按学院查询");search.addSeparator();//按班级查询searchClass = new JMenuItem("按班级查询");searchClass.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchClass);searchClass.addActionListener(this);searchClass.setActionCommand("按班级查询");search.addSeparator();//按性别查询searchSex = new JMenuItem("按性别查询");searchSex.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchSex);searchSex.addActionListener(this);searchSex.setActionCommand("按性别查询");search.addSeparator();//按年龄查询searchAge = new JMenuItem("按年龄查询");searchAge.setFont(new Font("宋体", Font.PLAIN, 13));search.add(searchAge);searchAge.addActionListener(this);searchAge.setActionCommand("按年龄查询");// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//排序//按学号排序ID = new JMenuItem("按学号排序");ID.setFont(new Font("宋体", Font.PLAIN, 14));sort.add(ID);sort.addSeparator();ID.addActionListener(this);ID.setActionCommand("按学号排序");//按年龄排序age = new JMenuItem("按年龄排序");age.setFont(new Font("宋体", Font.PLAIN, 14));sort.add(age);sort.addSeparator();age.addActionListener(this);age.setActionCommand("按年龄排序");//按总成绩排序totalGrade  = new JMenuItem("按总成绩排序");totalGrade.setFont(new Font("宋体", Font.PLAIN, 14));sort.add(totalGrade);sort.addSeparator();totalGrade.addActionListener(this);totalGrade.setActionCommand("按总成绩排序");//按单科成绩排序subject = new JMenu("按单科成绩排序");subject.setFont(new Font("宋体", Font.PLAIN, 14));sort.add(subject);//按数学排序math = new JMenuItem("按数学排序");math.setFont(new Font("宋体", Font.PLAIN, 14));subject.add(math);math.addActionListener(this);math.setActionCommand("按数学排序");subject.addSeparator();//按Java排序java = new JMenuItem("按Java排序");java.setFont(new Font("宋体", Font.PLAIN, 14));subject.add(java);java.addActionListener(this);java.setActionCommand("按Java排序");subject.addSeparator();//按软件工程排序software = new JMenuItem("按软件工程排序");software.setFont(new Font("宋体", Font.PLAIN, 14));subject.add(software);software.addActionListener(this);software.setActionCommand("按软件工程排序");subject.addSeparator();//按操作系统排序system = new JMenuItem("按操作系统排序");system.setFont(new Font("宋体", Font.PLAIN, 14));subject.add(system);system.addActionListener(this);system.setActionCommand("按操作系统排序");// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//课程平均分//求数学平均分avgMath = new JMenuItem("求数学平均分");avgMath.setFont(new Font("宋体", Font.PLAIN, 14));avg.add(avgMath);avgMath.addActionListener(this);avgMath.setActionCommand("求数学平均分");avg.addSeparator();//求Java平均分avgJava = new JMenuItem("求Java平均分");avgJava.setFont(new Font("宋体", Font.PLAIN, 14));avg.add(avgJava);avgJava.addActionListener(this);avgJava.setActionCommand("求Java平均分");avg.addSeparator();//求软件工程平均分avgSoftware = new JMenuItem("求软件工程平均分");avgSoftware.setFont(new Font("宋体", Font.PLAIN, 14));avg.add(avgSoftware);avgSoftware.addActionListener(this);avgSoftware.setActionCommand("求软件工程平均分");avg.addSeparator();//求操作系统平均分avgSystem = new JMenuItem("求操作系统平均分");avgSystem.setFont(new Font("宋体", Font.PLAIN, 14));avg.add(avgSystem);avgSystem.addActionListener(this);avgSystem.setActionCommand("求操作系统平均分");//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//饼形图pie = new JMenu("饼形图");pie.setFont(new Font("宋体", Font.PLAIN, 14));ratio.add(pie);pie.addActionListener(this);pie.setActionCommand("饼形图");ratio.addSeparator();//Math柱形图pieMath = new JMenuItem("Math");pieMath.setFont(new Font("宋体", Font.PLAIN, 14));pie.add(pieMath);pieMath.addActionListener(this);pieMath.setActionCommand("Math饼形图");pie.addSeparator();//Java柱形图pieJava = new JMenuItem("Java");pieJava.setFont(new Font("宋体", Font.PLAIN, 14));pie.add(pieJava);pieJava.addActionListener(this);pieJava.setActionCommand("Java饼形图");pie.addSeparator();//System柱形图pieSystem = new JMenuItem("System");pieSystem.setFont(new Font("宋体", Font.PLAIN, 14));pie.add(pieSystem);pieSystem.addActionListener(this);pieSystem.setActionCommand("System饼形图");pie.addSeparator();//Software柱形图pieSoftware = new JMenuItem("Software");pieSoftware.setFont(new Font("宋体", Font.PLAIN, 14));pie.add(pieSoftware);pieSoftware.addActionListener(this);pieSoftware.setActionCommand("Software饼形图");//柱形图histogram = new JMenu("柱形图");histogram.setFont(new Font("宋体", Font.PLAIN, 14));ratio.add(histogram);histogram.addActionListener(this);histogram.setActionCommand("柱形图");//Math柱形图histogramMath = new JMenuItem("Math");histogramMath.setFont(new Font("宋体", Font.PLAIN, 14));histogram.add(histogramMath);histogramMath.addActionListener(this);histogramMath.setActionCommand("Math柱形图");histogram.addSeparator();//Java柱形图histogramJava = new JMenuItem("Java");histogramJava.setFont(new Font("宋体", Font.PLAIN, 14));histogram.add(histogramJava);histogramJava.addActionListener(this);histogramJava.setActionCommand("Java柱形图");histogram.addSeparator();//System柱形图histogramSystem = new JMenuItem("System");histogramSystem.setFont(new Font("宋体", Font.PLAIN, 14));histogram.add(histogramSystem);histogramSystem.addActionListener(this);histogramSystem.setActionCommand("System柱形图");histogram.addSeparator();//Software柱形图histogramSoftware = new JMenuItem("Software");histogramSoftware.setFont(new Font("宋体", Font.PLAIN, 14));histogram.add(histogramSoftware);histogramSoftware.addActionListener(this);histogramSoftware.setActionCommand("Software柱形图");//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++cardl = new CardLayout();card = new JPanel();card.setBounds(0, 0, 650, 400);card.setOpaque(false);card.setLayout(cardl);jpSearch = new JPanel();jpMain = new JPanel();jpAddStudent = new JPanel();jpAlterByID = new JPanel();jpAlterByName = new JPanel();jpSee = new JPanel();jphelp = new JPanel();card.add("首页", jpMain);card.add("按班级查询",jpSearch);card.add("添加学生", jpAddStudent);card.add("按姓名修改", jpAlterByName);card.add("按学号修改", jpAlterByID);card.add("查看", jpSee);card.add("帮助", jphelp);c.add(card);// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//首页jpMain.setLayout(null);jlMain1 = new JLabel();jlMain1.setText("欢迎来到学生成绩管理系统");jlMain1.setBounds(150, 100, 300, 40);jlMain1.setFont(new Font("宋体", Font.PLAIN, 25));jlMain1.setForeground(Color.black);jpMain.add(jlMain1);jlMain2 = new JLabel();jlMain2.setText("管理员：xiaosi");jlMain2.setBounds(230, 150, 300, 40);jlMain2.setFont(new Font("宋体", Font.PLAIN, 20));jlMain2.setForeground(Color.black);jpMain.add(jlMain2);//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//帮助jphelp.setLayout(null);// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++jpAlterByID.setLayout(null);//按学号修改jlAlter1 = new JLabel();jlAlter1.setText("按学号修改");jlAlter1.setBounds(200, 20, 170, 20);jlAlter1.setFont(new Font("宋体", Font.PLAIN, 20));jpAlterByID.add(jlAlter1);jlAlter2 = new JLabel();jlAlter2.setBounds(20, 70, 200, 20);jlAlter2.setText("*请输入要修改学生的学号：");jlAlter2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter2);//要修改学生的学号jtAlterID = new JTextField();jtAlterID.setBounds(220, 70, 150, 20);jtAlterID.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterID);//修改基本信息jlAlter2 = new JLabel();jlAlter2.setBounds(20, 100, 170, 20);jlAlter2.setText("*修改基本信息*");jlAlter2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter2);// 修改姓名jlAlter3 = new JLabel();jlAlter3.setBounds(80, 140, 50, 20);jlAlter3.setText("姓名：");jlAlter3.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter3);jtAlterName = new JTextField();jtAlterName.setBounds(130, 140, 150, 20);jtAlterName.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterName);// 修改年龄jlAlter4 = new JLabel();jlAlter4.setBounds(320, 140, 50, 20);jlAlter4.setText("年龄：");jlAlter4.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter4);jtAlterAge = new JTextField();jtAlterAge.setBounds(370, 140, 150, 20);jtAlterAge.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterAge);// 修改学院jlAlter6 = new JLabel();jlAlter6.setBounds(80, 170, 50, 20);jlAlter6.setText("学院:");jlAlter6.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter6);jtAlterCollage = new JTextField();jtAlterCollage.setBounds(130, 170, 150, 20);jtAlterCollage.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterCollage);//修改班级jlAlter7 = new JLabel();jlAlter7.setBounds(320, 170, 50, 20);jlAlter7.setText("班级:");jlAlter7.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter7);jtAlterClass = new JTextField();jtAlterClass.setBounds(370, 170, 150, 20);jtAlterClass.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterClass);// 修改性别jlAlter5 = new JLabel();jlAlter5.setBounds(80, 210, 50, 20);jlAlter5.setText("性别：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);jr_man = new JRadioButton();jr_man.setText("男");jr_man.setFont(new Font("宋体", Font.PLAIN, 16));jr_man.setSelected(true);jr_man.setBounds(130, 210, 50, 20);jr_woman = new JRadioButton();jr_woman.setText("女");jr_woman.setFont(new Font("宋体", Font.PLAIN, 16));jr_woman.setBounds(180, 210, 50, 20);sexgroup = new ButtonGroup();sexgroup.add(jr_man);sexgroup.add(jr_woman);jpAlterByID.add(jr_man);jpAlterByID.add(jr_woman);// 修改成绩jlAlter5 = new JLabel();jlAlter5.setBounds(20, 240, 200, 20);jlAlter5.setText("*修改单科成绩*");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);// 修改数学jlAlter5 = new JLabel();jlAlter5.setBounds(80, 270, 50, 20);jlAlter5.setText("数学：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);jtAlterMath = new JTextField();jtAlterMath.setBounds(130, 270, 150, 20);jtAlterMath.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterMath);//修改软件工程jlAlter5 = new JLabel();jlAlter5.setBounds(320, 270, 80, 20);jlAlter5.setText("软件工程：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);jtAlterSoftware = new JTextField();jtAlterSoftware.setBounds(400, 270, 150, 20);jtAlterSoftware.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterSoftware);// 修改JavajlAlter5 = new JLabel();jlAlter5.setBounds(80, 300, 50, 20);jlAlter5.setText("Java：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);jtAlterJava = new JTextField();jtAlterJava.setBounds(130, 300, 150, 20);jtAlterJava.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterJava);// 修改操作系统jlAlter5 = new JLabel();jlAlter5.setBounds(320, 300, 80, 20);jlAlter5.setText("操作系统：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jlAlter5);jtAlterSystem = new JTextField();jtAlterSystem.setBounds(400, 300, 150, 20);jtAlterSystem.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByID.add(jtAlterSystem);jbAlterSure = new JButton();jbAlterSure.setBounds(500, 325, 50, 20);jbAlterSure.setIcon(new ImageIcon("pic//tijiao.gif"));jbAlterSure.addActionListener(this);jbAlterSure.setActionCommand("按学号修改提交");jpAlterByID.add(jbAlterSure);// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++jpAlterByName.setLayout(null);//按姓名修改jlAlter1 = new JLabel();jlAlter1.setText("按姓名修改");jlAlter1.setBounds(230, 20, 170, 20);jlAlter1.setFont(new Font("宋体", Font.PLAIN, 20));jpAlterByName.add(jlAlter1);jlAlter2 = new JLabel();jlAlter2.setBounds(20, 70, 200, 20);jlAlter2.setText("*请输入要修改学生的姓名：");jlAlter2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter2);//要修改学生的姓名jtAlterName2 = new JTextField();jtAlterName2.setBounds(220, 70, 150, 20);jtAlterName2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterName2);//修改基本信息jlAlter2 = new JLabel();jlAlter2.setBounds(20, 100, 170, 20);jlAlter2.setText("*修改基本信息*");jlAlter2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter2);// 修改学号jlAlter3 = new JLabel();jlAlter3.setBounds(80, 140, 50, 20);jlAlter3.setText("学号：");jlAlter3.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter3);jtAlterID2 = new JTextField();jtAlterID2.setBounds(130, 140, 150, 20);jtAlterID2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterID2);// 修改年龄jlAlter4 = new JLabel();jlAlter4.setBounds(320, 140, 50, 20);jlAlter4.setText("年龄：");jlAlter4.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter4);jtAlterAge2 = new JTextField();jtAlterAge2.setBounds(370, 140, 150, 20);jtAlterAge2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterAge2);// 修改学院jlAlter6 = new JLabel();jlAlter6.setBounds(80, 170, 50, 20);jlAlter6.setText("学院:");jlAlter6.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter6);jtAlterCollage2 = new JTextField();jtAlterCollage2.setBounds(130, 170, 150, 20);jtAlterCollage2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterCollage2);//修改班级jlAlter7 = new JLabel();jlAlter7.setBounds(320, 170, 50, 20);jlAlter7.setText("班级:");jlAlter7.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter7);jtAlterClass2 = new JTextField();jtAlterClass2.setBounds(370, 170, 150, 20);jtAlterClass2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterClass2);// 修改性别jlAlter5 = new JLabel();jlAlter5.setBounds(80, 210, 50, 20);jlAlter5.setText("性别：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);jr_man2 = new JRadioButton();jr_man2.setText("男");jr_man2.setFont(new Font("宋体", Font.PLAIN, 16));jr_man2.setSelected(true);jr_man2.setBounds(130, 210, 50, 20);jr_woman2 = new JRadioButton();jr_woman2.setText("女");jr_woman2.setFont(new Font("宋体", Font.PLAIN, 16));jr_woman2.setBounds(180, 210, 50, 20);sexgroup2 = new ButtonGroup();sexgroup2.add(jr_man2);sexgroup2.add(jr_woman2);jpAlterByName.add(jr_man2);jpAlterByName.add(jr_woman2);// 修改成绩jlAlter5 = new JLabel();jlAlter5.setBounds(20, 240, 200, 20);jlAlter5.setText("*修改单科成绩*");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);// 修改数学jlAlter5 = new JLabel();jlAlter5.setBounds(80, 270, 50, 20);jlAlter5.setText("数学：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);jtAlterMath2 = new JTextField();jtAlterMath2.setBounds(130, 270, 150, 20);jtAlterMath2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterMath2);//修改软件工程jlAlter5 = new JLabel();jlAlter5.setBounds(320, 270, 80, 20);jlAlter5.setText("软件工程：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);jtAlterSoftware2 = new JTextField();jtAlterSoftware2.setBounds(400, 270, 150, 20);jtAlterSoftware2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterSoftware2);// 修改JavajlAlter5 = new JLabel();jlAlter5.setBounds(80, 300, 50, 20);jlAlter5.setText("Java：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);jtAlterJava2 = new JTextField();jtAlterJava2.setBounds(130, 300, 150, 20);jtAlterJava2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterJava2);// 修改操作系统jlAlter5 = new JLabel();jlAlter5.setBounds(320, 300, 80, 20);jlAlter5.setText("操作系统：");jlAlter5.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jlAlter5);jtAlterSystem2 = new JTextField();jtAlterSystem2.setBounds(400, 300, 150, 20);jtAlterSystem2.setFont(new Font("宋体", Font.PLAIN, 16));jpAlterByName.add(jtAlterSystem2);jbAlterSure2 = new JButton();jbAlterSure2.setBounds(500, 325, 50, 20);jbAlterSure2.setIcon(new ImageIcon("pic//tijiao.gif"));jbAlterSure2.addActionListener(this);jbAlterSure2.setActionCommand("按姓名修改提交");jpAlterByName.add(jbAlterSure2);//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//添加jpAddStudent.setLayout(null);jlAdd1 = new JLabel();jlAdd1.setBounds(200, 20, 200, 20);jlAdd1.setText("添加学生基本信息");jlAdd1.setFont(new Font("宋体", Font.PLAIN, 20));jpAddStudent.add(jlAdd1);// 添加基本信息jlAdd2 = new JLabel();jlAdd2.setBounds(20, 60, 100, 20);jlAdd2.setText("*基本信息：");jlAdd2.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd2);//添加学号jlAdd3 = new JLabel();jlAdd3.setBounds(80, 90, 50, 20);jlAdd3.setText("学号：");jlAdd3.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd3);jtAddID = new JTextField();jtAddID.setBounds(130, 90, 150, 20);jtAddID.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddID);// 添加姓名jlAdd4 = new JLabel();jlAdd4.setBounds(320, 90, 50, 20);jlAdd4.setText("姓名：");jlAdd4.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd4);jtAddName = new JTextField();jtAddName.setBounds(370, 90, 150, 20);jtAddName.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddName);// 添加年龄jlAdd5 = new JLabel();jlAdd5.setBounds(80, 130, 50, 20);jlAdd5.setText("年龄：");jlAdd5.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd5);jtAddAge = new JTextField();jtAddAge.setBounds(130, 130, 150, 20);jtAddAge.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddAge);// 添加学院jlAdd12 = new JLabel();jlAdd12.setBounds(320, 130, 50, 20);jlAdd12.setText("学院:");jlAdd12.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd12);jtAddCollage = new JTextField();jtAddCollage.setBounds(370, 130, 150, 20);jtAddCollage.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddCollage);// 添加性别jlAdd6 = new JLabel();jlAdd6.setBounds(80, 170, 50, 20);jlAdd6.setText("性别：");jlAdd6.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd6);jr_man = new JRadioButton();jr_man.setText("男");jr_man.setFont(new Font("宋体", Font.PLAIN, 16));jr_man.setSelected(true);jr_man.setBounds(130, 170, 50, 20);jr_woman = new JRadioButton();jr_woman.setText("女");jr_woman.setFont(new Font("宋体", Font.PLAIN, 16));jr_woman.setBounds(180, 170, 50, 20);sexgroup = new ButtonGroup();sexgroup.add(jr_man);sexgroup.add(jr_woman);jpAddStudent.add(jr_man);jpAddStudent.add(jr_woman);//添加班级jlAdd13 = new JLabel();jlAdd13.setBounds(320, 170, 50, 20);jlAdd13.setText("班级:");jlAdd13.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd13);jtAddClass = new JTextField();jtAddClass.setBounds(370, 170, 150, 20);jtAddClass.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddClass);// 添加成绩jlAdd7 = new JLabel();jlAdd7.setBounds(20, 210, 100, 20);jlAdd7.setText("*单科成绩：");jlAdd7.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd7);// 添加数学jlAdd8 = new JLabel();jlAdd8.setBounds(80, 240, 50, 20);jlAdd8.setText("数学：");jlAdd8.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd8);jtAddMath = new JTextField();jtAddMath.setBounds(130, 240, 150, 20);jtAddMath.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddMath);// 添加软件工程jlAdd9 = new JLabel();jlAdd9.setBounds(320, 240, 80, 20);jlAdd9.setText("软件工程：");jlAdd9.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd9);jtAddSoftware = new JTextField();jtAddSoftware.setBounds(400, 240, 150, 20);jtAddSoftware.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddSoftware);// 添加JavajlAdd10 = new JLabel();jlAdd10.setBounds(80, 280, 50, 20);jlAdd10.setText("Java：");jlAdd10.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd10);jtAddJava = new JTextField();jtAddJava.setBounds(130, 280, 150, 20);jtAddJava.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddJava);// 添加操作系统jlAdd11 = new JLabel();jlAdd11.setBounds(320, 280, 80, 20);jlAdd11.setText("操作系统：");jlAdd11.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jlAdd11);jtAddSystem = new JTextField();jtAddSystem.setBounds(400, 280, 150, 20);jtAddSystem.setFont(new Font("宋体", Font.PLAIN, 16));jpAddStudent.add(jtAddSystem);jbAddSure = new JButton();jbAddSure.setBounds(500, 320, 50, 20);jbAddSure.setIcon(new ImageIcon("pic//tijiao.gif"));jbAddSure.addActionListener(this);jbAddSure.setActionCommand("添加提交");jpAddStudent.add(jbAddSure);// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//查看jl = new JLabel();jl.setBounds(110, 0, 300, 20);jl.setText("信息表");jl.setForeground(Color.gray);jl.setFont(new Font("宋体", Font.PLAIN, 16));jpSee.add(jl);MyTableModel Mytable = new MyTableModel();jtable = new JTable(Mytable);jtable.setShowGrid(true);//设置列宽col1 = jtable.getColumnModel().getColumn(0);col1.setPreferredWidth(145);col2 = jtable.getColumnModel().getColumn(1);col2.setPreferredWidth(80);col3 = jtable.getColumnModel().getColumn(2);col3.setPreferredWidth(50);col4 = jtable.getColumnModel().getColumn(3);col4.setPreferredWidth(50);col5 = jtable.getColumnModel().getColumn(4);col5.setPreferredWidth(100);col6 = jtable.getColumnModel().getColumn(5);col6.setPreferredWidth(130);col7 = jtable.getColumnModel().getColumn(6);col7.setPreferredWidth(80);col8 = jtable.getColumnModel().getColumn(7);col8.setPreferredWidth(80);col9 = jtable.getColumnModel().getColumn(8);col9.setPreferredWidth(80);col10 = jtable.getColumnModel().getColumn(9);col10.setPreferredWidth(80);jtable.setPreferredScrollableViewportSize(new Dimension(610, 300));js = new JScrollPane(jtable);js.setBounds(30, 20, 590, 350);jpSee.add(js);    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++setLocation(400, 150);setResizable(false);setSize(650, 400);setVisible(true);setTitle("学生成绩管理系统");}    //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//判断学生是否存在public Boolean isEixt(String ID, String fileName){String str = null;String[][] student = new String[100][];FileReader fr;BufferedReader br;try{fr = new FileReader(fileName);br = new BufferedReader(fr);try{for (int i = 0; (str = br.readLine()) != null; i++){student[i] = str.split(" ");if (student[i][0].equals(ID)){return true;}}}catch (IOException e){e.printStackTrace();}}catch (FileNotFoundException e){e.printStackTrace();}return false;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++    //添加基本信息public void add(String information, String FileName){File file = new File(FileName);try{BufferedWriter bw;FileWriter fw;// 如果文件（班级）不存在则创建if (!file.exists()){// 创建文件（班级）file.createNewFile();}try{fw = new FileWriter(FileName, true);bw = new BufferedWriter(fw);bw.write(information);bw.newLine();bw.close();}catch (IOException ex){ex.printStackTrace();}}catch (IOException e1){e1.printStackTrace();}}    //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//查看public void SeeAll(String FileName){String str = null;for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = " ";}}try        {        FileReader fr = new FileReader(FileName);        BufferedReader br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        student[i] = str.split(" ");        }        }        catch (IOException e)        {        e.printStackTrace();        }}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//查询public int Search(String FileName,int num,String information){String str = null;String temp [][] = new String[100][12];int count = 0;int flag = 0;for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = "";}}try        {        FileReader fr = new FileReader(FileName);        BufferedReader br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        temp[i] = str.split(" ");        if(temp[i][num].equals(information))        {        student[count] = temp[i];        count ++;        flag = 1;        }        }        }        catch (IOException e)        {        e.printStackTrace();        }        return flag;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//删除public int delete(String FileName,int num,String information){FileReader fr;BufferedReader br;BufferedWriter bw;FileWriter fw;String str = null;int count = 0;int k = 0;int flag = 0;//判断该学生是否存在 0 没有 1 有String temp [][] = new String[100][12];for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = "";}}        try        {        fr = new FileReader(FileName);        br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        temp[i] = str.split(" ");        if(temp[i][num].equals(information))        {        flag = 1;        continue;        }        student[count++]=temp[i];        if(k == 0)        {        fw = new FileWriter(FileName);        k++;        }        else        {        fw = new FileWriter(FileName,true);        }        bw = new BufferedWriter(fw);        bw.write(str);         bw.newLine();         bw.close();        }        br.close();                }        catch (FileNotFoundException e)        {        e.printStackTrace();        }        catch (IOException e)        {        e.printStackTrace();        }        return flag;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//修改public int alter(int num,String information[]){FileReader fr;BufferedReader br;BufferedWriter bw;FileWriter fw;String str = null;String tempStr = null;int k =0;int flag = 0;//判断该学生是否存在 0 没有 1 有double total = 0;String temp [][] = new String[100][12];for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = " ";}}        try        {        fr = new FileReader(FileName);        br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        temp[i] = str.split(" ");        if(temp[i][num].equals(information[num]))        {System.out.print("gggggggggf");        tempStr = null;        flag = 1;        for(int j =0;j<= 9;j++)        {        if(information[j].equals(""))        {        if(j>=6)//修改单科成绩也要修改总成绩 和平均分        {        total += Double.parseDouble(temp[i][j]);        }        if(j == 0)        tempStr = temp[i][j];        else        tempStr=tempStr+" "+temp[i][j];        continue;        }        if(j>=6)        {        total += Double.parseDouble(information[j]);        }        temp[i][j] = information[j];        if(j == 0)        tempStr=temp[i][j];        else        tempStr=tempStr+" "+temp[i][j];        }        str = tempStr+" "+String.valueOf(total)+" "+String.valueOf((int)(total/4));        temp[i][10] = String.valueOf(total);temp[i][11] = String.valueOf((int)(total/4));        }        student[i]=temp[i];        if(k == 0)        {        fw = new FileWriter(FileName);        k++;        }        else        {        fw = new FileWriter(FileName,true);        }        bw = new BufferedWriter(fw);        bw.write(str);         bw.newLine();         bw.close();        }        br.close();                }        catch (FileNotFoundException e)        {        e.printStackTrace();        }        catch (IOException e)        {        e.printStackTrace();        }        return flag;}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//排序public void Sort(int num){String str = null;double d1,d2;int count = 0;for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = null;}}try        {        FileReader fr = new FileReader(FileName);        BufferedReader br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        student[i] = str.split(" ");        count++;        }        for (int j = 0;j < count;j++) {for (int i = 0;i < count-1;i++) {String[] temp;d1 = Double.parseDouble(student[i][num]);d2 = Double.parseDouble(student[i+1][num]);if(num == 3 ||num == 6||num == 7||num == 8|| num == 9||num == 10){if (d1<d2){temp = student[i];student[i] = student[i + 1];student[i + 1] = temp;}}else{if (d1>d2){temp = student[i];student[i] = student[i + 1];student[i + 1] = temp;}}}}        }        catch (IOException e)        {        e.printStackTrace();        }}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//查询平均成绩public double SearchAvg(int num){String str = null;String temp [][] = new String[100][10];double total = 0;int count = 0;for(int i =0;i<100;i++){for(int j=0;j<12;j++){student[i][j] = "";}}try        {        FileReader fr = new FileReader(FileName);        BufferedReader br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        count ++;        temp[i] = str.split(" ");        total +=Double.parseDouble(temp[i][num]);        }        }        catch (IOException e)        {        e.printStackTrace();        }        return total/count;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++public boolean Check(String str){int len = str.length();for(int i =0;i<len;i++){if(str.charAt(i)<'0'||str.charAt(i)>'9'){return false;}}return true;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//百分比public int[] percent(int num){String temp [][] = new String[100][10];String str = null;int information[] = new int [7];for(int i=0;i<6;i++){information[i] = 0;}try        {        FileReader fr = new FileReader(FileName);        BufferedReader br = new BufferedReader(fr);        for(int i =0;(str = br.readLine())!=null;i++)        {        temp[i] = str.split(" ");        information[5]++;        if(Double.parseDouble(temp[i][num])>=90)        {        information[0]++;        }        else if(Double.parseDouble(temp[i][num])>=80)        {        information[1]++;        }        else if(Double.parseDouble(temp[i][num])>=70)        {        information[2]++;        }        else if(Double.parseDouble(temp[i][num])>=60)        {        information[3]++;        }        else if(Double.parseDouble(temp[i][num])<60)        {        information[4]++;        }        }        }        catch (IOException e)        {        e.printStackTrace();        }return information;}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++public void mouseReleased(MouseEvent e){}public void mousePressed(MouseEvent e){}public void mouseEntered(MouseEvent e){}public void mouseExited(MouseEvent e){}public void mouseClicked(MouseEvent e){Point p = e.getPoint();row = jtable.rowAtPoint(p);if (e.getClickCount() == 2){}}public void actionPerformed(ActionEvent e){if (e.getActionCommand().equals("首页")){cardl.show(card, "首页");}else if (e.getActionCommand().equals("退出")){dispose();}else if (e.getActionCommand().equals("帮助")){cardl.show(card, "帮助");}else if (e.getActionCommand().equals("查看")){jtable.updateUI();SeeAll(FileName);cardl.show(card, "查看");}//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//按学号删除else if (e.getActionCommand().equals("按学号删除")){String ID=JOptionPane.showInputDialog(null,"请输入学号"); if(ID!=null){if(!ID.equals("")){jtable.updateUI();if(delete(FileName,0,ID) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该学生", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入学号！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按姓名删除else if (e.getActionCommand().equals("按姓名删除")){String Name=JOptionPane.showInputDialog(null,"请输入姓名"); if(Name!=null){if(!Name.equals("")){jtable.updateUI();if(delete(FileName,1,Name) == 0){JOptionPane.showMessageDialog(null, "对不起，该学生不在成绩管理系统中！", "提示", JOptionPane.INFORMATION_MESSAGE);}    cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入姓名！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按性别删除else if (e.getActionCommand().equals("按性别删除")){Object[] Sex = {"男","女"};String s = (String) JOptionPane.showInputDialog(this,"请选择性别\n","按性别删除", JOptionPane.QUESTION_MESSAGE, null,Sex, "男");if(!s.equals("")){jtable.updateUI();if(delete(FileName,2,s) == 0){JOptionPane.showMessageDialog(null, "对不起，在成绩管理系统中没有查找到！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}}//按年龄删除else if (e.getActionCommand().equals("按年龄删除")){String Age=JOptionPane.showInputDialog(null,"请输入年龄");if(Age!=null){if(!Age.equals("")){jtable.updateUI();if(delete(FileName,3,Age) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该年龄的学生", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入年龄！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按学院删除else if (e.getActionCommand().equals("按学院删除")){String Collage=JOptionPane.showInputDialog(null,"请输入学院");if(Collage!=null){if(!Collage.equals("")){jtable.updateUI();if(delete(FileName,4,Collage)  == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该学院的学生", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入学院！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按班级删除else if (e.getActionCommand().equals("按班级删除")){String Class=JOptionPane.showInputDialog(null,"请输入班级");if(Class!=null){if(!Class.equals("")){jtable.updateUI();if(delete(FileName,5,Class) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该班级的学生", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入班级！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("添加学生")){cardl.show(card, "添加学生");}else if (e.getActionCommand().equals("添加班级")){cardl.show(card, "添加学生");}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("按学号修改")){cardl.show(card, "按学号修改");}else if (e.getActionCommand().equals("按姓名修改")){cardl.show(card, "按姓名修改");}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//按学号查询else if (e.getActionCommand().equals("按学号查询")){String ID=JOptionPane.showInputDialog(null,"请输入学号");if(ID!=null){if(!ID.equals("")){jtable.updateUI();if(Search(FileName,0,ID) == 0){JOptionPane.showMessageDialog(null, "对不起，该学生不在成绩管理系统中！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入学号！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按姓名查询else if (e.getActionCommand().equals("按姓名查询")){String Name=JOptionPane.showInputDialog(null,"请输入姓名");if(Name!=null){if(!Name.equals("")){jtable.updateUI();if(Search(FileName,1,Name) == 0){JOptionPane.showMessageDialog(null, "对不起，该学生不在成绩管理系统中！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入姓名！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按性别查询else if (e.getActionCommand().equals("按性别查询")){Object[] Sex = {"男","女"};String s = (String) JOptionPane.showInputDialog(this,"请选择性别\n","按性别查询", JOptionPane.QUESTION_MESSAGE, null,Sex, "男");if(s!=null){jtable.updateUI();if(Search(FileName,2,s) == 0){JOptionPane.showMessageDialog(null, "对不起，在成绩管理系统中没有查找到该性别的学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}}//按年龄查询else if (e.getActionCommand().equals("按年龄查询")){String Age=JOptionPane.showInputDialog(null,"请输入年龄");if(Age!=null){if(!Age.equals("")){jtable.updateUI();if(Search(FileName,3,Age) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该年龄的学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入年龄！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按学院查询else if (e.getActionCommand().equals("按学院查询")){String Collage=JOptionPane.showInputDialog(null,"请输入学院");if(Collage!=null){if(!Collage.equals("")){jtable.updateUI();if(Search(FileName,4,Collage) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该学院的学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入学院！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//按班级查询else if (e.getActionCommand().equals("按班级查询")){String Class =JOptionPane.showInputDialog(null,"请输入班级");if(Class!=null){if(!Class.equals("")){jtable.updateUI();if(Search(FileName,5,Class) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该班级的学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}cardl.show(card, "查看");}else{JOptionPane.showMessageDialog(null, "对不起，请确保输入班级！", "提示", JOptionPane.INFORMATION_MESSAGE);}}}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("按学号排序")){jtable.updateUI();Sort(0);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按年龄排序")){jtable.updateUI();Sort(3);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按总成绩排序")){jtable.updateUI();Sort(10);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按Java排序")){jtable.updateUI();Sort(8);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按数学排序")){jtable.updateUI();Sort(6);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按软件工程排序")){jtable.updateUI();Sort(7);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按操作系统排序")){jtable.updateUI();Sort(9);cardl.show(card, "查看");}else if (e.getActionCommand().equals("按总成绩排序")){String Age=JOptionPane.showInputDialog(null,"请输入年龄");jtable.updateUI();}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("求数学平均分")){cardl.show(card, "首页");JOptionPane.showMessageDialog(null, "数学平均分:"+String.valueOf(SearchAvg(6)), "提示", JOptionPane.INFORMATION_MESSAGE);}else if (e.getActionCommand().equals("求Java平均分")){cardl.show(card, "首页");JOptionPane.showMessageDialog(null, "Java平均分:"+String.valueOf(SearchAvg(8)), "提示", JOptionPane.INFORMATION_MESSAGE);}else if (e.getActionCommand().equals("求软件工程平均分")){cardl.show(card, "首页");JOptionPane.showMessageDialog(null, "软件工程平均分:"+String.valueOf(SearchAvg(7)), "提示", JOptionPane.INFORMATION_MESSAGE);}else if (e.getActionCommand().equals("求操作系统平均分")){cardl.show(card, "首页");JOptionPane.showMessageDialog(null, "操作系统平均分:"+String.valueOf(SearchAvg(9)), "提示", JOptionPane.INFORMATION_MESSAGE);}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("Math饼形图")){int information[] = new int [7];double n =0;information = percent(6);n = (double)information[5]/100;Jfree jf = new Jfree("Math",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("Java饼形图")){int information[] = new int [7];double n =0;information = percent(8);n = (double)information[5]/100;Jfree jf = new Jfree("Java",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("System饼形图")){int information[] = new int [7];double n =0;information = percent(9);n = (double)information[5]/100;Jfree jf = new Jfree("System",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("Software饼形图")){int information[] = new int [7];double n =0;information = percent(7);n = (double)information[5]/100;Jfree jf = new Jfree("Software",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("Math柱形图")){int information[] = new int [7];double n =0;information = percent(6);n = (double)information[5]/100;Jfree2 jf = new Jfree2("Math",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("Java柱形图")){int information[] = new int [7];double n =0;information = percent(8);n = (double)information[5]/100;Jfree2 jf = new Jfree2("Java",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("System柱形图")){int information[] = new int [7];double n =0;information = percent(9);n = (double)information[5]/100;Jfree2 jf = new Jfree2("System",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("Software柱形图")){int information[] = new int [7];double n =0;information = percent(7);n = (double)information[5]/100;Jfree2 jf = new Jfree2("Software",information[0]/n,information[1]/n,information[2]/n,information[3]/n,information[4]/n);}else if (e.getActionCommand().equals("help")){}//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++else if (e.getActionCommand().equals("按学号修改提交")){String[] information = new String[10];String sex = null;if(jtAlterID.getText().equals("")){JOptionPane.showMessageDialog(null, "对不起，请填写要修改学生的学号！", "提示", JOptionPane.INFORMATION_MESSAGE);}else if(!Check(jtAlterSystem.getText())||!Check(jtAlterID.getText())||!Check(jtAlterSoftware.getText())||!Check(jtAlterJava.getText())||!Check(jtAlterMath.getText())||!Check(jtAlterAge.getText())){JOptionPane.showMessageDialog(null, "对不起，请确保信息格式正确！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{information[0] = jtAlterID.getText();information[1] = jtAlterName.getText();if (jr_man.isSelected()){sex = "男";}else{sex = "女";}information[2] = sex;information[3] = jtAlterAge.getText();information[4] = jtAlterCollage.getText();information[5] = jtAlterClass.getText();information[6] = jtAlterMath.getText();information[7] = jtAlterSoftware.getText();information[8] = jtAlterJava.getText();information[9] = jtAlterSystem.getText();if(alter(0,information) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{jtAlterID.setText("");jtAlterAge.setText("");jtAlterCollage.setText("");jtAlterClass.setText("");jtAlterMath.setText("");jtAlterSoftware.setText("");jtAlterJava.setText("");jtAlterSystem.setText("");jtAlterName.setText("");JOptionPane.showMessageDialog(null, "修改信息成功", "提示", JOptionPane.INFORMATION_MESSAGE);}}}else if (e.getActionCommand().equals("按姓名修改提交")){String[] information = new String[10];String sex = null;if(jtAlterName2.getText().equals("")){JOptionPane.showMessageDialog(null, "对不起，请填写要修改学生的姓名！", "提示", JOptionPane.INFORMATION_MESSAGE);}else if(!Check(jtAlterSystem2.getText())||!Check(jtAlterID2.getText())||!Check(jtAlterSoftware2.getText())||!Check(jtAlterJava2.getText())||!Check(jtAlterMath2.getText())||!Check(jtAlterAge2.getText())){JOptionPane.showMessageDialog(null, "对不起，请确保信息格式正确！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{information[0] = jtAlterID2.getText();information[1] = jtAlterName2.getText();if (jr_man2.isSelected()){sex = "男";}else{sex = "女";}information[2] = sex;information[3] = jtAlterAge2.getText();information[4] = jtAlterCollage2.getText();information[5] = jtAlterClass2.getText();information[6] = jtAlterMath2.getText();information[7] = jtAlterSoftware2.getText();information[8] = jtAlterJava2.getText();information[9] = jtAlterSystem2.getText();if(alter(1,information) == 0){JOptionPane.showMessageDialog(null, "对不起，成绩管理系统中没有该学生！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{jtAlterID2.setText("");jtAlterAge2.setText("");jtAlterCollage2.setText("");jtAlterClass2.setText("");jtAlterMath2.setText("");jtAlterSoftware2.setText("");jtAlterJava2.setText("");jtAlterSystem2.setText("");jtAlterName2.setText("");JOptionPane.showMessageDialog(null, "修改信息成功", "提示", JOptionPane.INFORMATION_MESSAGE);}}}else if (e.getActionCommand().equals("添加提交")){String information = null;String sex = null;double math,system,java,software;// 请确保信息填完成if (jtAddCollage.getText().equals("") || jtAddSystem.getText().equals("") || jtAddID.getText().equals("") || jtAddName.getText().equals("") || jtAddAge.getText().equals("") || jtAddClass.getText().equals("")        || jtAddMath.getText().equals("") || jtAddJava.getText().equals("") || jtAddSoftware.getText().equals("")){JOptionPane.showMessageDialog(null, "对不起，请确保信息填完成！", "提示", JOptionPane.INFORMATION_MESSAGE);}else if(!Check(jtAddSystem.getText())||!Check(jtAddID.getText())||!Check(jtAddSoftware.getText())||!Check(jtAddJava.getText())||!Check(jtAddMath.getText())||!Check(jtAddAge.getText())){JOptionPane.showMessageDialog(null, "对不起，请确保信息格式正确！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{math = Double.parseDouble(jtAddMath.getText());system = Double.parseDouble(jtAddSystem.getText());java = Double.parseDouble(jtAddJava.getText());software = Double.parseDouble(jtAddSoftware.getText());if (jr_man.isSelected()){sex = "男";}else{sex = "女";}information = jtAddID.getText() + " " + jtAddName.getText() + " " + sex + " " + jtAddAge.getText()+" " +jtAddCollage.getText() +" " + jtAddClass.getText() + " " + jtAddMath.getText() + " "        + jtAddSoftware.getText() + " " + jtAddJava.getText() + " " + jtAddSystem.getText()+" "+String.valueOf(math+system+java+software)+" "+String.valueOf((math+system+java+software)/4);if (isEixt(jtAddID.getText(), FileName)){JOptionPane.showMessageDialog(null, "对不起，该信息已经填写！", "提示", JOptionPane.INFORMATION_MESSAGE);}else{add(information, FileName);jtAddID.setText("");jtAddName.setText("");jtAddCollage.setText("");jtAddClass.setText("");jtAddAge.setText("");jtAddMath.setText("");jtAddSystem.setText("");jtAddSoftware.setText("");jtAddJava.setText("");JOptionPane.showMessageDialog(null,"成功","提示",JOptionPane.INFORMATION_MESSAGE);}}}}class MyTableModel extends AbstractTableModel{private String[] columnNames = {"学号","姓名","性别","年龄","学院","班级","数学","软件工程","Java","操作系统","总成绩","平均分"};private String[][] data = student;public int getColumnCount(){return columnNames.length;}public int getRowCount(){if(data == null){return 0;}else{return data.length;}}//        public void addRow(String ID,String Name,String Age,String Class,String sex,String Math,String Software,String Java,String System)//        {//        int n;//        if(data == null)//        {//        n = 0;//        }//        else//        {//        n = data.length;//        }//    data[n] = new String[9];//    data[n][0] = ID;//    //        }public String getColumnName(int col){return columnNames[col];}public String getValueAt(int row, int col){return data[row][col];}public Class getColumnClass(int c){return getValueAt(0, c).getClass();}public boolean isCellEditable(int row, int col){return false;}}public static void main(String[] args){main m = new main();m.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}}

 

柱形图：

package System;import java.awt.Font;import javax.swing.JPanel;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartFrame;import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.Axis;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.ValueAxis;import org.jfree.chart.plot.CategoryPlot;import org.jfree.chart.plot.PlotOrientation;import org.jfree.chart.title.TextTitle;import org.jfree.data.category.CategoryDataset;import org.jfree.data.category.DefaultCategoryDataset;import org.jfree.ui.ApplicationFrame;import org.jfree.ui.RefineryUtilities;public class Jfree2{private static double excellent;private static double well;private static double middling;private static double pass;private static double fail;private static String subject;public Jfree2(String subject,double a,double b,double c,double d,double e)    {this.subject = subject;this.excellent = a;this.well = b;this.middling = c;this.pass = d;this.fail = e;    createJFreeChart();    }private static CategoryDataset createDataSet() {DefaultCategoryDataset dataset = new DefaultCategoryDataset();dataset.setValue(excellent, "优秀", "优秀");dataset.setValue(well, "良好", "良好");dataset.setValue(middling, "中等", "中等");dataset.setValue(pass, "及格", "及格");dataset.setValue(fail, "不及格", "不及格");return dataset;}private static void createJFreeChart() {JFreeChart jfreeChart = ChartFactory.createBarChart3D(subject,"成绩等级", "百分比", createDataSet(), PlotOrientation.VERTICAL, true, false,false);jfreeChart.setTitle(new TextTitle(subject, new Font("宋体", Font.BOLD + Font.ITALIC, 20)));CategoryPlot plot = (CategoryPlot) jfreeChart.getPlot();// 设置透明度plot.setForegroundAlpha(0.5f);// 设置标题字体jfreeChart.getTitle().setFont(new Font("宋体", Font.BOLD, 20));// 设置图例类别字体jfreeChart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 14));//获取x轴对象CategoryAxis domainAxis = plot.getDomainAxis();//获取Y轴对象ValueAxis numberaxis = plot.getRangeAxis();//设置x轴坐标上的文字domainAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 14));//设置x轴的标题文字domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 16));//设置Y轴坐标上的文字numberaxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 12));//设置y轴的标题文字numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 16));ChartFrame frame = new ChartFrame("成绩等级信息表", jfreeChart);frame.pack();RefineryUtilities.centerFrameOnScreen(frame);frame.setVisible(true);}}

饼形图：

package System;import java.awt.Font;import java.awt.RenderingHints;import org.jfree.chart.ChartFactory;import org.jfree.chart.ChartFrame;import org.jfree.chart.JFreeChart;import org.jfree.chart.plot.PiePlot;import org.jfree.data.general.DefaultPieDataset;import org.jfree.ui.RefineryUtilities;public class Jfree {private static double excellent;private static double well;private static double middling;private static double pass;private static double fail;private static String subject =null;private JFreeChart jfreeChart;public Jfree(String subject,double a,double b,double c,double d,double e){this.subject = subject;this.excellent = a;this.well = b;this.middling = c;this.pass = d;this.fail = e;createPieChart();}public static  DefaultPieDataset createDataset() {DefaultPieDataset Dataset = new DefaultPieDataset();if(excellent!=0){Dataset.setValue("优秀", excellent);}if(well !=0){Dataset.setValue("良好", well);}if(middling!=0){Dataset.setValue("中等 ", middling);}if(pass!=0){Dataset.setValue("及格 ", pass);}if(fail!=0){Dataset.setValue("不及格 ", fail);}return Dataset;}public static void createPieChart() {// 通过工程创建3D饼图JFreeChart jfreeChart = ChartFactory.createPieChart(subject,createDataset(), true, true, false);jfreeChart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);// 得到3D饼图的plot对象PiePlot piePlot = (PiePlot) jfreeChart.getPlot();// 设置透明度piePlot.setForegroundAlpha(0.5f);piePlot.setLabelFont((new Font("宋体", Font.PLAIN, 12)));// 设置标题字体jfreeChart.getTitle().setFont(new Font("隶书", Font.BOLD, 20));// 设置图例类别字体jfreeChart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 14));ChartFrame frame = new ChartFrame("成绩等级信息表", jfreeChart);frame.pack();RefineryUtilities.centerFrameOnScreen(frame);frame.setVisible(true);}}

 

源代码下载：点击打开链接