java实现极简单的 TXT小说阅读器

来源：互联网发布：apache参数优化编辑：程序博客网时间：2024/06/10 09:32
public class Display_txt extends JFrame {JFrame jframe = new JFrame();JTextArea content;boolean flag = true;String str_filePath = null;public Display_txt(){//输入框content = new JTextArea(10,50);content.setAutoscrolls(true);JScrollPane contentScroll = new JScrollPane(content);content.setBorder(BorderFactory.createBevelBorder(1));JPanel upper = new JPanel(new BorderLayout());upper.add(contentScroll);//按钮JButton filePath = new JButton("打开文件");filePath.addActionListener(new ActionListener(){public void actionPerformed(ActionEvent e){try{JFileChooser jfc = new JFileChooser();if(jfc.showOpenDialog(jframe)==JFileChooser.APPROVE_OPTION ){str_filePath = jfc.getSelectedFile().getAbsolutePath();}BufferedReader bufferedReader = new BufferedReader(new FileReader(str_filePath));String str_line;while((str_line=bufferedReader.readLine())!=null){if(flag){content.setText(str_line);flag = false;}else{content.setText(content.getText()+"\n"+str_line);}}bufferedReader.close();}catch(FileNotFoundException e1){e1.printStackTrace();}catch(IOException e2){e2.printStackTrace();}}});JPanel buttonp = new JPanel();buttonp.add(filePath);JPanel all = new JPanel(new GridLayout(1,1));all.add(upper);jframe.add(buttonp,BorderLayout.SOUTH);jframe.add(all,BorderLayout.CENTER);jframe.pack();Toolkit tool = Toolkit.getDefaultToolkit();Dimension screen = tool.getScreenSize();jframe.setLocation(screen.width/2-jframe.getWidth()/2,screen.height/2-jframe.getHeight()/2);jframe.setTitle("TXT小说阅读器");jframe.setVisible(true);jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}public static void main(String args[]){Display_txt display_demo = new Display_txt();}}
图一：
图二：
图三：
0 0