十四章上机1

实现客户姓名录入  

package kj;public class kehu {String []names=new String[10];public void addName(String name){for(int i=0;i<names.length;i++){if(names[i]==null){names[i]=name;break;}}}public void showname(){System.out.println("        客户姓名列表:");for(int i=0;i<names.length;i++){System.out.print(names[i]+"  ");}}}

package kj;import java.util.*;public class shangji22 {public static void main(String[] args) {String name;shangji2 a = new shangji2();Scanner input = new Scanner(System.in);for (int i = 0; i < 5; i++) {System.out.println("请输入姓名");name = input.next();a.addName(name);}System.out.println("请输入要修改的名字:");String oldname=input.next();System.out.println("修改后的名字:");String newname=input.next();if(a.old(oldname, newname)){a.showname();}}}