具体如下：

package com.jredu.ch03;import java.util.Scanner;public class Work4 {    public static void main(String[] args) {        // TODO Auto-generated method stub        Scanner scan = new Scanner(System.in);        for (int i = 1; i < 4; i++) {            System.out.print("请输入密码：");            String pwd = scan.next();            if (!pwd.equals("111111")) {                //密码错误                if(i==3){                    System.out.println("密码错误，请取卡");                }else{                    System.out.println("密码错误，还有"+(3-i)+"次机会");                }            }else{                //密码正确                while(true){                    System.out.print("请输入金额:");                    int money = scan.nextInt();                    if(money%100==0&&money>0&&money<=1000){                        System.out.println("您取了"+money+"元");                        System.out.println("交易完成，请取卡！");                        return;                    }else{                        System.out.println("金额有误，请重新输入");                    }                }                }        }    }}