JAVA模拟ATM机

JAVA模拟ATM机

import java.util.*;
public class ATM {
static int people=123456;
static int mima=123456;
static int yue=10000;
static Scanner in=null;
public ATM(int people,int mima){
this.mima=mima;
}
public static void main(String[] args) {
chongxindenglu();
int count=1;
while(count!=0){
System.out.println("1、查询余额");
System.out.println("2、取款");
System.out.println("3、存款");
System.out.println("4、修改密码");
System.out.println("5、重新登录");
count=in.nextInt();
switch(count){
case 1: System.out.println(10000); System.out.println(); break;
case 2: quKuan(); break;
case 3: cunKuan(); break;
case 4: xiugai(); break;
case 5: chongxindenglu();
}
}
}
public static void quKuan(){
System.out.println("请输入取款金额：");
int qukuanjine=in.nextInt();
if(qukuanjine>5000){
System.out.println("取款金额不能大于5000"+"\n");
}else{
if(qukuanjine%100!=0){
System.out.println("取款金额必须为100的整数倍"+"\n");
}else{
yue=yue-qukuanjine;
System.out.println("您取出了"+qukuanjine+"元，您现在的余额为："+yue+"元"+"\n");
}
}
}

public static void cunKuan(){
System.out.println("请输入存款金额");
int cunkuanjine=in.nextInt();
if(cunkuanjine<0){
System.out.println("存款金额不能小于0");
}else{
yue=yue+cunkuanjine;
System.out.println("您已成功存入："+cunkuanjine+"元，您现在总余额为："+yue+"元"+"\n");
}
}

public static void xiugai(){
System.out.println("请输入您的密码：");
int mima1=in.nextInt();
if(mima1==mima){
System.out.println("请输入新密码：");
mima=in.nextInt();
System.out.println("您的密码已修改为："+mima+"\n");
}else{
System.out.println("密码输入错误："+"\n");
}
}

public static void chongxindenglu(){
in=new Scanner(System.in);
System.out.println("请输入登录帐号：");
int denglupeople=in.nextInt();
System.out.println("请输入登录密码：");
int denglumima=in.nextInt();

if(denglupeople==people && denglumima==mima)
System.out.println("帐号登录成功"+"\n");
else
System.out.println("密码输入错误，登录失败"+"\n");
}

}

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