Bank项目

package bank;

public class bankchaxun {
public void chaxun(User[] cus){
bankdenglu a=new bankdenglu();
int zhanghao=a.denglu(cus);
if(0!=zhanghao){
System.out.println("姓名："+cus[zhanghao].getname());
System.out.println("账号："+cus[zhanghao].getcard());
System.out.println("密码："+cus[zhanghao].getmima());
System.out.println("余额："+cus[zhanghao].getyue());
}
}

}

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package bank;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

import java.util.Scanner;

public class bankcunkuan{

Scanner in = new Scanner(System.in);

public void cunkuan(User[] cus){

bankdenglu a=new bankdenglu();
int zhanghao=a.denglu(cus);
if(0!=zhanghao){
System.out.println("输入存款金额：");
double money=in.nextDouble();
money+=cus[zhanghao].getyue();
cus[zhanghao].setyue(money);
System.out.println("银行卡余额为："+cus[zhanghao].getyue());
}
}

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package bank;

import java.util.Scanner;

public class bankdenglu {
Scanner in = new Scanner(System.in);
public int denglu(User[] cus){

System.out.println("请输入账号");
int zhanghao=in.nextInt();
if(zhanghao<1000||zhanghao>=10000||""==(cus[zhanghao].getmima())){
System.out.println("输入账号不存在");
return 0;
}else{
System.out.println("请输入密码");

String mima=in.next();

if((cus[zhanghao].getmima()).equals(mima)){
System.out.println("登录成功");
return zhanghao;
}
else{
System.out.println("密码错误");
return 0;
}
}

}

}

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package bank;

import java.util.Scanner;

public class bankmenu {
Scanner in = new Scanner(System.in);

public void menu(){
User[] cus =new User[10000];
cus[1000]=new User("tiantian",1000,"123456",123);

bankcunkuan b=new bankcunkuan();
bankqukuan c=new bankqukuan();
bankchaxun d=new bankchaxun();
bankxiugai e=new bankxiugai();

System.out.println("\t银行管理系统");
System.out.println("***************************");
System.out.println("\t1.------存款");
System.out.println("\t2.------取款");
System.out.println("\t3.------查询");
System.out.println("\t4.------修改密码");
System.out.println("***************************");
System.out.println("请输入服务项目：");
while(true){

int key=in.nextInt();
switch(key){
case 1:b.cunkuan(cus);break;
case 2:c.qukuan(cus);break;
case 3:d.chaxun(cus);break;
case 4:e.xiugai(cus);break;
default:System.out.println("输入不正确，请重新输入");
}
if(key>=1&&key<=4){
break;
}
}

}
}

 *************************************************
package bank;

import java.util.Scanner;

public class bankqukuan {

Scanner in = new Scanner(System.in);

public void qukuan(User[] cus){
bankdenglu a=new bankdenglu();
int zhanghao=a.denglu(cus);
if(0!=zhanghao){
System.out.println("请输入取款金额");

double money=in.nextDouble();
if(money<=cus[zhanghao].getyue()){
double yue=cus[zhanghao].getyue();
yue-=money;
cus[zhanghao].setyue(yue);
System.out.println("取款成功");
System.out.println("银行卡余额为："+cus[zhanghao].getyue());
System.exit(0);
}
else {
System.out.println("余额不足");

}
}
}

}

**************************************************

package bank;

import java.util.Scanner;

public class bankxiugai {
Scanner in = new Scanner(System.in);
public void xiugai(User[] cus){
bankdenglu a=new bankdenglu();
int zhanghao=a.denglu(cus);
if(0!=zhanghao){
System.out.println("请输入新密码");
String mima=in.nextLine();
cus[zhanghao].setmima(mima);
System.out.println("修改完成");
}
}
}

**************************************************

package bank;

public class User {

private String name = "";
private int card=1000;
private String mima = "";
private double yue=0;

public User(String name,int card,String mima,double yue){
this.name=name;
this.card=card;
this.mima=mima;
this.yue=yue;
}

public void setname(String name){
this.name=name;
}
public void setcard(int card){
this.card=card;
}
public void setmima(String mima){
this.mima=mima;
}
public void setyue(double yue){
this.yue=yue;
}

public String getname(){
return name;
}
public int getcard(){
return card;
}
public String getmima(){
return mima;
}
public double getyue(){
return yue;
}
}

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package bankTest;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;

import bank.User;
import bank.bankchaxun;
import bank.bankcunkuan;
import bank.bankmenu;
import bank.bankqukuan;
import bank.bankxiugai;

public class test {

public static void main(String[] args){
bankmenu d=new bankmenu();
d.menu();

Window win = new Window();
//    win.setBounds(300, 200, 500, 500);//x,y,width,height设置窗口的位置及大小

win.setTitle("银行系统");

}

}