项目一

package date528;

import java.util.Scanner;

public class Date528HomeWork {

static Money money = new Money();

static Scanner in =new Scanner(http://System.in);

public static void main(String[] args) {

// Test();//第一题

// money();//第二题

// new printer(9);//第三题

// new printer(9,12);

// new printer(9,122,3);

int a = 4;

int b = 6;

fun3(a,b);

Students stu1 =new Students();

stu1.setName("李四");stu1.setId(5);

Students stu2 = new Students();

stu2.setName("张三");stu2.setId(23);

fun3(stu1,stu2);

System.out.println("输出结果为\na="+a+"\tb="+b+"\nstu1="+stu1+"\tstu2="+stu2);

}

public static void Test() {

Students st = new Students();

st.learn();

}

public static void money(){

if(money.getUsername()==null) {

fun2();

}else {

System.out.println("欢迎进入存钱取钱功能，当前系统用户 "+"位\n输入您的姓名继续，");

String name = in.next();

money.setUsername(name);

fun2();

}

}

public static void fun2(){

System.out.println("欢迎"+money.getUsername()+"您的余额是"+money.getMoney()+"输入正确的数字选择功能\n1:存钱，\t2:取钱\t3退出");

int next = in.nextInt();

switch (next) {

case 1 :

int x = in.nextInt();

money.save(x);

break;

case 2:

System.out.println("输入取的金额");

int x1 = in.nextInt();

money.withdraw(x1);

break;

case 3:

System.exit(0);

default:

System.out.println("输入有误");

money();

}

}

public static void fun3(Object obj1,Object obj2) {

if(obj1 instanceof Students) {

Students temp = (Students) obj1;

((Students) obj1).setName(((Students) obj2).getName());

((Students) obj1).setId(((Students) obj2).getId());

((Students) obj1).setAge(((Students) obj2).getAge());

((Students) obj1).setGender(((Students) obj2).getGender());

((Students) obj2).setName(((Students) temp).getName());

((Students) obj2).setId(((Students) temp).getId());

((Students) obj2).setAge(((Students) temp).getAge());

((Students) obj2).setGender(((Students) temp).getGender());

}else {

Object temp = obj2;

obj2 = obj1;

obj1 = temp;

}

}

}