「银行存钱java」银行存钱可以存50元吗

博主:adminadmin 2023-01-06 02:45:05 724

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如何用Java线程实现银行的存款取款问题最好能写出编出的具体程序

AccountTest.java class BankAccount //定义银行账户类BankAccount{private static int amount =2000; //账户余额最初为2000public void despoit(int m) //定义存款的方法{amount=amount+m;System.out.println("晓明存入["+m+"元]");}public void withdraw(int m) //定义取款的方法{amount=amount-m;System.out.println("张新取走["+m+"元]");if(amount0)System.out.println("***余额不足!***);public int balance() //定义得到账户余额的方法{return amount;}}classicCustomerextendsThread {String name;BankAccount bs; //定义一个具体的账户对象public Customer(BankAccount b,String s){name=s;bs=b;}public static void cus(String name,BankAccount bs) //具体的账户操作方法{if(name.equals("小明")) //判断用户是不是小明{try{for(int i=0;i6;i++) //用户晓明则向银行存款6次,每次1000元 {Thread.currentThread().sleep((int)(Math.random()*300));bs.despoit(1000);}}catch(InterruptedException e){}}else{try{for(int i=0;i6;i++) //用户不是小明则从银行取款6次,每次1000元{Thread.currentThread().sleep((int)(Math.random()*300));bs.withdraw(1000); }}catch(InterruptedException e){} }}public void run() //定义run方法}cus(name,bs); }}public classAccountTest{public static void main(String [] args) throws InterruptedException{BankAccount bs=new BankAccount();Customer customer1=new Customer(bs,"小明");Customer customer2=new Customer(bs,"张新");Thread t1=new Thread(customer1);Thread t2=new Thread(customer2);t1.Start();t2.start();Thread.currentThread().sleep(500);}}

java编写程序,计算在银行存10000元一年后的金额,银行一年的定期利息是百

public class Test {

 public static void main(String[] args) {

  

  double rate = 3.0 / 100; // 利息3%

  double amt = 10000; // 金额 10000

  int daysOfYear = 365; // 利息计算方式

  int term = 365; // 存多久 365天表示一年

  

  // 利息

  double interest = (term / daysOfYear) * (amt * rate);

  // 到期金额

  double mamt = interest + amt;

  

  System.out.println(amt + "元存银行" + term + "天,利息是:" + interest + ",到期金额是:" + mamt + "。");

 }

 

}

使用JAVA编写一个简单的银行存取款程序

package com.lw.thread;

/*

银行账户类Account(不能透支),

包含账号id(10~16位数字),密码password(6位数字),户主姓名name,余额balence

*/

public class Account {

private String id;

private int password;

private String name;

private double balence;

public String getId() {

return id;

}

public void setId(String id) {

this.id = id;

}

public int getPassword() {

return password;

}

public void setPassword(int password) {

this.password = password;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public double getBalence() {

return balence;

}

public void setBalence(double balence) {

this.balence = balence;

}

/*

* 默认构造账户信息为:1111111111111111,666666,钱三多,888888.88。

*/

public Account() {

super();

this.id = "1111111111111111";

this.password = 666666;

this.name = "钱三多";

this.balence = 888888.88;

}

/*

* 另一个构造方法带4个参数分别初始化4个属性(带数据有效性验证)。

*/

public Account(String id, int password, String name, double balence) {

this.id = id;

this.password = password;

this.name = name;

this.balence = balence;

}

/*

* 查询余额

*/

public static double selectMoney(Account account) {

return account.getBalence();

}

/*

* 存钱

*/

public static String setMoney(Account account, double balence) {

if (balence 0) {

return "存钱失败,请正确放入!";

}

double d = balence + account.getBalence();

account.setBalence(d);

return "您存入了" + balence + "元,现账户余额为+" + d;

}

/*

* 取钱

*/

public static String getMoney(Account account, double balence) {

double d = account.getBalence();

if (balence d) {

return "您的余额不足!";

}

account.setBalence(d - balence);

return "您取出了" + balence + "元,现账户余额为+" + account.getBalence();

}

}

JAVA高手来,题目是:自定义异常类,实现银行的存钱和取钱业务

3个类,开始...

1,

/**

*

* 自定义异常类

*

*/

public class MyException extends Exception {

//验证交易类型正确性

public void TransactionsInfo(){

System.out.println("交易失败,只能输入0或者1");

}

//验证金额正确性

public void amountInfo(){

System.out.println("交易失败,输入金额不能为负数或者字符");

}

}

2,

public class User {

/**

* 用户信息类

*/

private String name; //用户名

private float amount; //用户金额

public User(String name,float amount){

this.name = name;

this.amount = amount;

}

public float getAmount() {

return amount;

}

public void setAmount(float amount) {

this.amount = amount;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

// 交易的方法,需要接受两个参数,一个是代表交易方式(取款,或者存款,),一个代表交易金额

public User Transactions() throws MyException{

System.out.println("请输入您的交易方式.0代表存款,1代表取款");//提示用户交易方式

BufferedReader br1=new BufferedReader(new InputStreamReader(System.in));

BufferedReader br2=new BufferedReader(new InputStreamReader(System.in));

String flag = null;

try {

flag = br1.readLine();

} catch (IOException e) {

e.printStackTrace();

}

if("0".equals(flag)){

}else if("1".equals(flag)){

amount=-amount;//因为1代表取款,所以变成负数

}else{

new MyException().TransactionsInfo(); //打印类型错误

return this;

}

String amountString = null;

try {

amountString = br2.readLine();

} catch (IOException e) {

e.printStackTrace();

}

float amount = 0.0f;

try{

amount = Float.parseFloat(amountString);

}catch(Exception ex){

throw new MyException();

}

this.amount = this.amount+amount;//交易

return this; //返回用户信息

}

}

3,

public class MoneyTest {

/**

* 测试类

* @param args

*/

public static void main(String[] args){

User user = new User("张三",123.4f); //测试用户

System.out.println("用户"+user.getName()+"交易前的金额为:"+user.getAmount());

try {

user.Transactions();

} catch (MyException e) {

// TODO Auto-generated catch block

e.amountInfo();

}//调用方法

System.out.println("交易后的金额为"+user.getAmount());

}

}

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