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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编程题 假设一个简单的在ATM取款的过程，首先提示输入密码，最多输入3次，超过3次，提
public class problems_15days_bank {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
for(int i=1;i=3;i++){
//System.out.println(i);
System.out.println("请您输入密码");
int password=input.nextInt();
if(password==111111){
boolean flag=true;
do{
flag=false;
System.out.println("请输入金额");
int rmb=input.nextInt();
if(rmb0rmb=1000){
switch(rmb%100){
case 0:
System.out.println("您取的金额="+rmb);
System.out.println("交易完成 请取卡");
break;
default:
flag=true;
break;
}}
} while(flag);
return;
}
}
System.out.println("密码错误 请取卡");
}
}
JAVA编写银行账户程序摸拟银行账户的存取款操作
public class ATM {
public static void main(String[] args) {
// 开立帐号
Account account = new Account();
// 在 account 中存 10,000 元
account.setBalance(10000);
// 检查 account 中的存款
System.out.println("帐户原始金额 : " + account.getBalance() + " 元");
// 小明, 小华与小英一起对 account 进行提款的动作
WithDraw s1 = new WithDraw("小明", account, 5000); // 小明 在 account 中提 5000 元
WithDraw s2 = new WithDraw("小华", account, 2000); // 小华 在 account 中提 2000 元
WithDraw s3 = new WithDraw("小英", account, 4000); // 小英 在 account 中提 4000 元
s1.start();
s2.start();
s3.start();
}
}
//帐户
class Account {
private int balance; // 帐户馀额
public int getBalance() { // 取得帐户馀额
return balance;
}
public void setBalance(int money) { // 设定帐户馀额
balance = money;
}
// 提款方法
public void withDraw(Account account, int withdrawMoney) {
String tName = Thread.currentThread().getName(); // tName=提款人
System.out.println(tName + " 开始提款 ... ");
boolean withDrawStatus; // 提款状态 说明:false=提款失败, true=提款成功
synchronized(ATM.class) {
int tmpBalabce = account.getBalance(); // 取得最新帐户馀额
//用 for-loop 模拟提款时系统所花的时间
for(double delay=0;delay99999999;delay++) {
// ... 提款进行中 ...
}
tmpBalabce = tmpBalabce - withdrawMoney; // 最新帐户馀额 - 欲提款金额 (用来判断是否馀额足够的依据)
if (tmpBalabce 0) { // 判断是否馀额足够
withDrawStatus = false;
System.out.println("....................");
System.out.println(" 帐户馀额不足！");
System.out.println("....................");
} else {
withDrawStatus = true;
account.setBalance(tmpBalabce); // 回存account最後剩馀金额
}
}
System.out.println(tName + "的交易单:");
System.out.println("t欲提款金额：" + withdrawMoney + "元");
System.out.println("t帐户馀额：" + account.getBalance());
if(withDrawStatus == true){
System.out.println(tName + " 完成提款 ... ");
} else {
System.out.println(tName + " 提款失败 ... ");
}
System.out.println("-------------------------------");
}
}
// 提款类别
class WithDraw extends Thread {
private Account account; // 帐号
private int withdrawMoney; // 欲提款的金额
// tName:执行绪名称, account:Account物件名称, withdrawMoney:欲提款金额
public WithDraw(String tName, Account account, int withdrawMoney) {
setName(tName);
this.account = account;
this.withdrawMoney= withdrawMoney;
}
public void run() {
// 执行提款动作(account:帐号, withdrawMoney 欲提款金额)
account.withDraw(account, withdrawMoney); // 执行提款动作
}
}