java代码活期存款 活期存期代码
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);}}
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用java线程同步实现银行取款和存款。
你的代码问题很多！
帮你修改后：
class Account {
private static float Balance = 200f;//线程共享的钱
public synchronized static void deposit(float amt) {
Balance = Balance + amt;
try {
Thread.sleep(10);// 模拟其它处理所需要的时间，比如刷新数据库等
}
catch (InterruptedException e) {
}
}
public static float getBalance() {
return Balance;
}
public static void setBalance(float balance) {
Balance = balance;
}
public synchronized static void withdraw(float bmt) {
Balance -= bmt;
try {
Thread.sleep(10);// 模拟其它处理所需要的时间，比如刷新数据库等
}
catch (InterruptedException e) {
}
}
String name;
public Account(String name) {
this.name = name;
}
}
public class AccountTest {
public static void main(String[] args) {
Customer customerA = new Customer("A");
Customer customerB = new Customer("B");
customerA.start();
customerB.start();
System.out.println();
try {
customerA.join();//等待A线程执行完毕
customerB.join();//等待B线程执行完毕
}
catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("最后总钱数:" + Account.getBalance());
}
}
class Customer extends Thread {
public Customer(String string) {
super(string);
}
@Override
public void run() {
System.out.println(currentThread().getName());
if (currentThread().getName().equals("A"))
Account.deposit(100.0f);//A线程加100
else if (currentThread().getName().equals("B"))
Account.withdraw(50.0f);//B线程减50
}
}
用java语言编写一个小型的银行系统代码
private int balance = 0;
private String username = "A";
private String password = "B";
public void bank() {
Scanner scan = new Scanner(System.in);
String temp;
while (true) {
System.out.println("输入账号：");
if (scan.hasNext()) {
temp = scan.next();
if (temp.equals(username)) {
break;
} else {
System.out.println("输入错误");
}
}
}
while (true) {
System.out.println("输入密码：");
if (scan.hasNext()) {
temp = scan.next();
if (temp.equals(password)) {
break;
} else {
System.out.println("输入错误");
}
}
}
System.out.println("登录成功");
while (true) {
System.out.println("输入操作：");
if (scan.hasNext()) {
temp = scan.next();
switch (temp) {
case "存款":
int x = 0;
while (true) {
System.out.println("输入存款金额：");
if (scan.hasNextInt()) {
x = scan.nextInt();
break;
} else {
System.out.println("输入错误");
scan.next();
}
}
balance += x;
break;
case "取款":
int y = 0;
while (true) {
System.out.println("输入取款金额：");
if (scan.hasNextInt()) {
y = scan.nextInt();
if (balance y) {
System.out.println("余额不足");
continue;
}
break;
} else {
System.out.println("输入错误");
scan.next();
}
}
balance -= y;
break;
case "余额":
System.out.println("余额：" + balance);
break;
case "终止":
System.exit(0);
default:
System.out.println("未知操作");
}
}
}
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