Java 存储钱取钱作业
package testthread3;
public class testwork7next4 {
public static void main(String[] args) throws InterruptedException {
Account account = new Account("张三",200);
System.out.println("初始账户信息：" + account);
Thread1 thread1 = new Thread1(account,100);
Thread2 thread2 = new Thread2(account,50);
thread1.start();
thread2.start();
thread1.join();
thread2.join();
System.out.println("最终账户信息：" + account);
System.out.println("最终账户余额应为250元：" + account.getBalance());
}
}
class Account {
private String username;
private double balance;
public Account(String username, double balance) {
this.username = username;
this.balance = balance;
}
public synchronized void cunkuan (double amount){
if (amount>0){
balance += amount;
System.out.println("存款后余额："+balance);
}
}
public synchronized void qukuan (double amount){
if (amount > 0 && amount<= balance){
balance -= amount;
System.out.println("取款后余额："+ balance);
}else if(amount > balance){
System.out.println("取款是白！余额不足");
}
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public double getBalance() {
return balance;
}
public void setBalance(double balance) {
this.balance = balance;
}
@Override
public String toString() {
return "Account{" +
"username='" + username + '\'' +
", balance=" + balance +
'}';
}
}
class Thread1 extends Thread{ //存款线程
private Account account;
private double amount;
public Thread1(Account account,double amount){
super("存款线程1");
this.account = account;
this.amount = amount;
}
public void run(){
account.cunkuan(amount);
System.out.println("操作完成");
}
}
class Thread2 extends Thread { // 取款线程
private Account account;
private double amount;
public Thread2(Account account, double amount) {
super("取款线程B");
this.account = account;
this.amount = amount;
}
public void run() {
System.out.println(getName() + " 开始操作...");
account.qukuan(amount);
System.out.println(getName() + " 操作完成");
}
}