1.银行有一个账户,有两个储户分别向同一个账户存3000元,存3次。每次存完打印账户余额。
public class AccountTest {
public static void main(String[] args){
Account acct=new Account(1000);
Customer c1=new Customer(acct);
Customer c2=new Customer(acct);
c1.setName("甲");
c2.setName("乙");
c1.start();
c2.start();
}
}
class Account{
private double balance;
public Account(double balance){
this.balance=balance;
}
//存钱
public synchronized void deposit(double amt){
if (amt>0){
balance+=amt;
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+"存钱成功。余额为:"+balance);
}
}
}
class Customer extends Thread{
private Account acct;
public Customer(Account acct){
this.acct=acct;
}
@Override
public void run() {
for (int i=0;i<3;i++){
acct.deposit(100);
}
}
}