public class Countdown { private int lin; public Countdown(int lin)throws InterruptedException{ this.lin = lin; System.out.println("最后倒数时刻:" + lin + "秒" + "\n"); while (lin > 0){ System.out.println("倒计时: "+ --lin…
public class Countdown3 { private int lin; private int curSec; public Countdown3(int lin)throws InterruptedException{ this.lin = lin; this.curSec = lin; System.out.println("最后倒计时:" + lin + "秒"); Timer t = new Timer(); t.schedule(new Ti…
1,创建需要同步的对象(方式一) package concurrency; public class Bank { private double amount; public Bank(double amount){ this.amount = amount; } public double getAmount() { return amount; } public void setAmount(double amount) { this.amount = amount; } public sy…