多线程的应用

public class MyRunable implements Runnable {
private int i = 100;
private String s = “abs”;

@Override
public void run() {
    while (i > 0) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {

            e.printStackTrace();
        }
        synchronized (s) {
            if(i>0){
            System.out.println(Thread.currentThread().getName() + "卖出了第" + i + "张票");
            i--;
            }

        }
    }


}

//这个和上个程序是独立的
public class MyThread extends Thread {
private int ticket = 200;
private String s = “abc”;

public MyThread() {

}

// 构造方法
public MyThread(String name) {
    super(name);
}

public void run() {
    while (ticket > 0) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {

            e.printStackTrace();
            synchronized (s) {
                if (ticket > 0) {
                    System.out.println(getName() + "卖出了第" + ticket + "张票");
                    ticket--;
                }

            }
        }
    }
}

public class Test {

public static void main(String[] args) {
    // MyThread t1=new MyThread("甲");
    // MyThread t2=new MyThread("乙");
    // MyThread t3=new MyThread("丙");
    // MyThread t4=new MyThread("丁");
    // t1.start();
    // t2.start();
    // t3.start();
    // t4.start();
    MyRunable runnable = new MyRunable();
    Thread t1 = new Thread(runnable, "甲");
    Thread t2 = new Thread(runnable, "乙");
    Thread t3 = new Thread(runnable, "丙");
    Thread t4 = new Thread(runnable, "丁");
    t1.start();
    try {
        t1.join(1000);//等待t1运行1秒
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    t2.start();
    t3.start();
    t4.start();

}