多线程笔记（二）线程的3种创建方式，利用线程抢票的逻辑与代码

class PrimeThread extends Thread {

    @Override
    public void run() {
        for(int i = 0; i<20;i++){
            System.out.println("我是多线程"+i);
        }

    }

    public static void main(String[] args) {

        PrimeThread primeThread = new PrimeThread();
        primeThread.start();

        for(int i = 0; i<200;i++){
            System.out.println("我是主线程"+i);
        }
    }
}

public class Runnablejk  implements Runnable {


    @Override
    public void run() {
        for(int i = 0; i<20;i++){
            System.out.println("我是多线程"+i);
        }
    }

    public static void main(String[] args) {

        Runnablejk primeThread = new Runnablejk();
        Thread thread = new Thread(primeThread);
        thread.start();

        for(int i = 0; i<200;i++){
            System.out.println("我是主线程"+i);
        }
    }
}

public class qp implements Runnable {
    private int ticket = 10;

    @Override
    public void run() {
        while (true){
            if(ticket <0){
               break;
            }
            try {
                Thread.sleep(Long.parseLong("200"));
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

                System.out.println(Thread.currentThread().getName()+"拿到了第"+ticket--+"票");


        }

    }

    public static void main(String[] args) {
        qp qp = new qp();
        Thread thread = new Thread(qp,"小红");
        Thread thread1 = new Thread(qp,"需");
        Thread thread2 = new Thread(qp,"uu");
        thread.start();
        thread1.start();
        thread2.start();
    }
}

public class callablejk  implements Callable {


    @Override
    public Boolean call() throws Exception {
        for(int i = 0; i<20;i++){
            System.out.println("我是多线程"+i);
        }
        return true;
    }

    public static void main(String[] args) throws ExecutionException, InterruptedException {

        callablejk thread = new callablejk();
        callablejk thread1 = new callablejk();
        callablejk thread2 = new callablejk();

//        创建一个线程池
        ExecutorService executorService = Executors.newFixedThreadPool(3);
//        将我们创建的线程放到这个线程池里面，放到里面就可以执行了
        Future<Boolean> submit = executorService.submit(thread);
        Future<Boolean> submit1 = executorService.submit(thread1);
        Future<Boolean> submit2 = executorService.submit(thread2);
//获取执行的结果，不写也可以
        Boolean aBoolean = submit.get();
        Boolean aBoolean1 = submit1.get();
        Boolean aBoolean2 = submit2.get();

//        关闭服务
        executorService.shutdownNow();

    }
}