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java多線程的4種實現方式

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1,繼承Thread類,重寫run方法;

public class Thread01 extends Thread{
    public Thread01(){
    }
    public void run(){  
        System.out.println(Thread.currentThread().getName());
    }
    public static void main(String[] args){ 
        Thread01 thread01 = new Thread01(); 
        thread01.setName("繼承Thread類的線程1");
        thread01.start();       
        System.out.println(Thread.currentThread().toString());  
    }
}

2,實現Runnable接口,重寫run方法;

public class Thread02 {

    public static void main(String[] args){ 
        System.out.println(Thread.currentThread().getName());
        Thread t2 = new Thread(new MyThread02());
        t2.start(); 
    }
}
class MyThread02 implements Runnable{
    @Override
    public void
run() { System.out.println(Thread.currentThread().getName()+"2--實現Runnable接口的線程實現方式"); } }

3,實現Callable接口通過FutureTask包裝器來創建Thread線程;

4,通過線程池創建線程;

public class Thread04 {
    
    private static int POOL_NUM =10;
    
    public static void main(String[] args)throws InterruptedException {
        ExecutorService executorService 
= Executors.newFixedThreadPool(5); for (int i = 0; i < POOL_NUM; i++) { RunnableThread runnable =new RunnableThread (); executorService.execute(runnable); } executorService.shutdown(); } } class RunnableThread implements Runnable{ @Override public void run() { System.out.println("4--通過線程池創建的線程:" + Thread.currentThread().getName() + " "); } }

java多線程的4種實現方式