Thread和Runnable的关系

最新推荐文章于 2024-10-30 16:20:29 发布

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#Thread和Runnable关系 #Thread #Runnable

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本文详细介绍了在Java中实现多线程的两种主要方法：通过继承Thread类和实现Runnable接口。通过具体的代码示例，展示了如何创建和启动线程，为理解和应用Java多线程提供了清晰的指导。

Thread是实现了Runnable接口的类，使得run支持多线程
因类的单一继承原则，推荐多使用Runnable接口

继承Thread 类并重写run方法

public class MyThread extends Thread {
	
	private String name;

	public MyThread(String name) {
		this.name = name;
	}
	
	@Override
	public void run() {
		System.out.println("welcome to "+this.name);
	}

}

实现Runnable 接口并重写run方法

public class MyRunnable implements Runnable {

	private String name;
	
	public MyRunnable(String name) {
		this.name = name;
	}

	public void run() {
		System.out.println("welcome to "+this.name);
	}

}

public class ThreadTest {
	
	public static void main(String[] args) {
		MyThread myThread = new MyThread("线程A");
		MyThread myThread2 = new MyThread("线程B");
		MyThread myThread3 = new MyThread("线程C");
		myThread.start();
		myThread2.start();
		myThread3.start();
		MyRunnable run1 = new MyRunnable("RunA");
		MyRunnable run2 = new MyRunnable("RunB");
		MyRunnable run3 = new MyRunnable("RunC");
		Thread t1 = new Thread(run1);
		Thread t2 = new Thread(run2);
		Thread t3 = new Thread(run3);
		t1.start();
		t2.start();
		t3.start();
	}
}