YaoRaoLov 2009-02-12 14:28 采纳率: 50%
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Java 中的"实现可运行"和"扩展线程"

From what time I've spent with threads in Java, I've found these two ways to write threads:

With implements Runnable:

public class MyRunnable implements Runnable {
    public void run() {
        //Code
    }
}
//Started with a "new Thread(new MyRunnable()).start()" call

Or, with extends Thread:

public class MyThread extends Thread {
    public MyThread() {
        super("MyThread");
    }
    public void run() {
        //Code
    }
}
//Started with a "new MyThread().start()" call

Is there any significant difference in these two blocks of code ?

转载于:https://stackoverflow.com/questions/541487/implements-runnable-vs-extends-thread-in-java

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  • 狐狸.fox 2009-02-12 14:32
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    Yes: implements Runnable is the preferred way to do it, IMO. You're not really specialising the thread's behaviour. You're just giving it something to run. That means composition is the philosophically "purer" way to go.

    In practical terms, it means you can implement Runnable and extend from another class as well.

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