public static void main(String[] args) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                System.out.println(Thread.currentThread().getName() + "我是一個無返回結(jié)果的任務(wù)線程");
            }
        },"線程一:").start(); //start()開啟任務(wù)
    }

二：Callable示例

2.1 JAVA異步編程之Callbacks與Futures模型

我是用Executors線程池的方式來創(chuàng)建的。

2.2 用最原始的方法

public class PrimitiveCallable implements Callable, Runnable {
    
    public static void main(String[] args) {
        //實(shí)現(xiàn)
        new Thread(new PrimitiveCallable(), "線程二:").start();
    }
    @Override
    public void run() {//Runnable實(shí)現(xiàn)
        try {
            Object call = this.call();
            System.out.println(call);
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }
    @Override
    public Object call() throws Exception { //Callable 實(shí)現(xiàn)
        return "異步任務(wù)返回的結(jié)果!!!";
    }
}

2.3 FutureTask 一種jdk的實(shí)現(xiàn)方式

public class FutureTask<V> implements RunnableFuture<V> { //RunnableFuture 實(shí)現(xiàn)了以上2個接口
    ........省略.........
	public void run() { //重寫run實(shí)現(xiàn)
        if (state != NEW ||
            !UNSAFE.compareAndSwapObject(this, runnerOffset,
                                         null, Thread.currentThread()))
            return;
        try {
            Callable<V> c = callable; //構(gòu)建對象是傳入的參數(shù)
            if (c != null && state == NEW) {
                V result;
                boolean ran;
                try {
                    result = c.call(); //調(diào)用任務(wù)并返回結(jié)果
                    ran = true;
                } catch (Throwable ex) {
                    result = null;
                    ran = false;
                    setException(ex); //設(shè)置異常時的結(jié)果
                }
                if (ran)
                    set(result); //設(shè)置結(jié)果
            }
        } finally {
            runner = null;
            int s = state;
            if (s >= INTERRUPTING)
                handlePossibleCancellationInterrupt(s);
        }
    }
     ........省略.........
}

小結(jié)

1 不要糾結(jié)有幾種創(chuàng)建線程的方法了，就一種即通過Thread，但Thread有9個構(gòu)造函數(shù)方法

2 9個構(gòu)造函數(shù)方法

 public Thread()
 public Thread(Runnable target)
 Thread(Runnable target, AccessControlContext acc)
 public Thread(ThreadGroup group, Runnable target)
 public Thread(String name)
 public Thread(ThreadGroup group, String name)
 public Thread(Runnable target, String name)
 public Thread(ThreadGroup group, Runnable target, String name)
 public Thread(ThreadGroup group, Runnable target, String name,
                  long stackSize)

到此這篇關(guān)于Java中Runnable與Callable接口的區(qū)別詳解的文章就介紹到這了,更多相關(guān)Java Runnable Callable接口內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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