JAVA_多线程的实现方式

线程的状态

方式一：

public class Thread1 extends Thread {@Overridepublic void run() {synchronized (this) {for (int i = 0; i < 100; i++) {System.out.println(getName() + "===" + i);}}}
}

Thread1 thread1 = new Thread1();
thread1.start();

方式二：

public class MyRunnable implements Runnable {@Overridepublic void run() {for (int i = 0; i < 100; i++) {System.out.println(i);}}
}

MyRunnable myRunnable = new MyRunnable();
new Thread(myRunnable).start();

使用这个构造函数来完成

​​​​​​​public Thread(Runnable var1) {this.init((ThreadGroup)null, var1, "Thread-" + nextThreadNum(), 0L);
}

方式三：

public class MyCallable implements Callable<Integer> {private int sum;@Overridepublic Integer call() throws Exception {for (int i = 0; i < 100; i++) {System.out.println(i);sum += i;}return sum;}
}

        MyCallable myCallable = new MyCallable();FutureTask<Integer> futureTask = new FutureTask(myCallable);new Thread(futureTask).start();try {Integer o = futureTask.get();System.out.println(o);} catch (InterruptedException e) {e.printStackTrace();} catch (ExecutionException e) {e.printStackTrace();}

使用该构造函数完成

       public FutureTask(Callable<V> var1) {if (var1 == null) {throw new NullPointerException();} else {this.callable = var1;this.state = 0;}} public Thread(Runnable var1) {this.init((ThreadGroup)null, var1, "Thread-" + nextThreadNum(), 0L);}

方式四：

后续补充。。。