创建线程的三种方式

创建线程的三种方式

1. Thread 匿名内部类

@Slf4j
public class CreateThread {public static void main(String[] args) {Thread t1 = new Thread("t1") {@Overridepublic void run() {log.info("hello world");}};t1.start();}
}

2.定义 Runable

public static void main(String[] args) {Runnable runnable = new Runnable() {@Overridepublic void run() {log.debug("runnable");}};Thread t2 = new Thread(runnable, "t2");t2.start();
}

可简写为：

public static void main(String[] args) {Runnable runnable = () -> log.info("runnable");Thread t2 = new Thread(runnable, "t2");t2.start();
}

3.FutureTask 获取返回参数

public static void main(String[] args) throws ExecutionException, InterruptedException {FutureTask<Integer> task = new FutureTask<>(new Callable<Integer>() {@Overridepublic Integer call() throws Exception {log.info("futuretask");return 1;}});Thread t3 = new Thread(task, "t3");t3.start();log.info("{}",task.get());
}

可简写为：

public static void main(String[] args) throws ExecutionException, InterruptedException {FutureTask<Integer> task = new FutureTask<>(() -> {log.info("futuretask");return 1;});Thread t3 = new Thread(task, "t3");t3.start();log.info("{}",task.get());
}