Java线程:如何使两个线程完全独立

Thread thread1 = new Thread(new Runnable() {
    public void run() {
        // 线程1的任务
    }
});

Thread thread2 = new Thread(new Runnable() {
    public void run() {
        // 线程2的任务
    }
});

thread1.start();
thread2.start();

Runnable runnable1 = new Runnable() {
    public void run() {
        // 线程1的任务
    }
};

Runnable runnable2 = new Runnable() {
    public void run() {
        // 线程2的任务
    }
};

Thread thread1 = new Thread(runnable1);
Thread thread2 = new Thread(runnable2);

thread1.start();
thread2.start();

ExecutorService executor = Executors.newFixedThreadPool(2);

executor.submit(new Runnable() {
    public void run() {
        // 线程1的任务
    }
});

executor.submit(new Runnable() {
    public void run() {
        // 线程2的任务
    }
});

executor.shutdown();