一个简单的多线程问题，欢迎指教！

Question

synchronized, wait(), notify()

Answer 1

java早期支持线程的suspend,resume和stop方法
但是现在已经废除了，所以需要自己写扩展类class CustomThread extends Thread 
{
    volatile boolean goFlag = true;
    
    CustomThread(String name) 
    {
        super(name);
        start(); 
    }    public void run() 
    {
        try {
            for(int loop_index = 0; loop_index <= 5; loop_index++) {
                System.out.println(Thread.currentThread().getName() + " here...");
                Thread.sleep(500);
                synchronized(this) {
                    while(!goFlag) {
                        wait();
                    }
                }
            }
        } catch (InterruptedException e) {}
    }    public void newSuspend() 
    {
        goFlag = false;
    }    synchronized public void newResume() 
    {
        goFlag = true;
        notify();
    }
}class suspend 
{
    public static void main(String args[]) 
    {
        CustomThread thread1 = new CustomThread("one");
        CustomThread thread2 = new CustomThread("two");        try {
            Thread.sleep(1000);
            System.out.println("Suspending thread one...");
            thread1.newSuspend();
            Thread.sleep(1000);
            System.out.println("Resuming thread one...");
            thread1.newResume();
        } catch (InterruptedException e) {}        try {
            thread1.join();
            thread2.join();
        } catch (InterruptedException e) {}
    }
}
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