threads question

[sandor]

I am trying to learn how to use threads to run a couple of methods repeatedly. This is my code and I get a compilation error when I try to run it. I am confused. help.

Code:

 public void doA() {
        System.out.println("now I am doing A");
    }
    public void doB() {
        System.out.println("now I am doing B");
    }
    public void sleep() {
        System.out.println( " Zzzzzzz...");
    }

    public void live() {
        new Thread() {
            public void run() {
                while (true) {
                    doA();
                    doB();
                    sleep();
                }
            }
        }.start();
    }

[derrickD]

Threads are hard. I think that the sleep method that this anonymous class is using is its sleep() method which needs a parameter passed in. I do not think it is using the sleep method you created. I changed your method name to doze() and changed it in the anonymous class and it ran , but of course it never stopped running. Somewhere you need to give it a time to stop, unless of course it is something you want to run forever, which, I supposed, you might

[pegitha]

You could also use the sleep(long) method instead of yours.

Code:

long interim=1000;
public void live() {
		
	new Thread()
	{
		public void run()
		{
		while (true)
		{
			doA();
			doB();
		try
		{
			sleep(interim);
		} catch (InterruptedException e)
		{
			e.printStackTrace();
		}
		}
		}
         }.start();
		
    }

[sandor]

Thanks to both of you.

[Maris]

can anyone help me?I have one question i.e what is the difference between start() and run.we can run a thread by thread.run() then why we need start().

[ingle.anil]

thread.start() -- concurrent execution
1)create new thread and
2)then calls run() method.

thread.run() -- sequential execution
1)calls run() method.
- no new Thread creation.

[rorootot]

One more question.
Why in front of start () is put dot, like that ''.start()''?
Does in threads is obligatory to do like that?

[Norm]

That is the syntax for calling an object's method: <object-ref>.<method>...