wait executing block of code for thread dies

all i want开发者_如何学Python block of code wait for another thread to die where this thread not event thread

I believe this is what Thread.join() method is for:

public final void join() throws InterruptedException

Waits for this thread to die.

From what I've been able to understand, it looks like you want a block of code to be executed after some thread dies, but you don't want Thread.join() to block the current thread? Then execute the whole thing in a yet another thread:

new Thread() {
  public void run() {
    someThread.join(); // someThread is the thread that you're waiting to die
    // your block of code
  }
}.start();

This will execute the code after someThread dies, but won't suspend the current thread.

java.util.concurrent.CountDownLatch can be used here.