What is the difference between thread.sleep() and object.wait() in Java multithreading?

1 Answers
Answered by suresh

What is the difference between thread.sleep() and object.wait() in Java multithreading?

When it comes to Java multithreading, understanding the difference between thread.sleep() and object.wait() is important:

  • thread.sleep(): This method is a static method that belongs to the Thread class. When a thread calls thread.sleep(), it pauses for a specified amount of time, allowing other threads to execute. The thread.sleep() method does not release the lock it holds.
  • object.wait(): This method is an instance method that belongs to the Object class. When a thread calls object.wait(), it pauses and releases the lock it holds on the object. The thread enters the waiting state until another thread notifies it using the notify() or notifyAll() method.

Therefore, the key difference is that thread.sleep() is used to introduce a delay in execution without releasing the lock, while object.wait() is used for inter-thread communication and collaboration by releasing the lock and entering a waiting state.

Answer for Question: What is the difference between thread.sleep() and object.wait() in Java multithreading?