What are the different thread states in Java?

Can you explain the different thread states in Java?

Sure! In Java, a thread can be in one of several states: NEW, RUNNABLE, BLOCKED, WAITING, TIMED_WAITING, and TERMINATED.

What does each state mean?

• NEW: The thread is created but not yet started.
• RUNNABLE: The thread is executing or ready to execute.
• BLOCKED: The thread is waiting for a monitor lock.
• WAITING: The thread is waiting indefinitely for another thread to perform a particular action.
• TIMED_WAITING: The thread is waiting for another thread to perform an action for a specified waiting time.
• TERMINATED: The thread has completed its execution.

How do I transition a thread between these states?

You can transition threads using methods like start(), sleep(), wait(), notify(), and join(). Each method affects the thread's state accordingly.

Can you give an example of a thread in the BLOCKED state?

Certainly! If one thread holds a lock on an object and another thread tries to acquire the same lock, the second thread will enter the BLOCKED state until the lock is released.