How threads communicate between each other?

Java Interview Questions and Answers (part 4)

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14. How threads communicate between each other?

This is very must know question for all the interviewees, you will most probably face this question in almost every time you go for interview.
Threads can communicate with each other by using wait(), notify() and notifyAll() methods.

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Other Interview Questions

• Mention some guidelines to write thread safe code, most important point we must take care of in multithreading programs?
• What is life cycle of Thread, explain thread states? (
• What will happen if we override start method?
• Suppose you have thread and it is in static synchronized method and now can thread enter other non static synchronized method from that method?
• Can you again start Thread?
• What is difference between starting thread with run() and start() method?
• What will happen if we don’t override run method?
• Does thread leaves object lock when sleep() method is called?
• When threads are not lightweight process in java?
• Output question 14.
• More...