Java Threads Question:
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What are three ways in which a thread can enter the waiting state?
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What are different ways in which a thread can enter the waiting state?

Answer:

A thread can enter the waiting state by the following ways:
1. Invoking its sleep() method,
2. By blocking on I/O
3. By unsuccessfully attempting to acquire an object's lock
4. By invoking an object's wait() method.
5. It can also enter the waiting state by invoking its (deprecated) suspend() method.

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