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br />Q: What is the purpose of garbage collection in Java, and when is it used?

April 26, 2017br collection garbage Java purpose Used

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br />Q: What is the purpose of garbage collection in Java, and when is it used?

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A: The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to garbage collection when it becomes unreachable to the program in which it is used.

Q: Describe synchronization in respect to multithreading.
A: With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchonization, it is possible for one thread to modify a shared variable while another thread is in the process of using or updating same shared variable. This usually leads to significant errors.