How does arraylist work in java?
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Justify your answer that you can't define a method inside another method in java, if you can then how?
Is void a data type in java?
How do singleton patterns work?
What are autoboxing and unboxing? When does it occur?
What is the difference between a window and a frame in java programming?
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printstream class method println() is calling using System class and its static object out .how it is explain any one in detail with example ?
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What is a boolean field?