Does hashset allow duplicates in java?
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What is lambda in java?
Can we create an object of private class?
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Is hashset sorted in java?
WHAT IS MARKER INTERFACE,AND NO METHODS IS NOT THERE ON THAT INTERFACE THEN WHY WE USED IN JAVA?
How to create an instance of a class without using "new" operator? Plz help me out properly.Thank u.
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What happens if we don’t define serial version uid?
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Can abstract class have private constructor?