What are annotations in java?
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Which collections are thread safe in java?
Can we use synchronized block for primitives?
What is the diff. b/w Interfaces & Abstract class?
What are "methods" and "fields"?
Explain about wait() method?
What is final keyword in java? Give an example.
What is string array?
What are benefits of java?
What is null statement?
What are the three parts of a lambda expression?
How big is a 64 bit float?
I have a Arraylist object, it has duplecate values also. Now question is i want delete duplecate data in that objet with out using Set?