Does java map allow duplicates?
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How can you eliminate duplicates?
Why we use static and synchronized in method for single thread model example: public static synchronized add(){}
What is Exception handling in Java How do you handle run time errors please explain with an example
Can we use both this () and super () in a constructor?
Why string is popular hashmap key in java?
Why are strings immutable in Java?
What is Overriding and how can it be used?
Is ruby built on java?
What is a ternary operator in java?
what is the use of StringBuffer?
Explain the importance of throws keyword in java?
How many types of keywords are there?