How hashmap works in java?
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What is the % operator?
What is static block?
explain about method overloading and method overriding with difficult examples
What are the benefits of immutable objects?
What are decalarations?
Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?
Explain the public class modifier?
What are invisible components?.
Why call by value prevents parameter value change?
What are different access specifiers in java? Explain
Difference between prefix and postfix forms of the ++operator?
What is the base class in java from which all classes are derived?