What are methods?
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Name few "optional" classes introduced with java 8 ?
What is an immutable class?
What do you mean by composition in java?
What is hard code & soft code?
What is unicode with example?
What are the main features of java?
How many ways can you break a singleton class in java?
What are assertions in java?
Why do we need to override equals() and hascode() method of object class?
What is the purpose of lambda expressions?
What is t in generics in java?
Explain hashset and its features?