What is collection class in java? List down its methods and interfaces.
What is the use of string and stringbuffer?
How to instantiate member inner class?
Why do we need array in java?
What is the intersection and union methods?
Why inputstreamreader is used in java?
Can static method access instance variables ?
What is the benefit of lambda expressions?
explain different ways of using thread? : Java thread
Why singleton pattern is better than creating singleton class with static instance?
What is a prefix function.write down a code to compute prefix function.
Can we declare a static variable inside a method?
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What is basic syntax?
What are the differences between the constructors and methods?