what is singleton class in java?
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What are methods?
What is entry in java?
why java is not supporting multiple inheritence?
Why do we declare a class static?
What is the role of the java.rmi.naming class?
how do you store phone numbers using java collections
What is difference between wait and notify in java?
Explain about java sdk?
What is functional interface in java example?
which one is more efficient int x; 1. if(x==null) 2.if(null==x) state which one either 1 or 2?
in a constructor what happen if u call super and this in the same class? i know that it is not possible to call both in the same one? if we call what will happen?
What classes of exceptions may be caught by a catch clause in java programming?