What is the difference between && and & in java?
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What is r in java?
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What is currentthread()?
What is pre increment and post increment in java?
what is multitherading
Which class cannot be a subclass in java?
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 are keywords in programming?
What JNDI(Java Naming and Directory Interface) provides?
explain the collection in java
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