When can you say a graph to be a tree?
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Name the class that used to read objects directly from a stream?
What is consumer interface?
What do you mean by aggregation?
Explain the importance of join() method in thread class?
How do you add an element to a set in java?
Java is Pass by Value or Pass by Reference?
why an outer class cannot be declared as private?
How do you declare an empty string?
Is space a string in java?
What is private static in java?
What is a local class in java?
What all methods are used to prevent thread execution ?