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Explain about interthread communication and how it takes place in java?
What is string in java?
Can we sort hashset in java?
What do you mean by constant time complexity?
What is double checked locking in singleton?
Why we used vector class?
What does sprintf return?
Can a class have multiple subclasses?
How is string stored in java?
Write the algorithm to check the number non-leaf nodes in a tree.
What are nested classes in java?
extending thread class or implementing runnable interface. Which is better? : Java thread
Why for each loop is used?
What is the benefit of lambda expressions?
What does bitwise or mean?
