What are the ways in which a thread can enter the waiting state?
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What is the diff. b/w Interfaces & Abstract class?
Diff between Comparator and Comparable?
Is string pool garbage collected?
How to print nodes of a Binary tree?
What is equlas() and hashcode() contract in java? Where does it used?
How do you compare two strings lexicographically?
What is the alternate of 'Inheritance' ?
wht is customised exception?
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What happens if we override only equals?
What are sets in java?
What about member inner classes?
Which class has no duplicate elements?