What is a war file?
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What is method overloading and method overriding?
What will happen inside init() in servlet. my interviewer asked servlet lifecycle. i said "once servlet is loaded in to memory init() will be called which performs servlet initialization " . Again interview asked what values will be initialized . what is difference between init() and init(ServletConfig config).
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What is final class?
What are different types of states exist for a thread?
Difference between start() and run() method of thread class?
Explain the protected field modifier?
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Can I declare class as static or private?
Is 0 an even number?
What is sortedmap in java?
Write a program to check for a prime number in java?