What is console based application in java?
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What is the purpose of a parameter?
How do you add an element to a hashset in java?
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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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Explain the polymorphism principle?
Where are local variables stored?
What is the difference between size and length in java?
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