What is a map? What are the implementations of map?
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JSP is by default thread safe or not? what is the meaning of isThreadSafe="true" and isThreadSafe="false". Explain it? Thanks, Seenu
What is java lang string?
What is the multi-catch block in java?
what is heap memory?
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What are the types of exceptions?
What is Java exception handling?
Define class?
Implement 2 stacks with just 1 array. The stack routines must not indicate overflow unless every slot in array is used.
Why string is popular hashmap key in java?
Can we use different return types for methods when overridden?
Why is a constant variable important?
What is the Set interface?