What is array length in java?
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how can u create the object with out new operator
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How is final different from finally and finalize?
What is a class object?
What is "Java Native Interface" and how to use it?
Explain the concept of polymorphism with examples?
What is object class in java?
question on Thread synchronization
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List methods available in Java Queue interface
7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
Why we used vector class?