Answer Posted / niranjanravi

by polymorphism,inheritance,abstraction,encapsulation

What is the abstract class?

593

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Does collectionutils isempty check for null?

803

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Should you use singleton pattern?

517

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Give some features of interface?

580

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What is gc()?

573

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Can we call virtual funciton in a constructor ?

1768

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What is unsigned char?

610

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Is integer a class?

560

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Can list be final in java?

485

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Which collection is best for sorting in java?

685

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How do you get the length of a string in java?

516

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What does it mean that strings are immutable?

566

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What is proper subset?

531

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Which class contains a method: cloneable or object?

530

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What is the nested interface?

593

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