Answer Posted / surender dagar

oOP concepts are mainly 4 parts
such as
1.Abstraction
2.Encapsulation
3.Inheritence
4.Polymorphism

Explain what pure virtual function is?

598

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What is the main purpose of serialization in java?

530

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How variables are declared?

517

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What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?

625

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What is difference between module and function?

538

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Can we override final method?

569

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What is singleton math?

577

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What is method in java with example?

489

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Can a class be private?

512

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Write a function to find out longest palindrome in a given string?

592

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take an array with -ve and +ve value both.find out the nearest value of 0(zero).if two values are same like(-2 and +2)then extract +2 is nearest of 0(zero).

1531

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When should I use stringbuffer?

571

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What is immutable state?

508

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Is java free for commercial?

491

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Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

549

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