Why header file is used in c?

582

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What are the main differences between primary key and unique key?

506

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Explain the difference between amazon ebs and s3?

138

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How can you create a virtual copy constructor?

587

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How hashmap increases its size in java?

495

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What is java server faces (jsf) - spring integration mechanism?

152

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What are vtable and vptr?

625

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What are activities of a sap pm?

504

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Explain the concept of keyframe.

1

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What are your salary requirements at McDonalds?

734

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What is the correlation in r?

82

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What an i/o filter in java programming?

608

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DHTML Is used for what?

1419

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what is rails caching?

537

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What does connection pooling mean ?

579

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