Answer Posted / vikas

HashMap is not synchronised, nor thread safe.

What is contract between hashcode and equal method?

1017

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What are the major advantages of internal iteration over external iteration?

1030

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What are anonymous inner classes?

999

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Is integer immutable in java?

966

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What do you understand by abstract classes?

1058

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What methodology can be utilized to link to a database?

943

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Are generics important java?

955

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What is difference in between java class and bean?

1071

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What is data type in java?

888

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What are the two basic ways in which classes that can be run as threads may be defined?

1053

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How do I get 64 bit java?

1071

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What is an object in java?

1012

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What is hash code collision?

1033

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Describe what happens when an object is created in java ?

980

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What is the difference between a field variable and a local variable?

1084

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