Answer Posted / ravikiran(aptech mumbai)

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Can singleton class be inherited in java?

1008

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How many decimal digits is 64 bit?

932

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How many threads can I run java?

1120

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Is simpledateformat safe to use in the multithreaded program?

997

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What is serialversionuid?

1092

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Is it possible to instantiate the abstract class?

956

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What are the different types of inner classes?

1038

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What do you mean by default constructor in java?

1074

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What is a marker interface?

1165

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Is zero a natural number?

1038

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What is the difference between the direct buffer and non-direct buffer in java?

1033

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What invokes a thread's run() method in java programming?

1195

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What is preflight request?

1021

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How many bits are used to represent unicode, ascii, utf-16, and utf-8 characters in java programming?

1017

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Does anyone still use java?

1119

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