How does regex work?


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More Core Java Interview Questions

Why wait and notify methods are declared in object class?

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What happens when a class is made static like if a field or member is made static it becomes class variable and is shared by all the object of the class?

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Why does it take so much time to access an applet having swing components the first time?

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Is java platform independent?

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What’s the difference between callable and runnable?

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Explain the difference between map and flatmap stream operation?

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What is %d in printf?

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How can we create a synchronized collection from given collection?

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Does isempty check for null?

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What is run time polymorphism?

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What is an empirical question?

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Why do we need singleton?

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