What is java flatmap?

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What does persist mean in java?

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What are the rules regarding quotation marks?

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Which class is the superclass of every class?

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what is the function of OS

3 Answers  

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suppose we have one String s="india is my country"; now we get the o/p "like country my is India". what is the logic?

2 Answers  

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What is maven in java?

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Can optional be null?

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How do I open my java console?

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Why Java is a platform independent language?Explain byte code and JVM

8 Answers   HCL,

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what is meant by Encapsulation?Explain with an example?

4 Answers  

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I am trying to create a new universal user group. Why can't i? : java security

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