What is a lock or purpose of locks in java?


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More Core Java Interview Questions

Is char a method in java?

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What do you mean by buffering?

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Ducking is automatic in checked exception?True or false

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why there are multiple catches for a try block.don't tell me that there can be multiple exception of a code segment that's why.tell me the real fact behind this.

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How do I remove a character from a string in java?

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Where will it be used?

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Every class extends object but why it is not possible for every object to invoke clone() method. ideally protected methods should be accessible from sub classes. isn't it?

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How does singleton class work?

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How many types of string data types are there?

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Why is logger singleton?

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What are the java ide’s?

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What is the purpose of the system class in java?

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