What is double checked locking in singleton?


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More Core Java Interview Questions

How many types of array are there?

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What are different types of control structures?

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What are green threads in java?

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List down the methods and interfaces of collection class in java.

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What is outofmemoryerror in java?

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Which oo concept is achieved by using overloading and overriding?

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I have a Person object with 5 variables and I want to store them in a file called Person.txt. What should I do?

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Explain differences between checked and unchecked exceptions in java?

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Can we have multiple catch block for a try block?

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