What is the difference between hashmap and hashtable? What is an interface?


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More Core Java Interview Questions

Give few difference between constructor and method?

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How to stop a thread in java? Explain about sleep () method in a thread?

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Explain the importance of finalize() method.

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Why is string buffer better than string ?

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if am have 100 threads(for ex:T1,T2---T100) how we give priority to these threads and how the system excute these threads

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Why use string handling in Java?

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What is the size of boolean variable?

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how to use crystal reports in java

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How can a class be accessed, If no access modifiers are declared?

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Why do we need singleton?

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What is the use of using enum to declare a constant?

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What is double parsedouble in java?

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