What is a instance variable?

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What is the difference between path and classpath variables?

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what is the logic inside any default constuctor?

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What is Distributed Application and what is its usage?

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Define an abstract class with reference to java.

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is it mandatory to deaclare all variables public static fianl in interfaces?if i declare like in the below program, public interface A { public static final int I=0; int j=0; } in interface A,what is the difference between I,j?

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How applets will communicate with each other?

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Explain Linked HashSet

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How the interruptible method gets implemented?

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Explain about the performance aspects of core java?

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What do you mean by default constructor in java?

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Is it possible to declare abstract class as final?What happens if we do so?

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