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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What about member inner classes?

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How do you represent a space in regex java?

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What is the static keyword?

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Which characters are allowed to use as the second character of an identifier, and which characters are not allowed?

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What is :: operator in java?

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How do you compare two strings lexicographically?

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Is 0 a real number?

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What is "this" keyword in java? Explain

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Any one can explain how the inerface uses in java. give with example.

1 Answers   IBM,

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What are the different types of data structures in java?

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What is remote method invocation (rmi)?

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