How to define an Interface?

Java Interview Questions and Answers (part 1)

(Continued from previous question...)

15. How to define an Interface?

In Java Interface defines the methods but does not implement them. Interface can include constants. A class that implements the interfaces is bound to implement all the methods defined in Interface.
Emaple of Interface:

public interface sampleInterface {
public void functionOne();

public long CONSTANT_ONE = 1000;
}

(Continued on next question...)

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