[FIXED] why interface used in java

Issue

Possible Duplicate:
why we need interface in java?

I refered the following link

prevoius post

can anyone explain any reason why we are using interface in java?

Other than

• multiple inheritance is possible with interfaces.
• polymorphism

Solution

Other than what you have mentioned, interfaces are a good way of exposing a set of functions (API) without divulging any information on their implementation.

By definition, when a class implements an Interface, it is agreeing to implementing a series of methods. This will allow any caller to use these methods without:

• The caller having to worry about how is the function implemented;
• Whoever wrote the function to worry about exposing internal logic.

Answered By - npinti

Answer Checked By - Clifford M. (PHPFixing Volunteer)