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Difference between Abstract classes and Interfaces

Royce Roy201321-Apr-2015

Difference between Abstract classes and Interfaces in Java

Updated on 21-Apr-2015

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Answer

21-Apr-2015

Abstract classes

1)An abstract class can have method body (non-abstract methods).

2)An abstract class can have instance variables.

3)An abstract class can have constructor.

4)An abstract class can have static methods.

5)You can extends one abstract class

Interfaces

Interface have only abstract methods.

An interface cannot have instance variables.

Interface cannot have constructor.

Interface cannot have static methods.

You can implement multiple interfaces.