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Difference between Abstract class and interface in java

Royce Roy221015-Apr-2015

What is the difference between abstract classes and interfaces in java,both look very similar to me

Updated on 15-Apr-2015

Can you answer this question?

Answer

15-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

1)Interface have only abstract methods.

2)An interface cannot have instance variables

3)Interface cannot have constructor.

4)Interface cannot have static methods.

5)You can implement multiple interfaces.