Interface Vs Abstract chapter 2

Interface Vs Abstract

Implementation :

1.Interface is a collection of DataMembers and Member Functions .But We cannot implement that DataMember and Member Functions .
1.Abstract class we can implement it .

Modifiers :
2. In Default interface contains  public modifiers
2.But in abstract we can use private ,public  modifiers

Inherit :
3.In interface  we can inherit more than  one interface in  a class .
3. In abstract class we can inherit only one abstract class .

Methods;

4.  All methods must be implemented ,otherwise we got an error message.
4. Need not be implement all   decalre methods .