Difference between Abstract Class and Interface

1. Overview

Clarifying differences between abstract class and interface.

2. Difference between Abstract Class and Interface

Features	Abstract Class	Interface
Type of methods	Abstract, non-abstract	Abstract, default, static methods
Type of variables	Final, non-final, static, non-static	Final, static
Implementation	Able to implement interfaces, able to extend another class	Only extends Interfaces
Inheritance	Able to be Extended using “extends”	Able to be Implemented using “implements”
Multiple	Able to extend another class & implement multiple interfaces	Able to extend multiple Interfaces
Accessibility	private, protected, etc.	Public

3. Practices

https://github.com/demyank88/DesignPattern/tree/master/src/main/java/kr/co/practice/Abstract