6 Difference Between Abstract Class And Interface

Interface has only static and final variables. So broadly stating interface is actually a contract and when we talk about interface it applies that the methods do not have a body it is just a pattern. Interface supports multiple inheritance.

Interface can have only abstract methods.

6 difference between abstract class and interface. Abstract class can have final non final static and non static variables. Abstract class can provide the implementation of interface. An abstract class may contain non final variables. A class can use multiple interface.

Since java 8 it. However the interface offers full abstraction in java something that abstract classes cannot do. While abstract classes are basically the classes which are expensive to use. It is a collection of abstract methods and contains no concrete methods unlike abstract class.

2 abstract class doesnt support multiple inheritance. An interface is a blueprint used to implement a class. Difference between abstract class and interface 1 abstract class can have abstract and non abstract methods. This tutorial covers the difference between abstract class and interfaceas we go further with this tutorial we are going to learn the top 6 difference when we compare interface vs abstract class.

3 abstract class can have. The main difference between abstract class and interface is that the procedures of java interface are essentially abstract and cannot have applications. If many implementations are of the same kind and use common behavior then it is superior to use abstract class. Interface cant provide the implementation of abstract class.

A class can only use one abstract class. If many implementations only share methods then it is superior to use interface.