• Business
  • Finance
  • Banking
  • Education
  • General
  • Law
  • Science
  • IT
  • English

Key Differences

Know the Differences & Comparisons

Difference Between Interface and Class

Last updated on June 8, 2019 by Surbhi S

interface and classClass

Class is a user-defined data type that allows the grouping of data members, methods, properties, and events. A class is nothing but a blueprint that defines data and behaviour. Objects are instances of the class. In C#, classes are defined using the ‘class’ keyword followed by the class name that contains the body of a class surrounded by curly braces. Every class has a constructor that has the same name as the class and called automatically at the time of instantiating a class.

Example of a class in C#
class

Interface

An Interface contains only the signature of members: methods, properties, events or indexers. It does not contain the definition of these members. It is up to the class which is deriving this interface to write the definition of these members. It is mandatory for a class to implement all the members of the interface.

Example of Interface in C#:
interface
In the above example, class CalculatorImplementer is implementing method add() and subtract() declared in the Calculate interface.

Difference Between Interface and Class

  1. A class can contain data members and methods with the complete definition. An interface contains the only signature of members.
  2. A class can only be inherited from a single class but can be inherited from more than one interfaces.
  3. Interfaces are always implemented whereas classes are extended.
  4. Classes represent the “real object” and do all the work. Interfaces allow you to create a program that will manipulate the class in a predefined way.

Related Differences

  • Difference Between Profit Maximization and Wealth Maximization
  • Difference Between Perfect Competition and Monopolistic Competition
  • Difference Between Joint Product and By-Product
  • Difference Between Adjective and Adverb
  • Difference Between Over Subscription and Under Subscription

You Might Also Like:

abstract class vs interfaceDifference Between Abstract class and Interface in C# method overloading vs overridingDifference Between Method Overloading and Overriding Push vs Pull strategyDifference Between Push and Pull Strategy qualitative vs quantitative dataDifference Between Qualitative and Quantitative Data descriptive vs inferential statisticsDifference Between Descriptive and Inferential Statistics histograph vs bar graphDifference Between Histogram and Bar Graph

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Top 5 Differences

  • Difference Between PERT and CPM
  • Difference Between Micro and Macro Economics
  • Difference Between Developed Countries and Developing Countries
  • Difference Between Management and Administration
  • Difference Between Qualitative and Quantitative Research

Related Differences

  • Difference Between Profit Maximization and Wealth Maximization
  • Difference Between Perfect Competition and Monopolistic Competition
  • Difference Between Joint Product and By-Product
  • Difference Between Adjective and Adverb
  • Difference Between Over Subscription and Under Subscription



New Additions

  • Difference Between Society and Community
  • Difference Between Sourcing and Procurement
  • Difference Between National Income and Per Capita Income
  • Difference Between Departmental Store and Multiple Shops
  • Difference Between Thesis and Research Paper
  • Difference Between MBO and MBE
  • Difference Between Receipt and Payment Account and Income and Expenditure Account
  • Difference Between Stock Dividend and Stock Split
  • Difference Between FOB and CIF Contracts
  • Difference Between Verification and Valuation
fb-follow youtube follow

Copyright © 2023 · Key Differences · Contact Us · About Us · Privacy