What is Object in C#

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What is an Object in C#

Introduction

• An object is a software bundle of variables and related methods.

• Objects are related to real life scenario

• Class is the general thing and object is the specialization of general thing

• Objects are instance of classes.

• Declaration of an Object in C#.NET

• ClassName objectName=new ClassName();

• E.g.: Person objPerson= new Person();

An object is characterized by concepts like:

• Attribute

• Behavior

• Identity

1. What is an Attribute?

• Attributes define the characteristics of a class.

• The set of values of an attribute of a particular object is called its state.

• In Class Program attribute can be a string or it can be a integer

Example of Attribute:

2. What is a Behavior?

• Every object has behavior

• In C#, behaviors of objects are written in methods.

• If a behavior of an object needs to be performed, then the corresponding method is called.

Example of behavior:

3. What is an Identity?

• Each time an object is created the object identity is been defined.

• This identity is usually created using an identifier which is derived from the type of item

Example of Identity:

Source Code

using System;

class SalaryCheque

{

public string _EmployeeName;

public int _Amount;

public string EmployeeName(string name)

{

_EmployeeName = name;

return _EmployeeName;

}

public void EmployeeType(int type)

{

if (type == 1)

{

this._Amount = 50000;

}

if (type == 2)

{

this._Amount = 27000;

}

if (type == 3)

{

this._Amount = 5000;

}

}

public void DisplayCheque()

{

Console.WriteLine("This Month Salary for " + _EmployeeName + " is " + _Amount);

}

}

class SalaryChequeDisplay

{

static void Main()

{

string _name;

int _employeeType;

Console.WriteLine("Please Enter Employee Name");

_name = Console.ReadLine();

Console.WriteLine("Enter Employee type 1 for Manager 2 for Assistant Manager 3 for Worker");

_employeeType = Convert.ToInt16(Console.ReadLine());

SalaryCheque objsal = new SalaryCheque();

objsal.EmployeeName(_name);

objsal.EmployeeType(_employeeType);

objsal.DisplayCheque();

}

}