In this chapter you will learn:
- What is operator in C#?
 - What is Arithmetic Operator?
 - How to use Arithmetic operator in program?
 - What is Escape Character and how to use it?
 
Operators are a very useful thing in computing value. While writing a program, you need various types of operators to calculate the value. These operators are categorized as different categories in C sharp tutorial that performs specific task ex. The C# arithmetic operator performs the basic calculation as add, subtraction, multiplication, division, and modulus whereas other operators perform a different kind of task. You will learn one by one all these operators in few next chapters.
Arithmetic Operators are used for basic mathematical calculation in C# programming. The list of Arithmetic Operators is given below:
Arithmetic Operators:
| Operator | Description | Examples | 
|---|---|---|
| + | Add numbers | X=num1+num2 | 
| - | Subtract numbers | X=num1-num2 | 
| * | Multiply numbers | X=num1*num2 | 
| / | Divide numbers | X=num1/num2 | 
| % | Divide two numbers and returns reminder | X=22%10 then X will be X=2 | 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Arithmetic_Operators
{
    class Program
    {
        static void Main(string[] args)
        {
            int num1, num2;
            int add, sub, mul;
            float div;
            //Accepting Values from users
            Console.Write("Enter first number\t\t");
            num1 = Convert.ToInt32(Console.ReadLine());
            Console.Write("\n\nEnter second number\t\t");
            num2 = Convert.ToInt32(Console.ReadLine());
            //Processing Values
            //Used + operator for adding values
            add = num1 + num2;
            //Used - operator for subtracting values
            sub = num1 - num2;
            //Used * operator for multiplying values
            mul = num1 * num2;
            //Used / operator for dividing values
            div = (float)num1 / num2;
            //Displaying Output
            Console.WriteLine("\n\n=====================\n");
            Console.WriteLine("Addition\t\t{0}", add);
            Console.WriteLine("Subtraction\t\t{0}", sub);
            Console.WriteLine("Multiplication\t\t{0}", mul);
            Console.WriteLine("Division\t\t{0}", div);
            Console.WriteLine("\n=======================\n");
            Console.ReadLine();
        }
    }
}
Output
Enter first number 15
Enter second number 12
=====================
Addition 27
Subtraction 3
Multiplication 180
Division 1.25
=======================
__
List of Escape Characters:
| Escape Characters | Description | 
|---|---|
| \’ | Used for single quotation mark | 
| \" | Used for double quotation mark | 
| \\ | Used for backslash | 
| \0 | Null | 
| \a | Audible alert | 
| \b | Used for backspace | 
| \f | Used for form feed | 
| \n | Used for line break | 
| \r | Used for Carriage return | 
| \t | Used for horizontal tab | 
| \v | Used for vertical tab | 
 In this chapter you will learn: