Subtraction of two numbers in C# – Example program

In this tutorial, we will discuss the concept of Subtraction of two numbers in C# – Example program

In this topic, we are going to learn how to subtract two integer numbers using minus operator in C# programming language

Subtraction of two numbers in C#

Subtraction of two numbers using variable

In this program, the user declare and initialize two integer variables num1 and num2. Then two numbers are subtracted second number(num2) from first number(num1) using minus operator and then assigned the result to third (sub) variable

Program 1

// Calculate subtraction of two integers in C# program 
using System;
public class Subtraction { 
    public static void Main(string[] args) {
        int num1=315; //Declaring and initializing first variable 
        int num2=130; //Declaring and initializing second variable 
        int sub=num1-num2; //subtracting two numbers and assign the value to third variable
        Console.WriteLine ("The subtraction of two numbers: "+sub); 
//Display result on the screen        
    } 
    
}

When the above code is executed, it produces the following result

The subtraction of two numbers: 185

Subtraction of two numbers using user input

Program 2

In this program, the user is asked to enter two integer values. These two integers are stored in variables n1 and n2 respectively .Then two numbers are subtracted using – operator and the result is stored in the sub variable. finally the result is displayed on the screen

// Calculate subtraction of two integers in C# program 
using System; 
public class Sub_Of_Two_Num { 
    public static void Main(string[] args) { 
        int n1, n2, sub; 
        Console.WriteLine("Find subtraction of two numbers: ");
        Console.Write("Input number to n1: ");
        n1=Convert.ToInt32(Console.ReadLine()); 
        Console.Write("Input number to n2: "); 
        n2=Convert.ToInt32(Console.ReadLine()); 
        sub=n1-n2; Console.WriteLine ("The subtraction of given two integers: "+sub);
        Console.ReadKey(); } }

When the above code is executed, it produces the following result

Find subtraction of two numbers:
Input number to n1: 890
Input number to n2: 789
The subtraction of given two integers: 101

In the above program, two integer values 890,789 (get input from the user) are stored in n1 and n2. Then n1 and n2 are subtracted using the minus(-) operator.

Then the result is stored in another variable sub.

Finally, the result is displayed on the screen using display statements in C#

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