How to subtract two numbers using function in C#

How to subtract two numbers using function in C#

In this article, we will discuss the concept of How to subtract two numbers using function in C#

In this post, we are going to learn how to write a program to subtract two numbers using user-defined function in C# language

Code to subtraction of two numbers in C#

Subtraction of two numbers using function in C#

In this code, we are going to learn how to write a program to subtract two numbers using variables in C# programming language

Program 1

//Write a program calculate subtraction of two numbers using function
using System; 
public class Dif_Two_Num_Fun { //class declaration
    public static int sub_Num(int num1,int num2) { //user defined function with parameter
        int diff; //define a variable for assign result
        diff=num1-num2; //Calculate subtraction of given numbers
        return diff; //return to main method
        
    } public static void Main() { //main method
        int num1=300; //Declare and initialize variable
        int num2=150;  //Declare and initialize variable
        Console.WriteLine("The difference of {0} and {1} is: {2}: ",num1,num2,sub_Num(num1,num2)); } }
        //Display result on the screen

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

The difference of 300 and 150 is: 150:

 

Subtraction of two numbers in C# – Entered by user

In this example, the user is asked to enter two integer numbers. Then the subtraction of the these two integers is calculated and displayed on the screen in C#

Program 2

using System; 
public class Sub_Two_Num_Fun { //class declaration
    public static int sub_Num(int fNum, int sNum) { //function definition with parameter
        int difRes; //declare integer variable
        difRes=fNum-sNum; //calculate difference
        return difRes; //return to main method
        
    }
    public static void Main() { 
        Console.Write("Enter number for num1: "); 
        //ask input from the user
    int num1=Convert.ToInt32(Console.ReadLine()); 
    //reading input from the user for num1
    Console.Write("Enter number for num2: "); 
    //ask input from the user
    int num2=Convert.ToInt32(Console.ReadLine()); 
     //reading input from the user for num2
    Console.WriteLine("The difference of {0} and {1} is: {2}: ",num1,num2,sub_Num(num1,num2)); } }
    //display result on the screen

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

Enter number for num1: 567
Enter number for num2: 345
The difference of 567 and 345 is: 222:

 

In this code, the user asked to enter two integers and the given integers are stored in variables num1 and num2 respectively.

Then these two numbers are subtracted using the minus(-) operator and the result is stored in the difRes variable.

Finally the display statement is used to print the subtraction of numbers

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