Program to multiply two numbers using function in C#

Program to multiply two numbers using function in C#

In this tutorial, we will discuss the concept of Program to multiply two numbers using function in C#

In this topic, we are going to learn how to write a program for multiplying two numbers using user defined-function in C# programming language

 

Multiplication of two numbers in C#

Multiplication of two numbers using variable

In this program, the user declare and initialize two integer variables num1 and num2. Then two numbers are multiplied using multiplication(*) operator and assigned the result to third (mul) variable

Program 1

//Write a program calculate multiplication of two numbers using function
using System; 
public class Mul_Two_Num_Fun { //class definition
public static int mul_Num(int num1,int num2) { //user defined function with argument 
int mul; 
mul=num1*num2; //Calculate product of given numbers
return mul; 
    
} public static void Main() { 
    int num1=45; //Declare and initialize variable 
    int num2=50; 
    Console.WriteLine("The multiplication of {0} and {1} is: {2}: ",num1,num2,mul_Num(num1,num2)); } }
 //Display result on the screen

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

The multiplication of 45 and 50 is: 2250:

 

Multiplication of two numbers – Entered by user

In this program, the user declare and initialize two integer variables n1 and n2. Then two numbers are multiplied using multiplication(*) operator and assigned the result to third (mulRes) variable

Program 2

// Write a program calculate multiplication of two numbers using function 
using System; public class Mul_Two_Num_Fun { 
    public static int mul_Num(int num1, int num2) {
        //function definition 
    int mulRes; //declare integer variable 
    mulRes=num1*num2; //calculate multiplication
    return mulRes; 
        
    }
    public static void Main() { 
        Console.Write("Enter number for n1: ");
        int n1=Convert.ToInt32(Console.ReadLine()); //get input from the user for n1 
        Console.Write("Enter number for n2: "); 
        int n2=Convert.ToInt32(Console.ReadLine()); //get input from the user for n2
        Console.WriteLine("The multiplication of {0} and {1} is: {2}: ",n1,n2,mul_Num(n1,n2)); } } 
        //display result on the screen

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

Enter number for n1: 12
Enter number for n2: 13
The multiplication of 12 and 13 is: 156:

 

In the above program, two integer values 12,13 (get input from the user) are stored in n1 and n2. Then n1 and n2 are multiplied using the multiplication(*) operator.

Then the result is stored in another variable mulRes.

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

 

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