Find the product of two numbers using recursion in Java

Find the product of two numbers using recursion in Java

In this tutorial, we will discuss the concept of  Find the product of two numbers in Java using recursion

In this article, we are going to learn  how to Find the product of two numbers using recursion in the Java programming language

Program

This program allows the entry of two digits from the user and to find the product of two numbers using the recursive function in Java programming language.

import java.util.Scanner;
class ProductOfTwoNumRec{
public static void main(String args[]){
    int sum=0;  //variable declaration
    Scanner scan=new Scanner(System.in);
//create a scanner object for input

System.out.print("Enter two numbers to calculate product: ");
int num1=scan.nextInt();
int num2=scan.nextInt();

int result=product(num1,num2);//assign the output to variable result
    //function call
     System.out.print("Product of "+num1+" and "+num2+" is :"+result);
   
}

static int product(int a, int b)
{
    if(a<b)
    {
        return product(b,a);
    }
    else if(b!=0){
            return (a+product(a,b-1));

    }
    else{
        return 0;
    }
}
}

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

Enter two numbers two calculate product: 12
23
Product of 12 and 23 is: 276

Method

• Declare three variables num1, num2 and result as “int” type.
• Receive two numbers from user and store variable as num1 and num2 respectively.
• Call the function and assign the output value to variable result.
• Product() function is used to Calculate  the product of of two numbers.
• Display the result on the screen.

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