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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