Task: Write a program Using Recursion in Java Find Factorial of Number.

The source code of Java program to find factorial of a given number using recursion is:

/* Write a Java program to calculate factorial of a number. Use a recursive method. */ package recursivefactorial; /** * @author www.EasyCodeBook.com */ import java.util.Scanner; public class RecursiveFactorial { public static int factorial(int n) { if ( n == 0) return 1; else return n * factorial(n-1); } public static void main(String[] args) { int number; Scanner input = new Scanner(System.in); System.out.print("Enter a number:"); number = input.nextInt(); System.out.println("Factorial of "+number+" is "+factorial(number)); } }

The sample run and output of Recursive Factorial Method in Program is:

Enter a number:5

Factorial of 5 is 120

### The process of recursion in Java

to calculate factorial of 3 is shown in the following table:

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