Merge pull request namishkhanna#191 from drpipy/patch-3

Create factorial.java

Author: namishkhanna

FactorialDemo.java

@@ -0,0 +1,19 @@
+import java.util.Scanner;
+class FactorialDemo{
+   public static void main(String args[]){
+      Scanner scanner = new Scanner(System.in);
+      System.out.println("Enter the number:");
+      int num = scanner.nextInt();    
+      int factorial = fact(num);
+      System.out.println("Factorial of entered number is: "+factorial);
+   }
+   static int fact(int n)
+   {
+       int output;
+       if(n==1){
+         return 1;
+       }
+       output = fact(n-1)* n;
+       return output;
+   }
+}