Added Java Program to find Factorial

Author: AbhinandanAdhikari

Factorial.java

@@ -0,0 +1,22 @@
+import java.util.*;
+public class Factorial 
+{
+    public static int fact(int n)
+    {
+        int fact=1;
+        for(int i=n;i>=1;i--)
+        {
+            fact=fact*i;
+        }
+        return fact;
+    }
+    
+    public static void main(String arg[])
+    {
+        Scanner in = new Scanner(System.in);
+        System.out.println("Enter the number:");
+        int n = in.nextInt();
+        int f = fact(n);
+        System.out.println("Factorial of "+n+" is "+f);
+    }
+}