Update Calculate power of a number

Calculate power of a number

@@ -10,3 +10,11 @@ class HelloWorld {
        System.out.println("result is "+result);
     }
 }
+
+//calculating power using pow() method
+
+public static void main(String[] args) {
+       int base = 2, exponent = 4;
+       double result = Math.pow(base,exponent);
+       System.out.println("result is "+result);
+}