Power of given number

import java.util.Scanner;  
class Raj   
{  
  public static void main(String[] args) {
  int power;
  int num;
  int i = 1;
  int sum = 1;
   Scanner sc = new Scanner(System.in);
   System.out.print("Enter a number:");
    num = sc.nextInt();
    System.out.print("Enter power:");
    power = sc.nextInt();
    while(i<=power)
    {
      sum = sum*num;
      i++;
    }
     System.out.println(num+" to the power "+power+" is: "+sum);
   }
 }