public class Main { public static void main(String[] args) { String myNumber = "13"; Integer number = Integer.parseInt(myNumber); System.out.println("My lucky number is: " + number); number = Integer.parseInt(myNumber, 16); System.out.println("My lucky number is: " + number); number = Integer.parseInt(myNumber, 8); System.out.println("My lucky number is: " + number); } }