Need help with a reverse number method

Question

hey all..
i have this program which should return the integer reversed ..
i have done this program using methods.. but the problem is if the
number endes with 0 when it reversed the output doesn't contain the number 0
for example:
input
123450
output
54321
where before the 5 there should be 0
    This program that reads an integer and then calls a method
      that receives an integer and returns the integer with its digits reversed.
      Main prints the resulting integer.
   import java.util.Scanner; // program uses class Scanner
    class Sh9q4
       // main method begins execution of Java application
       public static void main( String args[] )
      // create Scanner to obtain input from command window
         Scanner input = new Scanner( System.in );
         int number; // The number entered by the user
         System.out.println("Enter an integer"); // prompt for input
         number = input.nextInt(); // read the the integer
         reverse (number); // print the method reverse
      } // end method main
       public static void reverse ( int num )
         int lastDigit; // the last digit returned when reversed
         int reverse = 0;
         do
            lastDigit = num % 10;
            reverse = (reverse * 10) + lastDigit;
            num = num / 10;
         while (num > 0);
         System.out.println("The integer with its digits reversed " + reverse); // print the integer reversed
      }// end method reverse
   } // end class Sh9q4thanks for your help :)

Answer 1

If you need the leading zero to display, then you will have to do as Keith recommended and convert the input number to a String, then reverse that String and print it as a String.
A number is a number is a numerical value, and there is no difference between the value of 054321 and 54321 except when written as a literal, when the first is an octal, and the second a decimal, value.
If you are still confused, plug in these few lines of code and run them:String str = "012345";
int x = Integer.parseInt (str);
System.out.println(str);
System.out.println(x);db