Help with numerical palindrome!!!

Question

im supposed to write a prog that reads in a positive integer, and if its a numerical palindrome, correct will be printed. otherwise, wrong will be printed. however, i cant use array and string methods. how else?
to note: numerical palindrome = a no. whose digits read the same forward and backward...for eg. 14741 => true but 14721 => false
help appreciated!!

Answer 1

geeez...cant compile the followinggg...why????     
public static void main(String[] args)
          int input,digit;
          boolean output;
          Scanner new = sc Scanner(System.in);
          System.out.println("Enter integer number: ");
          digit=sc.nextInt();
          while (input!=-1)
int n=0,newNum=0;
digit = countDigit(input);                                   //method to calculate number of digits for variable input
n = input;
while(n>0)
newNum += n%10*Math.pow(10,digit-1);
n/=10;
digit--;
if (newNum == input)
output = true;
else
output = false ;
System.out.println("Output:" +output);
System.out.print("\nEnter integer number:");
input = sc.nextInt();
System.out.println("<Program terminates>");
public static int countDigit(int n)
int numDigit=0;
while(n>0)
n/=10;
numDigit++;
return numDigit;     
}