Find numbers which are palindrome in both their decimal and octal representations. | Algorithms

Find numbers which are palindrome in both their decimal and octal representations. | Algorithms
Given a range of inte­gers, find all the num­bers which are palin­drome when they are rep­re­sented in Dec­i­mal Value( base 10) and in Octal value(base 8).
 public class DecimalOctalPalindrome {

 

    public String DecimalToOctal(int N) {

        String Oct = "";

        while (N > 0) {

            int x = N % 8;

            N = N / 8;

            Oct += x;

        }

        return Oct;

    }

 

    public boolean isPalindrome(String S) {

        int i = 0;

        int j = S.length() - 1;

        while (i < j) {

            if (S.charAt(i) != S.charAt(j)) {

                return false;

            }

            i++;

            j--;

        }

        return true;

    }

 

    public void findBothPalindrome(int start, int end) {

        for (int i = start; i <= end; i++) {

            String decimal = String.valueOf(i);

            if (isPalindrome(decimal)) {

                String Oct = DecimalToOctal(i);

                if (isPalindrome(Oct)) {

                    System.out.print(Oct + "  ");

                }

            }

        }

    }

 

    public static void main(String[] args) {

        DecimalOctalPalindrome d = new DecimalOctalPalindrome();

        d.findBothPalindrome(1, 2000);

    }

 

}

Read full article from Find numbers which are palindrome in both their decimal and octal representations. | Algorithms