class Solution { public static void main(String[] args) { int test[] = {121, -121, 10}; for (int t : test) { System.out.println("isPalindrome(" + t + ") = " + isPalindrome(t)); } } public static boolean isPalindrome(int x) { StringBuilder sb = new StringBuilder(Integer.toString(x)); sb.reverse(); String reversed = sb.toString(); return Integer.toString(x).equals(reversed); } }