public class SymmetryTester public static void mainString args String s1 = 123321; String s2 = 45654; String s3 = abcba; String s4 = 12345; String s5 = abc;

public class SymmetryTester { public static void main(String[] args) { String s1 = "123321"; String s2 = "45654"; String s3 = "abcba"; String s4 = "12345"; String s5 = "abc";

    System.out.println(isSymmetrical(s1)); // true
    System.out.println(isSymmetrical(s2)); // true
    System.out.println(isSymmetrical(s3)); // true
    System.out.println(isSymmetrical(s4)); // false
    System.out.println(isSymmetrical(s5)); // false
}

public static boolean isSymmetrical(String s) {
    int len = s.length();
    for (int i = 0; i < len / 2; i++) {
        if (s.charAt(i) != s.charAt(len - i - 1)) {
            return false;
        }
    }
    return true;
}