Palindrom checker

palindromChecker.java

import java.util.stream.IntStream;

class Scratch {
    public static boolean palindromeChecker(String s) {
        String normalizedString = s.trim().toLowerCase();

        return IntStream.range(0, normalizedString.length() / 2)
                .allMatch(i ->
                        normalizedString.charAt(i) ==
                                normalizedString.charAt(normalizedString.length() - i - 1));
    }


    public static void main(String[] args) {
        // Palindrome
        String s1 = "civic";
        String s2 = "maDam";
        String s3 = "aBBa";

        // Non-palindrome
        String s4 = "camCard";
        String s5 = "Ricky";

        System.out.println(palindromeChecker(s1));
        System.out.println(palindromeChecker(s2));
        System.out.println(palindromeChecker(s3));
        System.out.println(palindromeChecker(s4));
        System.out.println(palindromeChecker(s5));
    }
}