Test for a Palindrome...

PalindromeCheck.java

public class PalindromeCheck {

	public final boolean isPalindrome(String s) {
		boolean isPalindrome = true;
		for (int i = 0; i < s.length(); i++) {
			if (!(s.charAt(i) == s.charAt(s.length() - i - 1))) {
				isPalindrome = false;
				break;
			}
		}
		return isPalindrome;
	}

	public static void main(String[] args) {
		System.out.println(new PalindromeCheck().isPalindrome("a")); // true
		System.out.println(new PalindromeCheck().isPalindrome("aabaa")); // true
		System.out.println(new PalindromeCheck().isPalindrome("abccba"));// true
		System.out.println(new PalindromeCheck().isPalindrome("abcba"));// true
		System.out.println(new PalindromeCheck().isPalindrome("ab"));// false
	}

}

//Scala:

def isPalindrome(s:String) = s.toUpperCase.equals(s.reverse.toUpperCase)