######################## public class MyString { public static void main(String[] args) { String str = "some string"; String revStr = reverseString(str); System.out.println("The reverse of (" + str + ") is: " + revStr); System.out.println("Is the reverseString method working correctly? " + reverseStringTest()); } private static String reverseString(String str) { StringBuffer sb = new StringBuffer(); for(int i = str.length()-1; i>= 0; i--) { sb.append(str.charAt(i)); } return sb.toString(); } private static boolean reverseStringTest() { String str = "test"; String result = "tset"; String revStr = reverseString(str); return revStr.equals(result); } }