*****Assignment Operator Question - String Operations*****

Question

There's a lot of code here, but my question pertains to the italicized portion. I am assigning one StringObject to another. But when the assignment is tested with a System.out.println in the TestStringObject class, it doesn't look like the assignment has occurred properly. Even thought the string is reversed with the myObj.reverse() method, when the object is printed to the screen, it does not appear to be reversed. Is there really a problem with the way the assignment is occurring or am I misunderstanding the way assignment occurs in Java. By the way, the TestStringObject class must stay as is, but the StringObject code can be modified. Thanks!
class TestStringObject{
   public static void main(String [] args){
      StringObject myObj, yourObj;
      myObj = new StringObject("Hello-World!!! Java/is/awesome.");
      yourObj = new StringObject("a man a plan a canal panama");
      myObj.stripCharacters("-!/.");
      myObj.displayStringObject();
      System.out.println();
      myObj.reverse();
      myObj.displayStringObject();
      System.out.println();
      yourObj.stripCharacters(" ");
      System.out.print("yourObj = ");
      yourObj.displayStringObject();
      System.out.println();
myObj = new StringObject(yourObj.getStore());
myObj.reverse();
System.out.print("myObj = ");
myObj.displayStringObject();
System.out.println();
if(myObj.equals(yourObj))
System.out.println("they are equal");
else
System.out.println("they are not equal");
import java.lang.String.*;
class StringObject{
   private String store;
   private int storeLength;
   public StringObject(String s){
   //Creates a new StringObject by saving the string s in
   //the instance variable store and its length in
   //the instance variable storeLength.
   store = new String(s);
   storeLength = store.length();
   public void displayStringObject(){
   //Display the instance variable store.
   System.out.println(store);
   public void reverse(){
   //Updates store to hold the reverse of its contents.
   String reverseString = new String();
   char reverseLetter;
   for (int z = storeLength - 1; z > -1; --z){
       reverseLetter = store.charAt(z);
       reverseString = reverseString + reverseLetter;
   store = reverseString;
   public void stripCharacters(String stg){
   //Update store to hold its contents after each of the
   //characters in stg has been removed.
   int tempLength = stg.length();
   char newChar;
   for (int i = 0; i < tempLength; i++){
       newChar = stg.charAt(i);
       stripACharacter(newChar);
       storeLength = store.length();
   public boolean equals(StringObject sObj){ 
   //Determines if the store in sObj is identical to
   //the store in the receiver without regard to case.
   String newStore = sObj.store;
   if (newStore.equalsIgnoreCase(store))
      return true;
   else
      return false;  
   public String getStore(){
   //Return the store to the caller.
   return store;
   private void stripACharacter(char ch){
   //Update store to contain its contents after every occurrence
   //of character ch has been removed.
   String testString = new String();
   char letter;
   for (int x = 0; x < storeLength; x++){
       letter = store.charAt(x);
       if (letter != ch){
          testString = testString + letter;
   store = testString;
The Output:
D:\CMU>java TestStringObject
HelloWorld Javaisawesome
emosewasiavaJ dlroWolleH
yourObj = amanaplanacanalpanama
myObj = amanaplanacanalpanama
they are equal

Answer 1

It looks to me like your output is correct. What were you expecting when you compared a palindrome to its reverse?
I changed it to something that is not the same in both directions and got this output, which is also correct:HelloWorld Javaisawesome
emosewasiavaJ dlroWolleH
yourObj = abcdefg
myObj = gfedcba
they are not equal