Re: ArrayList.add problem

I think this is a bit tougher then the last one I posted (which was quite
simple). I think I'm missing something fundamental. This code runs, but when
I run it and it prints out the contents of the list it shows that all items
in the list have the same value as the last item I added. I expect to see in
the console:

[0] - aaa
[1] - bbb
[2] - ccc

But instead I see

[0] - ccc
[1] - ccc
[2] - ccc

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import java.util.*;

public class Assignment1
{
    public static class WordPair
    {
        String firstWord;
    }

    public static void main(String[] args)
    {
        WordPair tempWordPair = new WordPair();You have made a box labelled "tempWordPair", it is empty.

        ArrayList<WordPair> wordPairList = new ArrayList<WordPair>();You have made a chest of drawers labelled "wordPairList". All the

        tempWordPair.firstWord = "aaa";In the box called "tempWordPair" you put a piece of paper with "aaa"

        wordPairList.add( tempWordPair );into the top drawer of wordPairList you put a piece of paper with "go

        tempWordPair.firstWord = "bbb";In the box called "tempWordPair" you put a piece of paper with "bbb"

        wordPairList.add( tempWordPair );into the *second* drawer of wordPairList you put a piece of paper with

        tempWordPair.firstWord = "ccc";In the box called "tempWordPair" you put a piece of paper with "ccc"

        wordPairList.add( tempWordPair );into the *third* drawer of wordPairList you put a piece of paper with

        System.out.println("[0] - " + wordPairList.get(0).firstWord);we go to the chest of drawers labelled wordPairList and look in the top

        System.out.println("[1] - " + wordPairList.get(1).firstWord);drawer 1 also refers us to the box containing ccc

        System.out.println("[2] - " + wordPairList.get(2).firstWord);drawer 2 also refers us to the box containing ccc

    }
}