Creating A Backwards String?

I am working on a class project where I have to give the program a predefined String, have it output the first char, then the second char, then the String backwards, and then the String as it originally was. The problem is that it's not out putting all of the information that I need it to. Here's my code:

Here is the class that prints the first char, second char, etc.:
 
public class Word { 
private String word;
 public Word() {
 }
 public Word(String s) {
 setString(word);

[code]....

Here's the main class:
 
public class WordRunner { 
public static void main(String[] args) {
 Word run = new Word();
 run.setString("Hello");

[Code] ....

The output is supposed to look like this:

H
o
olleH
Hello

But this is what I get:

olleH