java question

// inherited - bad
public MyString extends String {

  public MyString () {
    super();
  }

  public String capitalize(String string) {
    String capString = string.subString(0,1);
    capString = first.toUpperCase();
    capString += string.subString(1,string.length());
    return capString;
  }

}

// helper - good
// named well by @srbaker ;)
public StringFondler() {

  private final String string;

  public StringFondler(String string) {
    this.string = string;
  }

  public String capitalize() {
    String capString = this.string.subString(0,1);
    capString = first.toUpperCase();
    capString += this.string.subString(1,this.string.length());
    return capString;
  }

}

// calling with inherit
MyString foo = new MyString("hello");
foo.capitalize(); => "Hello"

//calling with helper
String foo = new StringHelper("hello").capitalize; => "Hello"