Inherit from a superclass

Question

I need to have in my code where I inherit from a superclass.
On the first line of my code where it uses the word extends JPanel. Am I not inheriting from a superclass?
public class u07a1KMcKay extends JPanel
    private JTextField fahrenheitText    = new JTextField(15);
    private JTextField celciusText       = new JTextField(15);
    private JTextField messageField;
     // u07a1KMcKay constructor adds JTextFields to JPanel
    public u07a1KMcKay()
    {  ....  }

Answer 1

Java class names should start with an uppercase letter.... and should indicate the purpose of the class, that is to say, what it represents.
For example, the class that best describes the reason behind many postings here:
{color:#0000ff}http://java.sun.com/javase/6/docs/api/java/nio/charset/CoderMalfunctionError.html{color}
and the outcome of those postings:
{color:#0000ff}http://java.sun.com/javase/6/docs/api/java/nio/charset/CoderResult.html{color}
In lighter vein, Darryl