Passing a value from a JFrame to a JPanel

I have an annoying problem using JFrames and JPanels. I have a class extending a JFrame and in the contructor I have a string. I want to pass this value into the JPanel also in the contructor. I cant think how to do it. This is what I did:

  public class NewFileMaker extends JFrame{

private String name;

public NewFileMaker(JPanel j, String newfilename){
    setTitle("New File");
    setResizable(false);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.ad开发者_C百科d(j);
    this.pack();
    this.name = newfilename;



}

Is there a way of passing the value "name"? I could extend JPanel and create a new class and a new method, but it would require a lot of reworking a lot of other classes.

MORE INFO: I took the advice and extended JPanel, which was actually really painless.

The NewFileMaker class is called in another class like this

new NewFileMaker(new GeneratePanel(getFileName()));

where getfileName() gets the name I wanted. Actually the solution is so simple I have to apologize to everybody. Sorry for wasting your time!

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i think that the best solution would be extending jpanel. Anyway if you can't do that maybe you can add to jframe a PropertyChangeListener.

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JPanel doesn't have a string constructor, so you can't pass it in that way.

You can try calling panel.setName(name) instead.