error in code ...

The following code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class HelloBa {
HelloBa () {
JFrame f = new JFrame("Hello Ba ");
f.setSize(300,300);
f.getContentPane().add(this);
f.setVisible(true);
}
public void paintComponent(Graphics g) {
g.drawString("What up Ba!",125,90);
}

public static void main(String[] args) {
new HelloBa ();
}
}


gives me the error: "cannot resolve symbol method add (HelloBa)". Does anyone have a solution to this problem?
Thanks

I think if you leave out this line it will work..

f.getContentPane().add(this);

Yes, but it won't do anything.

You need to derive from some class, probably JPanel.

sample

Code:

---

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class HelloBa extends JPanel{
    public HelloBa(){
        JFrame f=new JFrame("Hello Ba");
        f.setSize(300,300);
        f.getContentPane().add(this);
        f.setVisible(true);
    }
    public static void main(String[] args){
        new HelloBa();
    }
}

---

All of the add() methods in java.awt.Container take Component refs.