Hey everyone, I am trying to run the following program, but am getting a NullPointerException. I am new to the Java swing library so I could be doing something very dumb. Either way here are my two classes I am just playing around for now and all i want to do is draw a damn circle (ill want to draw a gallow, with a hangman on it in the end).
package hangman2;
import java.awt.*;
import javax.swing.*;
public class Hangman2 extends JFrame{
private GridLayout alphabetLayout = new GridLayout(2,2,5,5);
private Gallow gallow = new Gallow();
public Hangman2() {
setLayout(alphabetLayout);
setSize(1000,500);
setVisible( true );
}
public static void main( String args[] ) {
Hangman2 application = new Hangman2();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
}
package hangman2;
import java.awt.*;
import javax.swing.*;
public class Gallow extends JPanel {
private Graphics g;
public Gallow(){
g.fillOval(10, 20, 40, 25);
}
}
The NullPointerException comes in at the g.fillOval line.
Thanks in advance,
Tomek