Black background wanted

Question

Hi all. Where is black background? Why foto?
import java.awt.*;
import javax.swing.*;
public class Main extends JFrame {
    Main() {
        this.setSize(500, 500);
        this.setVisible(true);
   public void paint (Graphics g) { 
       setBackground(Color.black);       
   public static void main( String arv[]){
        JFrame frame = new Main();
}Edited by: America70 on Sep 14, 2007 11:35 PM

Answer 1

public class Main extends JFrame {
    Main() {
        getContentPane().setBackground(Color.black);
        this.setSize(500, 500);
        this.setVisible(true);
    public static void main( String arv[]){
        JFrame frame = new Main();
}You don't need to override any painting methods, just set the background color of the content pane in the constructor, and it will use that color automatically when it repaints itself.
If you were going to do custom painting though, you should use the paintComponent(Graphics g) method instead of paint(Graphics g), and call super.paintComponent(g); on the first line of that method. Then paint the background manually with the g object.