hello, i am new to programming, but i have made my own quiz program where people can make their own questions, answers and alternatives and the start the guiz.
but now i want to move on to understand more complex game code, but i want to start small, and i have heard a "pong" code is the perfect approach, but i searched a little on the web, and found little of turorials to help me, but i fund something, but the problem is, i cant understand jpanel, and that sort of stuff, i can list the things that needs explaining to me here, and then i will post the code afterwards:
JContentPane
Panel
This
actually, almost everything need explaining and i would highly appreciate if you would help me 
, thx in advance
here is the code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Main extends JFrame {
private static final long serialVersionUID = 1L; // Eclipse added this automatically
private JPanel jContentPane = null;
private PanelPelota panel = null; // This is the panel of the game class
private PanelPelota getPanel() {
if (panel == null) {
panel = new PanelPelota(); // The panel is created
}
return panel;
}
/**
* This is the default constructor
*/
public Main() {
super();
initialize();
// Listeners for the keyboard
this.addKeyListener(new KeyAdapter() {
//Method for the key pressed
public void keyPressed(KeyEvent evt) {
formKeyPressed(evt);
}
// Method for the key released
public void keyReleased(KeyEvent evt) {
formKeyReleased(evt);
}
});
}
// Here i'm stating the method that will send the key pressed to the game class
private void formKeyPressed(KeyEvent evt)
{
panel.keyPressed(evt);
}
// Here i'm stating the method that will send the key released to the game class
private void formKeyReleased(KeyEvent evt)
{
panel.keyReleased(evt);
}
/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setResizable(false);
this.setBounds(new Rectangle(312, 184, 250, 250)); // Position on the desktop
this.setMinimumSize(new Dimension(250, 250));
this.setMaximumSize(new Dimension(250, 250));
this.setContentPane(getJContentPane());
this.setTitle("Pong");
}
/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
jContentPane.setLayout(new BorderLayout());
jContentPane.add(getPanel(), BorderLayout.CENTER);
}
return jContentPane;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Main thisClass = new Main();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
thisClass.setVisible(true);
}
});
}
}
i am sorry, the "code" thing wint add syntax highightning, but i hope thats okay.
link to the original code:
