Since I am fairly new to Java, I only know enough to make variables, import stuff and some other stuff; but what I do not get is why the begin() function is not running and any help that can explain whats going on and possibly rewrite it in a better way would be greatly appreciated!
Thanks, Jerry
package nEW;
// Not Working - trying to format start by making a new "begin" object when run.
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.Renderer;
import javax.swing.Timer;
import javax.print.*;
public class Chessstart
{
public static void main(String[] args) {
open.start();
}
static class open
{
// All packages imported , ready for use... Add more if need be : +
public class begin implements ActionListener, KeyListener
{
public boolean board_show =true;
public int AOB1 = 16;
public int AOB2 = 16;
public static final int WOB = 640;
public static final int HOB = 640;
public int GStat = 0;
// Defines when game is playing, toggle-able twice 0, 1, 2
// 0 = Menu, 1 = Paused, 2 = Game
// Might Become Redundant
// TODO Make this feature redundant!
public boolean click, space;
public int turn;
public Component renderer;
public void ScreenUp()
{
Timer timer = new Timer(20, this);
JFrame jframe = new JFrame("CHESS");
jframe.setSize(WOB, HOB);
jframe.setVisible(true);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.add(renderer);
jframe.addKeyListener(this);
timer.start();
}
public void render(Graphics g)
{
g.setColor(Color.black);
g.fillRect(0, 0, WOB, HOB);
if (GStat == 0 || GStat == 1 || GStat == 2)
{
if (GStat == 0)
{
System.out.print("GStat return 0 - Render running");
}
if (GStat == 1)
{
System.out.print("GStat return 1 - render running");
}
if (GStat == 2)
{
System.out.print("GStat return 2 - render running");
}
}
}
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent arg0){
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
}
public static void start() {
open.begin();
}
}
}
I am fairly new too when it comes to Interfaces in Java, but...
Just like Ousmane Mahy Diaw mentionned in his comment, begin is a class, not a function. That is basic Java knowledge, so first I would recommend practicing doing your chess with command line. An Interface should be a separate effort.
There is a lot of problems with that code. I recommend using Netbeans IDE. It could help you out when it comes to basic errors.
I recommend doing like so when it comes to building Interfaces with JFrames:
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.Renderer;
import javax.swing.Timer;
import javax.print.*;
public class Chessstart extends JFrame implements ActionListener, KeyListener
{
public boolean board_show =true;
public int AOB1 = 16;
public int AOB2 = 16;
public static final int WOB = 640;
public static final int HOB = 640;
public int GStat = 0;
// Defines when game is playing, toggle-able twice 0, 1, 2
// 0 = Menu, 1 = Paused, 2 = Game
// Might Become Redundant
// TODO Make this feature redundant!
public boolean click, space;
public int turn;
public Component renderer;
public static void main(String[] args) {
Chessstart ch = new Chessstart();
//ch.render(ch.getGraphics());
ch.screenUp();
}
public void screenUp()
{
Timer timer = new Timer(20, this);
JFrame jframe = new JFrame("CHESS");
jframe.setSize(WOB, HOB);
jframe.setVisible(true);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.add(renderer);
jframe.addKeyListener(this);
timer.start();
}
public void render(Graphics g)
{
g.setColor(Color.black);
g.fillRect(0, 0, WOB, HOB);
if (GStat == 0 || GStat == 1 || GStat == 2)
{
if (GStat == 0)
{
System.out.print("GStat return 0 - Render running");
}
if (GStat == 1)
{
System.out.print("GStat return 1 - render running");
}
if (GStat == 2)
{
System.out.print("GStat return 2 - render running");
}
}
}
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent arg0){
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
}
This at least opens up your window, but please do note that you require initializing an object before using one. Meaning that rendering will not succeed without initialized graphics.
Also, why even use Renderer? You do not need to, the windows shows up and no errors like so:
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.Renderer;
import javax.swing.Timer;
import javax.print.*;
public class Chessstart extends JFrame implements ActionListener, KeyListener
{
public boolean board_show =true;
public int AOB1 = 16;
public int AOB2 = 16;
public static final int WOB = 640;
public static final int HOB = 640;
public int GStat = 0;
// Defines when game is playing, toggle-able twice 0, 1, 2
// 0 = Menu, 1 = Paused, 2 = Game
// Might Become Redundant
// TODO Make this feature redundant!
public boolean click, space;
public int turn;
public Component renderer;
public static void main(String[] args) {
Chessstart ch = new Chessstart();
//ch.render(ch.getGraphics());
ch.screenUp();
}
public void screenUp()
{
Timer timer = new Timer(20, this);
JFrame jframe = new JFrame("CHESS");
jframe.setSize(WOB, HOB);
jframe.setVisible(true);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.addKeyListener(this);
timer.start();
}
public void render(Graphics g)
{
g.setColor(Color.black);
g.fillRect(0, 0, WOB, HOB);
if (GStat == 0 || GStat == 1 || GStat == 2)
{
if (GStat == 0)
{
System.out.print("GStat return 0 - Render running");
}
if (GStat == 1)
{
System.out.print("GStat return 1 - render running");
}
if (GStat == 2)
{
System.out.print("GStat return 2 - render running");
}
}
}
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent arg0){
// TODO Auto-generated method stub
}
@Override
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
}