I have the following code:
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;
// All packages imported , ready for use... Add more if need be : +
@SuppressWarnings("unused")
public class main implements KeyListener, ActionListener
{
public boolean board_show =true;
public int AOB1 = 16;
public int AOB2 = 16;
public static int WOB = 640;
public static 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 static void render(Graphics g)
{
g.setColor(Color.black);
g.fillRect(0, 0, WOB, HOB);
}
@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
}
}
And I want to know why Eclipse, my editor will not let me run this file, as a whole, even in other modes it comes up with errors. I am fairly new to Java, so I am trying to make a Game - Chess. For now I just want to know why the editor will not let me run it and how I can run it. And of course, since I am new to Java, I only know the basics of the language, so any detailed response would be greatly appreciated!
You expect that having a class named main is enough to define an entry point to run a Java application. Wrong.
You need a method with exactly this signature
public static void main(String[] args) {
in your class. That method defines what happens when you "run" the class/application.
And the real answer is: study those tutorials written for people ... that just "start" with Java, like the one from Oracle. Even when you are proficient in other languages - when you just assume how things work; chances are that you run into exactly this kind of problems.