Desenvolvendo um mspaint

Estou tentando desenvolver em java. Sou Iniciante. Escolhi desenvolver um clone do paint do windows porque
acredito para desenvolver uma aplicação grafica simples como esta aprenderia no processo de desenvolvimento
dezenas ou centenas de aspecto de java.Não posso usar ides como o netbeans porque disponho apenas de 64 Mb
de ram e windows 98 instalado na maquina. assim tudo tem de ser feito na unha ou com codigo fonte.

Ai esta o problema:

Só pra criar uma interface usando swing pra gerar os menus do paint, um arquivo fonte de 510 linhas foi gerado.

para gerar eventos para cada item de menu e que cada caixa de dialogo de cada item de menu gerasse eventos
corretos como o paint eu teria um arquivo fonte de milhares e milhares de linhas onde seria dficil se não impossivel
localizar cada detalhe para altera-lo.

para localizar um determinado aspecto - o codigo que implementa o que o item de arquivo-novo faz necessario um novo
arquivo fonte com o codigo especifico.

como implementar isso? como criar multiplos arquivos para um projeto? compila-los e uni-los numa unica aplicação?

Obrigado a todos desde ja

deltanusigma

Tbm não sou expert em java, mas criei um exemplo aqui pelo Eclipse usando a o plugin Visual Class. Acho que ajuda.

Paint.java

import java.awt.event.KeyEvent;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Event;
import java.awt.BorderLayout;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.KeyStroke;
import java.awt.Point;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JMenuItem;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JFrame;
import javax.swing.JDialog;

public class Paint {

	private JFrame jFrame = null;
	private JPanel jContentPane = null;
	private JMenuBar jJMenuBar = null;
	private JMenu fileMenu = null;
	private JMenu editMenu = null;
	private JMenu helpMenu = null;
	private JMenuItem exitMenuItem = null;
	private JMenuItem aboutMenuItem = null;
	private JMenuItem cutMenuItem = null;
	private JMenuItem copyMenuItem = null;
	private JMenuItem pasteMenuItem = null;
	private JMenuItem saveMenuItem = null;
	private JMenuItem newMenuItem = null;
	private JDialog aboutDialog = null;
	private JPanel aboutContentPane = null;
	private JLabel aboutVersionLabel = null;

	/**
	 * This method initializes jFrame
	 * 
	 * @return javax.swing.JFrame
	 */
	private JFrame getJFrame() {
		if (jFrame == null) {
			jFrame = new JFrame();
			jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			jFrame.setJMenuBar(getJJMenuBar());
			jFrame.setSize(300, 200);
			jFrame.setContentPane(getJContentPane());
			jFrame.setTitle("Paint");
		}
		return jFrame;
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jContentPane = new JPanel();
			jContentPane.setLayout(new BorderLayout());
		}
		return jContentPane;
	}

	/**
	 * This method initializes jJMenuBar	
	 * 	
	 * @return javax.swing.JMenuBar	
	 */
	private JMenuBar getJJMenuBar() {
		if (jJMenuBar == null) {
			jJMenuBar = new JMenuBar();
			jJMenuBar.add(getFileMenu());
			jJMenuBar.add(getEditMenu());
			jJMenuBar.add(getHelpMenu());
		}
		return jJMenuBar;
	}

	/**
	 * This method initializes jMenu	
	 * 	
	 * @return javax.swing.JMenu	
	 */
	private JMenu getFileMenu() {
		if (fileMenu == null) {
			fileMenu = new JMenu();
			fileMenu.setText("File");
			fileMenu.add(getNewMenuItem());
			fileMenu.add(getSaveMenuItem());
			fileMenu.add(getExitMenuItem());
		}
		return fileMenu;
	}

	/**
	 * This method initializes jMenu	
	 * 	
	 * @return javax.swing.JMenu	
	 */
	private JMenu getEditMenu() {
		if (editMenu == null) {
			editMenu = new JMenu();
			editMenu.setText("Edit");
			editMenu.add(getCutMenuItem());
			editMenu.add(getCopyMenuItem());
			editMenu.add(getPasteMenuItem());
		}
		return editMenu;
	}

	/**
	 * This method initializes jMenu	
	 * 	
	 * @return javax.swing.JMenu	
	 */
	private JMenu getHelpMenu() {
		if (helpMenu == null) {
			helpMenu = new JMenu();
			helpMenu.setText("Help");
			helpMenu.add(getAboutMenuItem());
		}
		return helpMenu;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getExitMenuItem() {
		if (exitMenuItem == null) {
			exitMenuItem = new JMenuItem();
			exitMenuItem.setText("Exit");
			exitMenuItem.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					System.exit(0);
				}
			});
		}
		return exitMenuItem;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getAboutMenuItem() {
		if (aboutMenuItem == null) {
			aboutMenuItem = new JMenuItem();
			aboutMenuItem.setText("About");
			aboutMenuItem.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					JDialog aboutDialog = getAboutDialog();
					aboutDialog.pack();
					Point loc = getJFrame().getLocation();
					loc.translate(20, 20);
					aboutDialog.setLocation(loc);
					aboutDialog.setVisible(true);
				}
			});
		}
		return aboutMenuItem;
	}

	/**
	 * This method initializes aboutDialog	
	 * 	
	 * @return javax.swing.JDialog
	 */
	private JDialog getAboutDialog() {
		if (aboutDialog == null) {
			aboutDialog = new JDialog(getJFrame(), true);
			aboutDialog.setTitle("About");
			aboutDialog.setContentPane(getAboutContentPane());
		}
		return aboutDialog;
	}

	/**
	 * This method initializes aboutContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getAboutContentPane() {
		if (aboutContentPane == null) {
			aboutContentPane = new JPanel();
			aboutContentPane.setLayout(new BorderLayout());
			aboutContentPane.add(getAboutVersionLabel(), BorderLayout.CENTER);
		}
		return aboutContentPane;
	}

	/**
	 * This method initializes aboutVersionLabel	
	 * 	
	 * @return javax.swing.JLabel	
	 */
	private JLabel getAboutVersionLabel() {
		if (aboutVersionLabel == null) {
			aboutVersionLabel = new JLabel();
			aboutVersionLabel.setText("Version 1.0");
			aboutVersionLabel.setHorizontalAlignment(SwingConstants.CENTER);
		}
		return aboutVersionLabel;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getCutMenuItem() {
		if (cutMenuItem == null) {
			cutMenuItem = new JMenuItem();
			cutMenuItem.setText("Cut");
			cutMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,
					Event.CTRL_MASK, true));
		}
		return cutMenuItem;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getCopyMenuItem() {
		if (copyMenuItem == null) {
			copyMenuItem = new JMenuItem();
			copyMenuItem.setText("Copy");
			copyMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,
					Event.CTRL_MASK, true));
		}
		return copyMenuItem;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getPasteMenuItem() {
		if (pasteMenuItem == null) {
			pasteMenuItem = new JMenuItem();
			pasteMenuItem.setText("Paste");
			pasteMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,
					Event.CTRL_MASK, true));
		}
		return pasteMenuItem;
	}

	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getSaveMenuItem() {
		if (saveMenuItem == null) {
			saveMenuItem = new JMenuItem();
			saveMenuItem.setText("Save");
			saveMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,
					Event.CTRL_MASK, true));
		}
		return saveMenuItem;
	}
	
	/**
	 * This method initializes jMenuItem	
	 * 	
	 * @return javax.swing.JMenuItem	
	 */
	private JMenuItem getNewMenuItem() {
		if (newMenuItem == null) {
			newMenuItem = new JMenuItem();
			newMenuItem.setText("New");
			newMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,
					Event.CTRL_MASK, true));
			newMenuItem.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					Imagem i = new Imagem();
					i.setVisible(true);
				}
			});	
		}
		return newMenuItem;
	}


	/**
	 * Launches this application
	 */
	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				Paint application = new Paint();
				application.getJFrame().setVisible(true);
			}
		});
	}
}

Imagem.java

import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JFrame;

public class Imagem extends JFrame {

	private static final long serialVersionUID = 1L;

	private JPanel jContentPane = null;

	/**
	 * This is the default constructor
	 */
	public Imagem() {
		super();
		initialize();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 */
	private void initialize() {
		this.setSize(300, 200);
		this.setContentPane(getJContentPane());
		this.setTitle("JFrame");
	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jContentPane = new JPanel();
			jContentPane.setLayout(new BorderLayout());
		}
		return jContentPane;
	}
}

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