Thread: Need some help

First I want to say hello to the community. I am starting to learn java, and I want to do a bit of a more complex application. I want to make something like heroes 3, simplified version, based on a number of credits, I enroll units, and then on a battlefield, I make two armies fight.
The units have attributes and so on, the battlefield I've implemented it like a chessboard, 8x8.
So far, I'm working on the GUI, I've done the battlefield, but I am stuck at moving the units. Each unit is portrayed by a icon.

createPage3 - this is the place of the battlefield, where the chessboard is implemented, as for the rest of the pages, I can deal with all that later, but now I am trying, for example, to have a unit there, and to move it, by drag and drop. From what I've read, I know I have to use something like mousePressed(MouseEvent e), mouseDragged(MouseEvent me) , mouseReleased(MouseEvent e) but I don't know where to implement all this, or how to do it.
Also, should I move everything from createPage3 to another class, and get all from there into the page3?
Very much appreciated any help.

package src;
import java.awt.*;
 
 
 
import javax.swing.*;
 
class TabbedPaneExample extends 	JFrame
{
 
	private		JTabbedPane tabbedPane;
	private		JPanel		panel1;
	private		JPanel		panel2;
	private		JPanel		panel3;
	ImageIcon i = new ImageIcon("http://www.javaprogrammingforums.com/images/davion.gif");
	ImageIcon i2 = new ImageIcon("http://www.javaprogrammingforums.com/images/human_armour.gif");
	ImageIcon i3 = new ImageIcon("http://www.javaprogrammingforums.com/images/neworc2mg3.gif");
	ImageIcon i4 = new ImageIcon("http://www.javaprogrammingforums.com/images/22scythereloadedfullhelmbp7.gif");
 
	public TabbedPaneExample()
	{
		// NOTE: to reduce the amount of code in this example, it uses
		// panels with a NULL layout.  This is NOT suitable for
		// production code since it may not display correctly for
		// a look-and-feel.
 
		setTitle( "GAME" );
		setSize( 700, 700 );
		setBackground( Color.gray );
		setResizable(false);
		JPanel topPanel = new JPanel();
		topPanel.setLayout( new BorderLayout() );
		getContentPane().add( topPanel );
		//JOptionPane.showMessageDialog(topPanel,"Welcome to Battle SIM", "Message", getDefaultCloseOperation());
 
		// Create the tab pages
		createPage1();
		createPage2();
		createPage3();
 
		// Create a tabbed pane
		tabbedPane = new JTabbedPane();
		tabbedPane.addTab( "Hire units",i, panel1 );
		tabbedPane.addTab( "Army Overview",i, panel2 );
		tabbedPane.addTab( "Page 3", i, panel3 );
		topPanel.add( tabbedPane, BorderLayout.CENTER );
 
 
	}
 
	public void createPage1()
	{
		panel1 = new JPanel();
		panel1.setLayout( new FlowLayout() );
 
		panel1.add( new JButton( "Humans", i2 ) );
		panel1.add( new JButton( "Undead", i3 ));
		panel1.add( new JButton( "Orcs", i4 ));
 
 
	}
 
 
	public void createPage2()
	{
		panel2 = new JPanel();
		panel2.setLayout(new FlowLayout());
		panel2.add( new JButton( "Hire Units", i2 ) );
 
	}
 
 
	public void createPage3()
	{
		panel3 = new JPanel();
 
		//Label l1 = new Label("FIGHT!!");
        panel3.setLayout(new GridLayout(8,8));
        for (int i=0; i<64; i++)
        {
            Panel square = new Panel();
 
            if ((i+i/8)%2 == 0)
                square.setBackground(Color.darkGray);
            else
                square.setBackground(Color.white);
 
            panel3.add(square);
           // add(square);
        }
       // pack();
       // setVisible(true);
 
	}
 
 
	public static void main( String args[] )
	{
 
		TabbedPaneExample mainFrame	= new TabbedPaneExample();
 
		mainFrame.setVisible( true );
	}
}

I don't know much about these things, but you should be able to read about event handling here: Javanotes 5.1.2, Section 6.4 -- Mouse Events

this book is great!