simplegraphic.java

javaME useful code with the J2ME helpful learning cla

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class SimpleGraphic extends MIDlet implements CommandListener {
	private Command exitCommand;
	private SimpleGraphicCanvas sg;

	public SimpleGraphic() {
		super();
		exitCommand = new Command("Exit",Command.EXIT,1);
		sg = new SimpleGraphicCanvas();
		sg.addCommand(exitCommand);
		sg.setCommandListener(this);
		Display.getDisplay(this).setCurrent(sg);
		// TODO Auto-generated constructor stub
	}

	protected void startApp() throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	protected void pauseApp() {
		// TODO Auto-generated method stub

	}

	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}
	public void commandAction(Command c, Displayable d) {
		// TODO Auto-generated method stub
		if(c==exitCommand)
		{
			try{
				destroyApp(true);
			}
			catch(MIDletStateChangeException e){
				System.out.print("Exception");
			}
			notifyDestroyed();
		}
	}
	class SimpleGraphicCanvas extends Canvas
	{
		protected void paint (Graphics g)
		{
			g.drawLine(0,0,150,150);
			g.fillRect(150,100,40,40);
			g.drawRect(80,60,50,80);
		}
	}

}