//HelloWorld.java import javax.microedition.lcdui.*; import javax.microedition.midlet.*; //HelloWorld(body) public class HelloWorld extends MIDlet { //Constructor public HelloWorld(){ Display.getDisplay(this).setCurrent(new HelloCanvas()); } //Application body public void startApp(){ } //Application pause public void pauseApp(){ } //Application stop public void destroyApp(boolean flag){ } } //HelloWorkd(canvas) class HelloCanvas extends Canvas{ //draw public void paint(Graphics g){ g.setColor(255,255,255); g.fillRect(0,0,getWidth(),getHeight()); g.setColor(0,0,0); g.drawString("Hello Open Appli World !",0,0,Graphics.LEFT|Graphics.TOP); } }