helloworld.java

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import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class HelloWorld extends MIDlet implements CommandListener {

    private Display display;
    public static final Command exitCommand = new Command("退出",Command.EXIT,1);

    public HelloWorld() {
        
    }

    public void startApp() {
    	if(display == null)
    	{
    		display = Display.getDisplay(this);
        }
        TextBox t = new TextBox("Netbeans", "出色的Java开发工具", 256, 0);
        display.setCurrent(t);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {

    }

    public void commandAction(Command cmd,Displayable displayable){
	if(cmd == exitCommand){
		destroyApp(false);
		notifyDestroyed();
	}
    }
}