Java Programing laungage

/*
 * Save as a addSecretField.java
 */
package r4r.Mobile.Basic;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
/**
 * @author R4R
 */
public class addSecretField extends MIDlet {
 
 /* -- Private Field -- */
 private Form form;
 private Display display;
 private TextField inputText;
 private Command exit;
 /* -- Default constructor -- */
 public addSecretField() {
 display= Display.getDisplay(this);
 form= new Form("Add Secret Text Field into form");
 inputText= new TextField("Write something into text",
			"", 40,TextField.PASSWORD);
 exit= new Command("EXIT", Command.EXIT, 1);
 
 // Add field into form
 form.append(inputText);
 form.addCommand(exit);
 }
 public void startApp() {
 form.setCommandListener(new CommandListener() {
				
 public void commandAction(Command c, Displayable d) {
 if (c== exit) {
 destroyApp(true);
 notifyDestroyed();
 }
 }
 });
 display.setCurrent(form);
 }
 
 public void pauseApp() {
 }
 
 public void destroyApp(boolean unconditional) {
 }
}