Java by API/javax.microedition.lcdui/TextBox

new TextBox(String title, String text, int maxSize, int constraints)

   <source lang="java">
   

import javax.microedition.lcdui.Display; import javax.microedition.lcdui.TextBox; import javax.microedition.midlet.MIDlet; public class Main extends MIDlet {

 private TextBox textbox;
 public Main() {
   textbox = new TextBox("", "Hi Small World!", 20, 0);
 }
 public void startApp() {
   Display.getDisplay(this).setCurrent(textbox);
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }

}

 </source>
   
  
 
  

TextBox: addCommand(Command cmd)

   <source lang="java">
   

/* License

* 
* Copyright 1994-2004 Sun Microsystems, Inc. All Rights Reserved.
* 
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*  
*  * Redistribution of source code must retain the above copyright notice,
*      this list of conditions and the following disclaimer.
* 
*  * Redistribution in binary form must reproduce the above copyright notice,
*      this list of conditions and the following disclaimer in the
*      documentation and/or other materials provided with the distribution.
* 
* Neither the name of Sun Microsystems, Inc. or the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*  
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*  
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility. 
*/

import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.TextBox; import javax.microedition.midlet.MIDlet; // A first MIDlet with simple text and a few commands. public class Main extends MIDlet implements CommandListener {

 // The exit, info, and buy commands
 private Command exitCommand;
 private Command infoCommand;
 private Command buyCommand;
 // The display for this MIDlet
 private Display display;
 public Main() {
   display = Display.getDisplay(this);
   exitCommand = new Command("Exit", Command.SCREEN, 1);
   infoCommand = new Command("Info", Command.SCREEN, 2);
   buyCommand = new Command("Buy", Command.SCREEN, 2);
 }
 // Start the MIDlet by creating the TextBox and
 // associating the exit command and listener.
 public void startApp() {
   TextBox t = new TextBox("FirstMIDlet", "Welcome to MIDP Programming", 256,
       0);
   t.addCommand(exitCommand);
   t.addCommand(infoCommand);
   t.addCommand(buyCommand);
   t.setCommandListener(this);
   display.setCurrent(t);
 }
 // Pause is a no-op because there are no background
 // activities or record stores to be closed.
 public void pauseApp() {
 }
 // Destroy must cleanup everything not handled
 // by the garbage collector.
 // In this case there is nothing to cleanup.
 public void destroyApp(boolean unconditional) {
 }
 // Respond to commands. Here we are only implementing
 // the exit command. In the exit command, cleanup and
 // notify that the MIDlet has been destroyed.
 public void commandAction(Command c, Displayable s) {
   if (c == exitCommand) {
     destroyApp(false);
     notifyDestroyed();
   }
 }

}

 </source>
   
  
 
  

TextBox: setCommandListener(CommandListener l)

   <source lang="java">
   

import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.lcdui.TextBox; import javax.microedition.midlet.MIDlet; public class Main extends MIDlet implements CommandListener {

 private Display display;
 private TextBox textbox;
 private Command exit = new Command("Exit", Command.SCREEN, 1);
 public Main() {
   display = Display.getDisplay(this);
   String message = null;
   if (display.isColor()) {
     message = "Color display.";
   } else {
     message = "No color display";
   }
   textbox = new TextBox("Check Colors", message, 17, 0);
   textbox.addCommand(exit);
   textbox.setCommandListener(this);
 }
 public void startApp() {
   display.setCurrent(textbox);
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == exit) {
     destroyApp(true);
     notifyDestroyed();
   }
 }

}

 </source>
   
  
 
  

TextBox: setTicker(Ticker ticker)

   <source lang="java">

import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.TextBox; import javax.microedition.lcdui.Ticker; import javax.microedition.midlet.MIDlet; public class J2MEappendTicker extends MIDlet implements CommandListener {

 private Command exitCommand  = new Command("cmd", Command.EXIT, 1);
 private Display display;
 public J2MEappendTicker() {
   display = Display.getDisplay(this);
 }
 public void startApp() {
   TextBox t = new TextBox("Hello", "Welcome to MIDP Programming", 256, 0);
   Ticker aTicker = new Ticker("ticker");
   t.setTicker(aTicker);
   t.addCommand(exitCommand);
   t.setCommandListener(this);
   display.setCurrent(t);
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }
 public void commandAction(Command c, Displayable s) {
   if (c == exitCommand) {
     destroyApp(false);
     notifyDestroyed();
   }
 }

}

 </source>