Java Programing laungage

J2ME Projects

J2ME Project 1

Creating a J2ME Application for addTextBox into Form
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TextBoxTextBox class is a Screen that allows the user to enter and edit text. A TextBox has a maximum size, which is the maximum number of characters that can be stored in the object at any time (its capacity).

TextBox box= new TextBox(label, text, maxSize, constraints);

label = display user define label.

text = display text into TextField.

maxSize = The maximum size is the maximum stored capacity and is unrelated to the number of characters that may be displayed at any given time.

constraints = TextField shares different constraints allow the application to request that the user's input be restricted in a variety of ways. For example, if user want NUMERIC constraint on a TextField the used TextField.NUMERIC, its must allow numeric characters into TextField.

TextBox Program


/*
 * Save as a addTextBox.java
 */
package r4r.Mobile.Basic;

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
		/**
 * @author R4R
 */
public class addTextBox extends MIDlet {
    
     /* -- Private Field -- */
    private Display display;
    private TextBox inputBox;
    private Command exit;

    /* -- Default constructor -- */
    public addTextBox() {
        display= Display.getDisplay(this);
        inputBox= new TextBox("Write something into TextBox", "", 40, 0);
         exit = new Command("EXIT", Command.EXIT, 1);
         
         // add field into form
         inputBox.addCommand(exit);
    }

    public void startApp() {
        inputBox.setCommandListener(new CommandListener() {

            public void commandAction(Command c, Displayable d) {
                if (c== exit) {
                    destroyApp(true);
                    notifyDestroyed();
                }
            }
        });
        display.setCurrent(inputBox);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
}

 

output of the program

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