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Java Programing laungage

J2ME Projects

J2ME Project 1

Creating a J2ME Application for addTextField into Form
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TextFieldTextField is an editable text component that may be placed into a Form. A TextField has a maximum size, which is the maximum number of characters that can be stored in the object at any time (its capacity).

TextField field= new TextField(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.

TextFIeld Program


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

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

/**
 * @author R4R
 */
public class addTextField extends MIDlet implements CommandListener {

    /* -- Private Field -- */
    private Display display;
    private Form form;
    private TextField inputText;
    private Command exit;
				

    /* -- Default constructor -- */
    public addTextField() {
        display = Display.getDisplay(this);
        form = new Form("Add TextField into form");
        inputText = new TextField("Write in TextField",
"", 40, TextField.PLAIN);
        exit = new Command("EXIT", Command.EXIT, 1);
         //-- Add textfield into form
        form.append(inputText);
        form.addCommand(exit);
        form.setCommandListener(this);
    }

    public void startApp() {
        display.setCurrent(form);

    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable d) {
        if (c == exit) {
            destroyApp(true);
            notifyDestroyed();
        }
    }
}

 

output
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