In this section we present a few simple programs for the Java
Platform Micro Edition, also called J2ME.
These programs are also called "MIDLET".
The J2ME platform to run Java programs on their mobile phone or
handheld devices labeled "CLDC"Connected Limited Device Configuration.
For this programs is not currently a manual.
Unless differently indicated, all programs are presented in accordance
with the configuration "MicroEdition-Configuration: CLDC-1.0"
and the profile "MicroEdition-Profile: MIDP-1.0"
To install the programs on your phone, there are two possibilities:
If your phone does not support Java Micro Edition, or if you just
do not want to use your phone to make tests, you can download the
free program MicroEmulator,
that lets you try on your PC all programs for the Java Platform Micro Edition.
All screens example of presenting programs that are made using this product.
Currently version 2.0.1 work needs to be installed on the PC Java version 1.4 or higher.
Once unpacked file downloaded double click on the file "microemulator.jar" to start the simulator.
Now you can also try these programs in our demonstration page directly from the browser!
This program allows you to see the Italian RAI teletext pages very quickly and with a limited exchange of data. Obviously requires a data connection.
The program is available only in Italian language.
Operation is very simple. Just start the program displays a warning about the data connection, we must continue to accept the stipulation that the undersigned disclaims any liability relating to the cost of the connection.
Once you accept the clause is the main screen from which you can access the following features and options:
Keep in mind that the connection starts (you are asked permission) when you are prompted to view the first page and ends when you exit the program.
So if for example you have a contract in time with sessions of 15 minutes you can stay connected for 15 minutes (and display many pages) the cost of a single connection.
Before using this program evaluated the kind of contract applied to your telephone number in order to avoid unpleasant surprises!
The operation is very simple:
Some pictures of the running program:
Main screen where you can select edition, page and subpage.
Screen teletext page on the device with small screen.
Screen teletext page on the device with large screen.
Is required a mobile phone with this properties:
Try it in our demonstration page!
Download from a computer JcMeTelevideo 1.0;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/9.jad
JcMeTranslator is a program for performing automated translation of a text from one language to another language.
It's the equivalent of JcTranslator designed for the J2ME platform.
To make the translation, the program use the online service of Google, this implies the need to make a connection to the internet with your phone.
Keep in mind that the connection starts (you are asked permission) when the first translation is required and ends when you exit the program.
So if for example you have a contract in time with sessions of 15 minutes you can stay connected for 15 minutes (and translate many words) at the cost of a single connection.
Before using this program evaluated the kind of contract applied to your telephone number in order to avoid unpleasant surprises!
Here are some pictures of the program:
Acceptance of Terms of use (first in English and then in Italian):
Language selection:
Entering text to be translated:
Translated text:
Is required a mobile phone with this properties:
Try it in our demonstration page.
Download from a computer JcMeTranslator 1.2;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/8.jad
This program is the classic Trig game, also called Tic-Tac-Toe.
Is played on a square grid of 3×3 boxes. In turn, players choose
an empty cell and will draw its own symbol (usually a player has
the symbol "X" and the other a circle). The first player to get
three pieces in a row (vertically, horizontally, or diagonally)
is the winner. If the grid is filled without any of the players
managed to complete a straight line of three symbols, the game
ends in a draw.
The main feature is that you can play in two, everyone on your
phone, using BlueTooth to communicate the moves!
Operation is very simple. Once started the program displays a menu with the following items:
Warning! To play using Bluetooth, a player must start the game in SERVER mode and the other player in the CLIENT mode.
This sequence of images shows how to start the game using Bluetooth
and some phases of play.
On the left side shows the CLIENT running on Linux while
on the right side shows the SERVER in Windows.
Start of game, player 1 in CLIENT mode and player 2 in SERVER mode
Waiting BlueTooth connection
Successful connect message
Start of game
Is required a mobile phone with this properties:
Try it in our demonstration page (without BlueTooth features)!
Download from a computer JcMeTrisBT 1.0;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/7.jad
This program allows you to turn your phone into a stopwatch that can save well 99 times for 9 competitors!
The main features are:
The use is very simple. When you start the program displays a menu with the following items:
Now we see in detail how to handle a timing session.
Attention! Every time you start this process data from any previous
timing sessions are erased, so you can save the session to file.
Now we see in detail how to display data from a timing session just ended or loaded from file.
This sequence of pictures shows how we are presenting the program
on a simulator when mode with many competitors is selected.
In the sequence you can see the alternation of information about
the best, worst and average time.
This image shows how we are presenting the program on a simulator when single competitor mode is selected.
Is required a mobile phone with this properties:
Try it in our demonstration page!
Download from a computer JcMeChrono 1.1;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/5.jad
This program allows you to use the phone screen display like a small lamp.
You can also change the color of light emitted by both defaults
that varying each color component (RGB channels), although obviously
the maximum efficiency is obtained with the white light!
When the program is set white light, then using the buttons on the menu, you can set the defaults, but to customize the color you use these buttons:
This image shows how the program looks on a simulator when it is selected personalize the color levels.
Try it in our demonstration page!
Download from a computer JcMeLight 1.0;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/1.jad
This program allows you to view the properties of the phone
system and combinations of fonts available.
When displays the following properties:
Pressing the key dedicated to menu, two options are proposed:
- display the "Mobile Media Api JSR-135" properties;
- display all possible combinations of fonts available, many phones
have only one font, so do not worry if the writing are all equal.
The "Mobile Media Api JSR-135" properties are this:
This image shows how the program looks on a simulator.
And here you can see any combination of fonts available.
Try it in our demonstration page!
Download from computer JcMeProperties 1.1;
To download the program directly from the phone, type to the mobile
browser the following address http://www.javahouse.altervista.org/j2me
And select the desired application.
If the above does not work mode type the following address
http://www.javahouse.altervista.org/j2me/2.jad