# Programming an Arduino Mega with Java **URL:** \ **Category:** Programming\ **Created:** [March 18, 2014, 3:44am UTC](https://forum.arduino.cc/t/programming-an-arduino-mega-with-java/220490 "2014-03-18T03:44:53Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [March 18, 2014, 3:44am UTC](https://forum.arduino.cc/t/programming-an-arduino-mega-with-java/220490/1 "2014-03-18T03:44:53Z")
Hello everybody: Well, I want to make a project that consists in transfer information from an Arduino to a Java aplication for example I want to tap a some buttons of the keybord matrix (connected to the Arduino) and show the button in the java console what button I press and other example is that I write a String in a Java application and show it on a lcd display(connected to the Arduino board), I´ve been reading and I found that I can use the library RXTX but it is discontinued and also I found another one called JSSC but I don´t know which is better. Finally I don´t know in which language Do I have to write the program that shows the String on the LCD Display or show in the Java console what button I press. For your attention and send your time readind, thank you very much. Best whises. Diego10. ---
**Author:** ![Robin2](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/robin2/32/216045_2.png) [@Robin2](https://forum.arduino.cc/u/Robin2)\ **Post date:** [March 18, 2014, 8:42am UTC](https://forum.arduino.cc/t/programming-an-arduino-mega-with-java/220490/2 "2014-03-18T08:42:52Z")
I wrote a demo program to show how to send data to/from an Arduino here [Demo of PC-Arduino comms using Python - Interfacing w/ Software on the Computer - Arduino Forum](http://forum.arduino.cc/index.php?topic=225329.0). It uses the Python programming language on the PC which (imho) is much easier than Java. I originally wrote the PC program in JRuby (which uses the JVM) as I am more familiar with that than with Python. The JRuby program is attached to one of the later posts in the Thread. If you like the JVM I suggest you consider JRuby. As far as I can see RxTx has disappeared from the web so I have started using JSSC. It seems to be easier to use. ...R ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [May 5, 2021, 8:35pm UTC](https://forum.arduino.cc/t/programming-an-arduino-mega-with-java/220490/3 "2021-05-05T20:35:37Z")