To make J2ME Apps or maybe games, you will need to install OpenJDK (done via `apt install openjdk-xx` xx is the version number), Download the CLDC&MIDP jar files (download them from jarcasting ). Create a new java file for the main program, called HelloMIDlet.java: ``` import javax.microedition.lcdui.*; import javax.microedition.midlet.*; public class HelloMIDlet extends MIDlet { private Display display; private Form form; public HelloMIDlet() { form = new Form("Hello World from J2ME!"); } protected void startApp() { display = Display.getDisplay(this); form.append(new StringItem("Message:", "Hello, World!")); ...