Lejos -

Flash the image onto your microSD card using software like BalenaEtcher. Insert the card into the and boot it up. Connect the

Ensure the leJOS libraries are included in your project build path. 3. Your First Program ("Hello World")

Select File -> New -> Project -> leJOS -> leJOS EV3 Project . Flash the image onto your microSD card using

import lejos.hardware.lcd.LCD; import lejos.utility.Delay; public class HelloWorld { public static void main(String[] args) { LCD.drawString("Hello, leJOS!", 0, 0); Delay.msDelay(2000); // Wait for 2 seconds LCD.clear(); } } Use code with caution. Copied to clipboard

Create a new Java class and use the following code to display text on the screen: Copied to clipboard Create a new Java class

Right-click your project -> leJOS -> Upload and Run on EV3 . 4. Core Concepts & API LeJOS, Java for Lego Mindstorms / Books

to your computer via USB to configure networking (Wi-Fi is recommended). 2. Development Environment Setup (Eclipse) Use Eclipse for Java Developers. // Wait for 2 seconds LCD.clear()

In Eclipse, go to Help -> Install New Software , and use the leJOS update site (found on the leJOS wiki) to install the plugin.