sudo apt-get update
sudo apt-get install default-jdk
Set the JAVA_HOME environment variable:
export JAVA_HOME=/usr/lib/jvm/default-java
export PATH=$PATH:$JAVA_HOME/bin
Test Your Installation: Open a command prompt or terminal and type:
java -version bin
You should see information about the installed Java version.
Fun Tip: Customize your IDE to make coding more enjoyable by exploring themes and plugins.
  1. Open Eclipse and create a new Java project: Â
Click on “File” > “New” > “Java Project.”
  2. Enter a project name (e.g., HelloWorldProject) and click “Finish.”
  3. Inside the project, create a new Java class named HelloWorld:
Â
HelloWorld as the name and check the option to include the public static void main(String[] args) method.  4. Copy and paste the following code into the HelloWorld class:
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
Save the file (Ctrl + S).
  1. Open IntelliJ IDEA and create a new Java project:
Â
Â
  2. Inside the project, create a new Java class named HelloWorld:
Â
HelloWorld as the name and check the option to include the public static void main(String[] args) method.
  3. Copy and paste the following code into the HelloWorld class:
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
Â
Now, you’re ready to run your program in either Eclipse or IntelliJ IDEA. Follow the respective IDE’s steps to execute and see the “Hello, World!” output in the console. Happy coding!
Matics Academy: We simplify coding. Helping learners worldwide. Your easy path to tech mastery begins here!