Linux Tactic

Mastering Java Development on Arch Linux with Oracle JDK 11

How to Install Oracle JDK 11 on Arch Linux

If you’re an Arch Linux user, you may rely on Java applications to run certain software. However, before you can use Java, you need to install it on your system.

In this tutorial, we will go through the steps necessary to download and install Oracle JDK 11 on Arch Linux. Part I: Downloading Oracle JDK 11

The first step in installing Oracle JDK 11 on Arch Linux is to download it from the official website.

Follow these simple steps to download it:

1. Access the official website of Oracle JDK.

2. Click on the Java SE tab to access the Java SE download page.

3. Scroll down to the “Java SE Development Kit 11 Downloads” section.

4. Click on the “Accept License Agreement” radio button.

5. Select the appropriate version of Linux for your system.

6. Click on the “Download” button to begin the download.

Part II: Installing Oracle JDK 11

Once you have downloaded the Oracle JDK 11 archive, you can proceed with the installation process. Here’s how:

1.

Extract the Oracle JDK 11 archive using the following command:

`tar xvf `

2. Move the extracted directory to the /opt/ directory using the following command:

`sudo mv jdk-11* /opt/`

3.

Next, you need to set up the environment variables for Java. Open the /etc/environment file using your preferred text editor, and add the following lines:

`JAVA_HOME=”/opt/jdk-11.0.2″`

`PATH=”$PATH:$JAVA_HOME/bin”`

4.

Finally, apply the changes by rebooting your machine or executing the following command:

`source /etc/environment`

Part III: Compiling and Running a Simple Java Program with Oracle JDK 11

Once you’ve installed Oracle JDK 11, you can now compile and run your first Java program. Let’s create a simple “Hello World” program:

1.

Open a text editor and type the following code:

“`

public class HelloWorld {

public static void main(String[] args) {

System.out.println(“Hello, World!”);

}

}

“`

2. Save the file as HelloWorld.java in a directory of your choice.

3. Compile the HelloWorld.java source file using the following command:

`javac HelloWorld.java`

4.

This will generate a HelloWorld.class file in the same directory. 5.

Run the program using the following command:

`java HelloWorld`

6. You should see the output “Hello, World!” displayed on your terminal.

Conclusion

In this tutorial, we have shown you how to install Oracle JDK 11 on Arch Linux, and how to compile and run your first Java program. Hopefully, this will provide a starting point for your Java development on Arch Linux.

In this tutorial, we will guide you through the steps required to install Oracle JDK 11 on your system, extract and install it, and add it to the PATH environment variable.

Part I: Accessing the Downloaded Oracle JDK 11 Archive

Once you have downloaded the Oracle JDK 11 archive, you need to locate it on your system before you can begin the installation process.

The default download directory for most browsers is the Downloads directory. You can navigate to it using the file manager.

If you have saved the archive in a different location, navigate to the appropriate directory. Part II: Extracting and Installing Oracle JDK 11

Now that you have accessed the downloaded Oracle JDK 11 archive, you can proceed with the extraction and installation process.

Follow these steps carefully:

1. Open the terminal, and navigate to the directory where you have saved the Oracle JDK 11 archive.

2. Extract the archive using the following command:

`tar xvf `

3.

Next, move the extracted directory to the /opt/ directory using the following command:

`sudo mv jdk-11* /opt/`

4. Set the appropriate permissions for the newly installed JDK by executing the following commands:

`sudo chown -R root:root /opt/jdk-11*`

`sudo chmod -R +x /opt/jdk-11*`

5.

That’s it! The Oracle JDK 11 is now installed on your system. Part III: Adding Oracle JDK 11 to the PATH

After installing Oracle JDK 11, you must add it to the PATH environment variable on your system.

Follow these steps:

1. Check the installation directory of Oracle JDK 11 by navigating to the /opt/ directory using the following command:

`cd /opt/`

`ls`

This will display the list of directories, among which you should find the jdk-11 directory.

2. Next, create a new file for Oracle JDK 11 environment variables using the following command:

`sudo nano /etc/profile.d/jdk11.sh`

This command will open a new file in the nano text editor.

3. Enter the following lines into the jdk11.sh file:

“`

export JAVA_HOME=/opt/jdk-11.x.x.x

export PATH=$PATH:$JAVA_HOME/bin

“`

Replace the x.x.x with the actual version of the Oracle JDK 11 that you have installed on your system.

Save and close the file by pressing “Ctrl+X”, then “Y”, and lastly, “Enter”. 4.

Finally, restart your computer to apply the changes you have made. Once the computer restarts, you can check to see if the Oracle JDK 11 has been added to the PATH environment variable by executing the following command in the terminal:

`echo $PATH`

This command will display the directory paths stored in the PATH environment variable, among which you should find the Oracle JDK 11 directory.

Conclusion

By following these steps, you have successfully installed Oracle JDK 11 on your system, extracted and installed it, and added it to the PATH environment variable. This will enable you to compile and run Java programs on your system using the Oracle JDK 11.

In this tutorial, we will show you how to compile and run a simple Java “Hello World” program using Oracle JDK 11. Part I: Writing a Simple Java Hello World Program

The first step to compiling and running a Java program is to write one.

Follow these steps to create a simple “Hello World” program:

1. Open a text editor such as gedit or nano.

2. Type the following code:

“`

public class HelloWorld {

public static void main(String[] args) {

System.out.println(“Hello, World!”);

}

}

“`

3.

Save the file as HelloWorld.java. Part II: Compiling the Java Source File

To compile the Java source file, you need to use the javac command.

Follow these steps:

1. Open a terminal window.

2. Navigate to the directory where you saved the HelloWorld.java file.

3. Type the following command to compile the file:

`javac HelloWorld.java`

4.

If there are no errors in your code, the command prompt will return without any output. However, if there are errors, the compiler will provide an error message indicating the problem.

5. Once the file has been compiled, a new file named HelloWorld.class is generated in the same directory.

Part III: Running the Compiled Java Program

Now that you have compiled the Java source file, you can run the compiled program using the java command. Follow these steps:

1.

In the terminal window, navigate to the directory where you saved the HelloWorld.java file. 2.

Type the following command to run the compiled program:

`java HelloWorld`

3. The output should be “Hello, World!” displayed in the terminal window.

Conclusion

By following these steps, you have successfully compiled and run a simple Java “Hello World” program using Oracle JDK 11. You can now continue to write and run more complex Java programs using the same principles.

However, it is important to note that the Java programming language is vast, and there is much more to learn. This article provided a detailed guide on how to install Oracle JDK 11, extract and install it, and add it to the PATH environment variable.

Additionally, we covered how to compile and run a simple Java program using Oracle JDK 11. By following these steps, readers can gain a solid foundation for developing Java applications on their system with Oracle JDK 11.

The Java programming language offers an extensive range of possibilities and much to learn. Thus, it is essential to continuously explore and develop skills in this language to advance in IT careers.

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