How to install openjdk 17 on macOS via terminal command?

Installing OpenJDK 17 on macOS via Terminal Command

Step 1: Update Your Terminal

Before installing OpenJDK 17, make sure your terminal is up-to-date. You can update your terminal by running the following command:

/bin/bash -c "echo 'Updating package list...' | while read -r line; do echo "$line"; done | apt-get update"

Step 2: Install Java Development Kit (JDK)

To install OpenJDK 17, you need to install the JDK. You can download the JDK from the official Oracle website:

• Go to the Oracle website and download the JDK for macOS.
• Once the download is complete, extract the archive to a directory of your choice.

Step 3: Install OpenJDK 17

Now that you have the JDK installed, you can install OpenJDK 17. You can do this by running the following command:

./jdk-17.0.2.jdk

Step 4: Set the System Environment Variables

To use OpenJDK 17, you need to set the system environment variables. You can do this by running the following command:

export PATH=$PATH:/usr/local/lib/jdk-17.0.2.jdk/bin

export JAVA_HOME=/usr/local/lib/jdk-17.0.2.jdk

export JAVACMD=/usr/local/lib/jdk-17.0.2.jdk/bin/javac

Step 5: Set the System Library Path

To use OpenJDK 17, you need to set the system library path. You can do this by running the following command:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/jdk-17.0.2.jdk/lib

Step 6: Verify the Installation

To verify the installation, you can run the following command:

java -version

This should print the version of OpenJDK 17 that you just installed.

Step 7: Create a New Java Project

To create a new Java project, you can use the following command:

javac -d . Main.java

This will create a new Java project called Main.java in the current directory.

Step 8: Compile and Run the Project

To compile and run the project, you can use the following commands:

javac Main.java

java Main

This should compile the Main.java file and run the Main class, printing the output to the console.

Table: System Environment Variables

Variable	Description
PATH	The path to the Java bin directory.
JAVA_HOME	The path to the Java installation directory.
JAVACMD	The path to the javac command.
LD_LIBRARY_PATH	The path to the library directory.

Table: System Library Path

Variable	Description
LD_LIBRARY_PATH	The path to the library directory.

Step 9: Update the System Library Path

To update the system library path, you can use the following command:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/jdk-17.0.2.jdk/lib

Step 10: Verify the System Library Path

To verify the system library path, you can use the following command:

java -version

This should print the version of OpenJDK 17 that you just installed, along with the system library path.

Conclusion

Installing OpenJDK 17 on macOS via terminal command is a straightforward process that requires some basic knowledge of the terminal and the Java development environment. By following the steps outlined in this article, you should be able to install OpenJDK 17 and use it to create and run Java projects. Remember to update your system library path and set the system environment variables to ensure that OpenJDK 17 works correctly.