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This article shows you how to install Java on Mac OSX, and also how to do Java/JDK version switching.

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Tested with

• Mac OS 10.15.3
• JDK 8, 9, 10, 11, 12, 13 (AdoptOpenJDK)

Note
On Mac OSX, Java should installed in this folder; it is Mac's standard.

We will show you two ways to install Java JDK on Mac, via the popular Homebrew package manager and manually installation.

1. Homebrew

1.1 Install Homebrew and update it.

Cs go macbook air download. 1.2 Add adoptopenjdk/openjdk.

1.3 Find all available JDK.

The output may vary.

1.4 Java 8, 9, 10, 11, 12, 13, choose one to install.

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This example will install Java 8 and 11 for testing. Java for mac os x 10.8.2 free download windows 7.

1.5 Where Java is installed? /usr/libexec/java_home -V

Homebrew will install the JDK at folder /Library/Java/JavaVirtualMachines/, and this folder is Mac's standard folder for Java installs.

1.6 Test it, by default, Mac takes the highest version.

1.7 How to do version switching? Refer to below 3. version switching

2. Manual installation

The example shows you how to download the early access JDK 14 and install it on Mac OSX.

Steps

• Download JDK.
• Puts the JDK folder at /Library/Java/JavaVirtualMachines.
• Export JAVA_HOME.

2.1 Download the early access JDK 14 from the OpenJDK website.

2.2 Extracts tar file to /Library/Java/JavaVirtualMachines

2.3 Export JAVA_HOME.

Find out where is JDK 14.

Create or edit the existing ~/.bash_profile with a text editor.

Export JAVA_HOME, save and exit.

Reflect the changes

2.4 Test it.

3. Version Switching

In this tutorial, we installed the Java 8 and Java 11 via Homebrew (Step 1), and Java 14 manually (Step 2), so this Mac has three versions now. And the Mac is using the JDK 14.

Note
There are tools like jEnv to manage the Java version switching, but I prefer to manage with export JAVA_HOME manually, it's simple and easy to understand, no black box magic.

3.1 Create or edit the existing ~/.bash_profile with a text editor like vim or nano, export JAVA_HOME to the specified JDK we want to use on Mac.

The above changes will make JAVA_HOME point to JAVA 8.

3.2 Reflect the changes.

Done.

If we want to switch JDK version again, update the ~/.bash_profile and export JAVA_HOME to other JDK version.

References

JDK 9 & Later

Oracle's OpenJDK JDK binaries for Windows, macOS, and Linux areavailable on release-specific pages of jdk.java.net as .tar.gz or.zip archives.

As an example, the archives for JDK 13 may be found on jdk.java.net/13 and may be extractedon the command line using

$ tar xvfopenjdk-13*_bin.tar.gz

or

$ unzipopenjdk-13*_bin.zip

depending on the archive type.

JDK 8

Debian, Ubuntu,etc.

On the command line, type:

$ sudo apt-get installopenjdk-8-jre

The openjdk-8-jre package containsjust the Java Runtime Environment. If you want to develop Javaprograms then please install the openjdk-8-jdk package.

Fedora, OracleLinux, Red Hat Enterprise Linux, etc.

On the command line, type:

$ su -c 'yum installjava-1.8.0-openjdk'

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Reflect the changes

2.4 Test it.

3. Version Switching

In this tutorial, we installed the Java 8 and Java 11 via Homebrew (Step 1), and Java 14 manually (Step 2), so this Mac has three versions now. And the Mac is using the JDK 14.

Note
There are tools like jEnv to manage the Java version switching, but I prefer to manage with export JAVA_HOME manually, it's simple and easy to understand, no black box magic.

3.1 Create or edit the existing ~/.bash_profile with a text editor like vim or nano, export JAVA_HOME to the specified JDK we want to use on Mac.

The above changes will make JAVA_HOME point to JAVA 8.

3.2 Reflect the changes.

Done.

If we want to switch JDK version again, update the ~/.bash_profile and export JAVA_HOME to other JDK version.

References

JDK 9 & Later

Oracle's OpenJDK JDK binaries for Windows, macOS, and Linux areavailable on release-specific pages of jdk.java.net as .tar.gz or.zip archives.

As an example, the archives for JDK 13 may be found on jdk.java.net/13 and may be extractedon the command line using

$ tar xvfopenjdk-13*_bin.tar.gz

or

$ unzipopenjdk-13*_bin.zip

depending on the archive type.

JDK 8

Debian, Ubuntu,etc.

On the command line, type:

$ sudo apt-get installopenjdk-8-jre

The openjdk-8-jre package containsjust the Java Runtime Environment. If you want to develop Javaprograms then please install the openjdk-8-jdk package.

Fedora, OracleLinux, Red Hat Enterprise Linux, etc.

On the command line, type:

$ su -c 'yum installjava-1.8.0-openjdk'

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The java-1.8.0-openjdk packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.8.0-openjdk-devel package.

JDK 7

Debian, Ubuntu,etc.

On the command line, type:

$ sudo apt-get installopenjdk-7-jre

The openjdk-7-jre package containsjust the Java Runtime Environment. If you want to develop Javaprograms then install the openjdk-7-jdkpackage.

Fedora, OracleLinux, Red Hat Enterprise Linux, etc.

On the command line, type:

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$ su -c 'yum installjava-1.7.0-openjdk'

The java-1.7.0-openjdk packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.7.0-openjdk-devel package.

JDK 6

Debian, Ubuntu,etc.

On the command line, type:

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$ sudo apt-get installopenjdk-6-jre

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The openjdk-6-jre package containsjust the Java Runtime Environment. If you want to develop Javaprograms then install the openjdk-6-jdkpackage.

Fedora, OracleLinux, Red Hat Enterprise Linux, etc.

On the command line, type:

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$ su -c 'yum installjava-1.6.0-openjdk'

The java-1.6.0-openjdk packagecontains just the Java Runtime Environment. If you want to developJava programs then install the java-1.6.0-openjdk-devel package.

BSD Port

For a list of pointers to packages of the BSD Port forDragonFly BSD, FreeBSD, Mac OS X, NetBSD and OpenBSD, please seethe BSD porting Project's wikipage.