- Why Do I Have To Download Java Jdk Macbook
- Why Do I Have To Download Java Jdk Mac Os
- Why Do I Have To Download Java Jdk Mac Download
- Why Do I Have To Download Java Jdk Macos
This topic includes the following sections:
Why Do I Have To Download Java Jdk Macbook
System Requirements for Installing the JDK on macOS
It is better if we first understand why do we need Java installed on the system, whether it is Windows, Mac or Linux. Why Java installation is required? The Java Development Kit (JDK), officially named Java Platform Standard Edition or Java SE, is needed for writing Java programs. The JDK is freely available from Sun Microsystems (Oracle). Applicable to the Windows platform, use the following instructions to download and install the JDK: 1. Visit java.sun.com. Find a link to download the Java SE 6 (the Java Standard Edition, version 6). If you find some other version. Just make sure that you have a version numbered 6 or higher. Download the JDK, not the JRE. If you meet the hardware requirements (64-bit CPU!) and there are reasons why you must do Java 6 development on a Mac, then switching to 10.5 saves you a lot of hassle in comparison to 10.4. The only other option you presently have for JavaFX is Windows. Dismiss Join GitHub today. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.
The following are the system requirements for installing the JDK on macOS:
Any Intel-based computer running macOS.
You cannot install Java for a single user. Installing the JDK on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK on macOS.
Determining the Default JDK Version on macOS
When starting a Java application through the command line, the system uses the default JDK.
You can determine which version of the JDK is the default by entering
java -version in a Terminal window. If the installed version is 11 Interim 0, Update 0, and Patch 0, then you see a string that includes the text
11. For example:
To run a different version of Java, either specify the full path, or use the
java_home tool. For example:
$ /usr/libexec/java_home -v 11 --exec javac -version
Installing the JDK on macOS
- Download the JDK
Before the file can be downloaded, you must accept the license agreement.
- From either the browser Downloads window or from the file browser, double-click the
.dmgfile to start it.A Finder window appears that contains an icon of an open box and the name of the
- Double-click the
JDK 11.pkgicon to start the installation application.The installation application displays the Introduction window.
- Click Continue.
- Click Install. A window appears that displays the message: Installer is trying to install new software. Enter your password to allow this.
- Enter the Administrator user name and password and click Install Software.The software is installed and a confirmation window is displayed.
.dmgfile if you want to save disk space.
Uninstalling the JDK on macOSYou must have Administrator privileges.
Do not attempt to uninstall Java by removing the Java tools from
/usr/bin. This directory is part of the system software and any changes will be reset by Apple the next time that you perform an update of the OS.
- Go to
- Remove the directory whose name matches the following format by executing the
rmcommand as a root user or by using the
For example, to uninstall 11 Interim 0 Update 0 Patch 0:
$ rm -rf jdk-11.jdk
Installation FAQ on macOS Platform
This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.
1. How do I find out which version of Java is the system default?
When you run a Java application from the command line, it uses the default JDK. If you do not develop Java applications, then you do not need to worry about this. See Determining the Default JDK Version on macOS.
2. How do I uninstall Java?
See Uninstalling the JDK on macOS.
3. After installing Java for macOS 2012-006, can I continue to use Apple's Java 6 alongside the macOS JDK for Java 11?
If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:
$ export JAVA_HOME=`/usr/libexec/java_home -v 11`
Some applications use
/usr/bin/java to call Java. After installing Java for macOS 2012-006,
/usr/bin/java will find the newest JDK installed, and will use that for all of the Java-related command-line tools in
/usr/bin. You may need to modify those applications to find Java 6, or contact the developer for a newer version of the application.
4. Can I restore Apple Java after uninstalling Oracle Java?
Why Do I Have To Download Java Jdk Mac Os
Go back to Apple Java using the following instructions:
Uninstall Oracle Java by deleting the plug-in file. From a command-line, enter:
$ sudo rm -rf '/Library/Internet Plug-Ins/JavaAppletPlugin.plugin'
Create a symlink using the following command, entered on a single line:
$ sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin '/Library/Internet Plug-Ins/JavaAppletPlugin.plugin'
Why Do I Have To Download Java Jdk Mac Download
5. What happened to the Java Preferences app in Application Utilities?
The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.
What is a JDK?
The Java SE Development Kit, or JDK, is an extended subset of tools that allow for developing applications for the Java programming language.
The installation process is very straight forward:
Navigate to the Java SE Downloads page
- Choose the JDK Download:
- Agree to terms and download the Mac OS X version
- Open the dmg file and run the installation accepting all defaults
Why Do I Have To Download Java Jdk Macos
Known installation issues
There are currently no reported issues. If you are having one, please report it in the Treehouse forum.