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When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'. The one exception is that the system will not replace the current JRE with a lower version. Installing the JDK also installs the JRE. You cannot install Java for a single user. Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. System RequirementsĪny Intel-based computer running OS X 10.8 (Mountain Lion) or later. See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X. See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8. Java offers the rich user interface, performance, versatility, portability, and security that today’s applications require. The Java SE Development Kit 8 lets you develop and deploy Java applications on desktops and servers, as well as in today's demanding embedded environments. This Project is sponsored by the Build Group. The goal of this Project is to develop updates to JDK 8. If the GlassFish Server Open Source Edition 4.1.1 installation page opens, accept the default installation directory or specify another installation location. Note: If the JDK version is older than the recommended JDK 8, download and install the latest JDK update from Java SE Downloads page and restart the NetBeans IDE installer.

The system will not install a JRE that has an earlier version than the current version.This page describes how to install and uninstall JDK 8 for OS X computers. When you install the JRE, you can install only one JRE on your system at a time. To install an earlier version of the JRE, you must first uninstall the current version. To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS.

However, the system will not replace the current JRE with a lower version. When you install the JDK, it also installs the JRE. Administrator privileges are required to install the JDK and JRE on macOS. Installing the JDK and JRE on macOS is performed on a systemwide basis for all users. The following are the system requirements for installing the JDK and the JRE on macOS: