The following are the system requirements for installing the JDK and the JRE on macOS:
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- Any Intel-based computer running macOS.
- Administrator privileges.You cannot install Java for a single user. Installing the JDK and JRE on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK and JRE on macOS.
- When you install the JDK, it also installs the JRE. However, the system will not replace the current JRE with a lower version.To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. To install an earlier version of the JRE, you must first uninstall the current version. Final cut pro trial for mac os x 10.5 8. See Uninstalling the JRE on macOS.
- When you install the JRE, you can install only one JRE on your system at a time. The system will not install a JRE that has an earlier version than the current version.To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. To install an earlier version of the JRE, you must first uninstall the current version. See Uninstalling the JRE on macOS.Installing a JRE from Oracle will not update
java -version
symlinks or addjava
to your path. To do this, you must install the JDK.
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As of the release of Java for Mac OS X 10.6 Update 3, the version of Java that is ported by Apple, and that ships with Mac OS X, is deprecated. This means that the Apple-produced runtime will not be maintained at the same level, and may be removed from future versions of Mac OS X. It also provides a step-by-step guide for creating, compiling, and executing a Java program using either DrJava or the Terminal. All of the software used is freely available. You will need an Intel-based Mac running Mac OS X 10.8 (Mountain Lion) to Mac OS X 10.13 (High Sierra). You can defer steps 4–6 until Section 1.5 of the textbook.