The following are the system requirements for installing the JDK and the JRE on macOS:
- 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. 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.Note:Installing a JRE from Oracle will not update
java -version
symlinks or addjava
to your path. To do this, you must install the JDK.
The most reliable way to launch the installer is from a terminal like this: java -jar i2pinstall0.9.47.jar.This will launch the GUI installer. Depending on how your computer is set up, you may be able to start the installer by double-clicking the 'i2pinstall0.9.47.jar' file or right-clicking the file and selecting 'Open with Java'.
Why Cant I Download And Install Java 8 On Mac Sierra 10.13
- If you run into problems installing Java on Windows 7 or Windows 8, try installing Java as an administrator. To do so, download the offline installer and save it to an empty folder on your hard disk.
- Am trying to upgrade Lion to Sierra. The download page says Sierra is “Installed”. I launch the installer, say I agree, then click on “Install”. It asks for a password. Whatever I type for the password, including the correct one, it just loops back to the “Install” button. Nothing else happens.
- Just bought a Mac Mini last night and upon setting it up, learned that there’s an update to iOS Catalina. I downloaded it, can’t install it. I downloaded it again, can’t install it. I downloaded it again, can’t install it. I’m pretty sure Apple has billions in cash and therefore can afford to fix this ridiculous problem.