If message 'To open javac, you need a Java runtime' appears, select 'Install' and follow the instructions to install JDK.

If message 'command not found' appears, JDK is NOT installed.

If the JDK version is prior to 1.8, proceed to Step 2 to install the latest JDK otherwise, proceed to 'Step 3: Write a Hello-world Java

If a JDK version number is returned (e.g., JDK x.x.x ), then JDK has already been installed.

To check if JDK has been installed, open a 'Terminal' (Search 'Terminal' or Finder ⇒ Go ⇒ Utilities ⇒ Terminal) and issue this command: javas - version You can get more information by clicking the links to visit the relevant pages on the vendors website.Step 1: Check if JDK has been Pre-Installed The links provided point to pages on the vendors websites. The information is provided 'As Is' without warranty of any kind. Java Runtime Environment for Mac (1.8.341)ĭisclaimer: This webpage is intended to provide you information about patch announcement for certain specific software products. Java Runtime Environment for Mac (1.8.333) Java Runtime Environment for Mac (1.8.331) Java Runtime Environment for Mac (1.8.321) Java Runtime Environment for Mac (1.8.311) Java Runtime Environment for Mac (1.8.301)

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