Check if you are on 32-bit OS or 64-bit OS.If you get file corrupt message, download the installation file again.Temporarily turn off firewalls and antivirus software.Check if there are any pre-existing Java installs.If you are in windows, java -version is working and jshell -version is not working, directly jump to the section Setting PATH environment variable in Windows Troubleshooting Java Version Successful JShell Version Successful Launching JShell Error In Launching JShell cmd + space -> Type terminal -> Press enter.If you are on Mac or other OS, launch up Terminal.Or use Ctrl + Esc, and type in cmd and launch up command.Select All Programs -> Accessories > Command Prompt.

If you are on Windows : Open the Command Prompt window by.Installing Java Google for 'java jdk download' Land on the Oracle JDK Download Site Accept License Agreement Download JDK for Your Specific Operating System Launch the Downloaded file Java Installation Screens Choose Defaults and Copy Install Location Choose Defaults and Copy Install Location Congratulations Verify Java and JShell Installation Launch Terminal or Command Prompt Detailed Instructions

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