JDK points to wrong JRE

I had a portable JDK on a flashdrive and brought it over to my computer, however, it can not be开发者_运维知识库 used because the JDK points to the JRE on the flashdrive. How do I change this? Where are the java configuration files and what are they called?

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Set the (system) environment variable to point to the flashdrive JDK location. Also if you open a command prompt after doing this you will be able to execute javac and see some output.

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If you are using Windows, try opening Control Panel and clicking on "Java". You can edit a number of different settings from this panel.

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simplest way in windows creat batch file

set JDK_HOME= .\ set PATH=%PATH%;%JDK_HOME%\BIN