Menu
This may be a very simple problem, but I couldn't find an answer googleing and I'm in a rush - so I'd appreciate fast code examples.
I have an environment variable on the OS I would like to read using Java code. I've tried System.getProperty, but that only seems to work for the -D variables supplied directly for the JVM.
How can my Java code read OS variables?
927
There are two ways to get the environment variable in Java, by using System properties or by using System. getEnv(). System properties provide only a limited set of predefined environment variables like java. classpath, for retrieving Java Classpath or java.
To list all the environment variables, use the command " env " (or " printenv "). You could also use " set " to list all the variables, including all local variables.
You can use any one of the following command to display and list the shell environment variables and their values. The printenv command list the values of the specified environment VARIABLE(s). If no VARIABLE is given, print name and value pairs for them all. printenv command – Print all or part of environment.
Try System.getenv(String name)
98
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
