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Environment Variables

Environment Variables

Question:
How do I access environment variables?

Answer:
There is an undocumented method in java.lang.System with the signature:

public static String getenv(String)

You can use this method to fetch the stringvalues of environment variables. However,this method is deprecated and will surelysoon disappear because not all platformssupport the concept of environment variables.Instead, you should passenvironment variable values using the -Dflag to the java runtime and access themwith the getProperty() method in theSystem class.

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