How to read Enviroment variable in Java?

[Nikhil Barthwal]

Hi,

I have a Java program that needs to access the value of variable
PATH (Set in Unix enviroment by setenv or DOS enviroment by PATH
statement). How do I access it in Java?

Thanks in advance,

Nikhil

[Dmytro Sheyko]

"Nikhil Barthwal" <nb**@iitk.ac.in> wrote in message
news:9d**************************@posting.google.c om...

Hi,

I have a Java program that needs to access the value of variable
PATH (Set in Unix enviroment by setenv or DOS enviroment by PATH
statement). How do I access it in Java?

You may execute (using method Runtime.exec()) the following command line
Windows 95/98/Me: command.com /c set
Windows NT/2000/XP: cmd /c set
Unix: env
and then parse output. It must have format like this:
<variable name>=<variable value>

By the way, Apache Ant uses this aproach. Look at:
org/apache/tools/ant/taskdefs/Execute.java

[hiwa]

nb**@iitk.ac.in (Nikhil Barthwal) wrote in message news:<9d**************************@posting.google. com>...

Hi,

I have a Java program that needs to access the value of variable
PATH (Set in Unix enviroment by setenv or DOS enviroment by PATH
statement). How do I access it in Java?

Thanks in advance,

Nikhil

Older Java and the newest 1.5 have getenv() method in the java.lang.System class.