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Property

aakash bhatt
Ranch Hand

Joined: Jan 09, 2003
Posts: 182
Could I have an example of how to use java.util.Property
Is it the same used for storing an environment variable.

My Queries:
1) Say i had stored my key-value values in Project.properties file
Now in my code how do i read the values from the Project.properties files

2) Can i add some values dynamically from code to the Project.properties

3) Could I get the values of Project.properties from System.getProperty() or could i load the project.proerties from System.getProperty()

Thanks,
aakash
William Brogden
Author and all-around good cowpoke
Rancher

Joined: Mar 22, 2000
Posts: 12791
    
    5
If you will look at the JavaDocs for java.util.Properties, you will see that it has the load( InputStream ), store( OutputStream ) and setProperty( key, value) methods. These take care of 1) and 2)
You should not be trying to use the System properties for your specific application. Use a separate properties file.
Bill
Peter Chase
Ranch Hand

Joined: Oct 30, 2001
Posts: 1970
Originally posted by aakash bhatt:
Is it the same used for storing an environment variable.

As far as I know, Java does not support OS environment variables, except via a deprecated method on java.lang.System. It has been deprecated since an early version and may not do anything at all now. Certainly, you should not use it.

You can use platform-specific code to get/set OS environment variables, with JNI.

Anyone know why OS environment variables are unsupported by Java? What platform didn't like them? The concept exists in all DOS/Windows/Unix/Linux/MacOSX.


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subject: Property