Can one set System property programmatically?

[Bruce Jin]

I can set up system property at command line (note that test2 is the package name)
C:\mrcgui>java -Djava.util.logging.config.file=test2/mylog.properties test2.TestLogging
It works. But when I try to set property in the code, it never worked.
=== code ==
System.setProperty("java.util.logging.config.file", "test2/mylog.properties");
pf = System.getProperty("java.util.logging.config.file");
System.out.println("pf=" +pf); //prints test2/mylog.properties
Logger logger = Logger.getLogger("test2");
=== end of code ===
The logger still uses the default logger.
Why?
Thanks.

[Dave Landers]

It probably initialized from the system property before you reset it.