-D setProperty OPTION

[Sem]

Can you please give me more INFO how am I going to use

-D on command line to compile to add setProperty?

Thank you

-sem

 

[Alan Krueger]

Can you please give me more INFO how am I going to use
-D on command line to compile to add setProperty?

The Java command-line allows you to specify system properties with the
-D<name>=<value> option. You can also programmatically set system
properties using the System.setProperty method.

I'm afraid I can't make out what you're asking beyond that, though.

 

[Mark Jeffcoat]

Can you please give me more INFO how am I going to use

-D on command line to compile to add setProperty?

It's used at run time, not compile time.

public class Demo {
public static void main(String[] args) {
System.out.println(System.getProperty("foo"));
}
}

java -Dfoo="meaningful value" Demo

Will print "meaningful value" on stdout.


(If you have a property you want to set at compile time,
you can just write it directly into the program you're
compiling.)