How to modify System.out.println()

[emailkia]

Hi everyone,

How can I change the System.out.println(x) to allways act as System.out.println(this + x)

The reason is that I have a project with thousand of java-files and in every one of them there are several System.out.println(). I would like to know what java class is printing on the console. I thought maybe there is a way to modify the System.out.print/println in the main Java library so it would allways do as write the class name or some kind of clue about which class it is first and then the content of println ... But I don't know how?

Can I modify System.out.println in Java??? Is this possible at all? //Thanks

[sunde887]

You can find the java source files in the java folder on your computer, for a windows it should be located somewhere similar to

c:/program files/java/jdk/src

It may be risky however to modify the java library.

[emailkia]

Is it really possible to modify Java API source becase I thought it is not possible?

[Tolls]

Use a proper logging framework.
It's a lot easier.

Other than that you would have to write your own extension of PrintStream, overriding println() print() etc etc, and set System.out to an instance of that.

But using a logging framework would be far more sensible.

[emailkia]

Many thanks for you advices.

[KevinWorkman]

Crossposted: How to modify System.out.println()