Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Objects Meet Objects Final

I don't understand the second printf, why is there a common after before?

I don't understand this-----> before, dispenser.getCharacterName(),

like I just don't get it, couldn't you just write before? And if not can you please explain what the common after before is? what does that do?

1 Answer

Binyamin Friedman
Binyamin Friedman
14,615 Points

All arguments to a method (like printf) are separated by a comma. The printf method requires a string with placeholders and variables for each placeholder.

Example: System.out.printf("%s is a string placeholder. %d is a number placeholder", variableForPlaceholder1, variableForPlaceholder2);