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 Basics Getting Started with Java Strings, Variables, and Formatting

Ji-Yeong Kim
Ji-Yeong Kim
223 Points

printf and console is not working. What should I do?

There's something wrong on this console. I typed correctly what the instructor told me to do. There must be a bug.

// I have setup a java.io.Console object for you named console
String firstName = "Steven";
Console.printf("%s can code in Java!\n", firstName);

1 Answer


Java is a case-sensitive language, so that means if something is capitalized that shouldn't be, it won't work.

You have:

Console.printf("%s can code in Java!\n", firstName);

And we should be using console here, like this:

console.printf("%s can code in Java!\n", firstName);

Hopefully, this helps! Good Luck!!