Hi i'm learning the Sedgewick's book for Java and i want to use "stdlib.jar" in "Intelij Idea".
I simply go to Project Structure>Modules>Dependencies and add it to the list but when i want to write some code in "Intellij Idea", it seems that it doesn't work and i can't use the codes i want.
I've searched the internet and didn't find anything useful.
Here's a pic:
Help me if you can.