Your intelij project directory should look something like the following (intellij should generate the “out” directory and all the files in it automatically. You should only have to worry about src)
.
|-- Lab 06
|-- out
| `-- production
| |-- NimTester.class
| |-- PlayNIM.class
| `-- NIM.class
`-- src
|-- NimTester.java
|-- PlayNIM.java
`-- NIM.java