The modules folder contains a project that has been separated in modules, com.udacity.flight is a small module stubbing a search engine for getting flights availability, similarly com.udacity.hotel simulates a search engine for hotel availability.

com.udacity.packagesearch uses the previous two modules to get a list of available hotels and flights and show it to the user to create a package.

The project can be compiled when by running this command from the modules directory:

javac -d out --module-source-path . --module com.udacity.flight,com.udacity.hotel,com.udacity.packagesearch

The information on all module-info.java is missing. So trying to compile it will fail.

1. Running the compile command shows visibility errors, add the missing requires and exports to each module-info.java
2. After adding them try to compile again, if everything works run the program with the next command:

java --module-path out --module com.udacity.packagesearch/com.udacity.packagesearch.search.Main

3. Uncomment the code related to manager information, and compile again, the code compiles, but what happens when you run it?

4. Fix the previous error by adding an opens to sentence to the com.udacity.hotel module definition.