Using maven. Add example with test.
Add excercise.
Add excercises.
Add excercises with tests.
Split excercises into multiple files.
Refactor tests and test data.
Add exercice for adapters in Java, to be compared with type classes.
Fixed maven build. Now working with Scala.
Initial implementation of Scala excercises for type classes and traits.
Refactor and Implement tests. Implement Scala excercises.
Implement excercise 3 with tests in Scala.
Implement excercise 4 with tests in Scala.
Remove unnecassary config in the pom.
2: Remove unnecassary config in the pom.
Fix typo in package names.
Write readme,
Fix readme.
Fix readme 2.
Cleanup and add Scala example.