Contests where Java code is allowed

Name
Programming Basics Exam - 17 July 2016
Polymorphism - Exercises
Interfaces and Abstraction - Exercises
Generics - Exercises
Enumerations and Annotations - Exercises
Iterators and Comparators - Exercises
Object Communication and Events - Exercises
Reflection - Exercises
Java Basics - Lab
Open Closed and Liskov Principle