RandomJava 
This is a Maven project containing a bunch of Random Java programs that I used, wrote from time to time.
Build instructions: If you get compile/run/IntelliJ errors, e.g. ClassNotFoundException when running in IntelliJ, just rm your package from your local machine, use IntelliJ to directly open: File -> New -> Project from Version Control -> GitHub, then configure JDK8, then you'll fly with colors! ^ ^
| Package/Theme | Code |
|---|---|
| Avro | Avro code |
| Java annotations | annotations |
| Design Patterns | Design patterns |
| Java Exceptions | exceptions |
| Some interview questions | questions |
| Java 8 tutorials | Java 8 |