Java and Kotlin Code samples used on cloud.google.com
Just Announced - "Learn Spring Security OAuth":
Source code for the Datalogics C++, Java, and .NET interface of the Adobe PDF Library
LeetCode of algorithms with java solution(updating).
Design patterns implemented in Java
All Algorithms implemented in Java
Everything you need to know to get the job.
Source code of the chapters of the book 3D Game Development with LWJGL 3
From Java To Kotlin - Your Cheat Sheet For Java To Kotlin