Some of my past projects.
https://github.com/weih201/code-repos/tree/master/java%20repo
https://github.com/weih201/code-repos/tree/master/python%20repo
https://github.com/weih201/code-repos/tree/master/r%20repo
https://github.com/weih201/code-repos/tree/master/scala
https://github.com/weih201/code-repos/tree/master/other%20programming
https://github.com/weih201/code-repos/tree/master/algorithm%20analysis%20and%20design