At our CodeJam in Leipzig, Philipp Degler showed us a cool website - The Rosetta Code. It's a good place to learn new program languages or to train your skills.
On a lazy friday afternoon I created this code - https://rosettacode.org/wiki/Execute_a_system_command#ABAP It's fun to see how easy things are in some languages and how complicated ABAP can be.
It's a wiki where you have lots of tasks, a task is described like https://rosettacode.org/wiki/RSA_code . You can browse through tasks and contribute by editting the wiki. You can even browse by tasks with missing implementations in your favorite language.
Rating: *****/*****