kristofer/JavaExercism: lots of exercises in java... from https://github.com/exercism/java

lots of exercises in java... from https://github.com/exercism/java

morrme 16b0a783a7 luhn: add hints to @Ignore annotations		vor 9 Jahren
..
example/java	luhn: update to latest canonical tests	vor 9 Jahren
main/java	[#89] Move problems under "exercises" dir	vor 10 Jahren
test/java	luhn: add hints to @Ignore annotations	vor 9 Jahren