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

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

FridaTveit f831e02f27 Merge pull request #608 from exercism/clock-version clock: tag test files with current version		9 lat temu
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example/java	Clock: add to track (#260)	9 lat temu
main/java	Clock: add to track (#260)	9 lat temu
test/java	Merge pull request #608 from exercism/clock-version	9 lat temu