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

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

redshirt4 ef200ce99d Remove starter implementations (#681) Removed starter implementations for exercises 21 and beyond, according to POLICIES.md.		9 gadus atpakaļ
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example/java	collatz-conjecture: fix else formatting	9 gadus atpakaļ
main/java	Remove starter implementations (#681)	9 gadus atpakaļ
test/java	collatz-conjecture: update to latest tests	9 gadus atpakaļ