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

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

Stuart Kent caa3b3e5d5 Merge pull request #593 from morrme/mine-remove-final minesweeper: remove "final" from class declaration		9 lat temu
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example/java	minesweeper: add to track	9 lat temu
main/java	minesweeper: add to track	9 lat temu
test/java	Merge pull request #593 from morrme/mine-remove-final	9 lat temu