lots of exercises in java... from https://github.com/exercism/java
Stuart Kent 16d65cbbfe Merge pull request #592 from morrme/perfect-numbers-remove-final 9 lat temu
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example/java perfect-numbers: update to canonical tests v1.0.0 (#336) 9 lat temu
main/java perfect-numbers: add to track 9 lat temu
test/java Merge pull request #592 from morrme/perfect-numbers-remove-final 9 lat temu