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

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

Ronak Lakhotia 06655c3751 Add test to list of nested lists. (#1478) * Update version file v2.2.0 --> v2.3.0 * Add new test for list of nested list. * Add updated test * Make changes to code and make it more readable * Fix data set and indentation * Fix indentation error * Fix Bug		vor 8 Jahren
..
src/reference/java	Restructure exercise directory	vor 9 Jahren
hints.md	list-ops: add hint of using static methods per #378	vor 9 Jahren
version	Add test to list of nested lists. (#1478)	vor 8 Jahren