* grep: WIP add exercise

* grep: implement exercise

* grep: add to config.json

* grep: update config.json and add hints

* grep: Add .keep file

* grep: improve reference solution

* grep: Make sure settings.gradle is in alphabetical order

* two-bucket: increase difficulty from 5 to 7

* move position of two-bucket in config.json file

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

* dominoes: add new exercise

It was previously unlocked by rna-transcription which is not a core exercise.
Exercises must be unlocked by core exercises.

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add new exercise

* go-counting: add exercise

* go-counting: add new exercise

* Add new exercise Variable Length Quantity

* Fix test file

* Get rid of unchecked/unsafe operations warning

* Fix typo in config.json

* Add List imoprt to starter solution

* Break up some tests into multiple lines

* Throw an IllegalArgumentException in error cases.

* Add more topics

* Indent multi-line arguments

* Add new exercise Error Handling

* Add requested changes

* Undo unnecessary change to ErrorHandlingTest.java

* Add requested changes

* Add requested changes

* Check exception message

* Add requested changes to ErrorHandlingTest.java

* Add hints.md

* Add requested suggestions

* Expand hints.md

* Add gramatical suggestions

* Add new exercise Diffie Hellman

* Add requested changes

* Add requested changes

* Add requested changes

* Implement Zipper

* Update config

* Update readme

* Minor changes

* Update all methods to package private

* new two-bucket exercise

* new two-bucket exercise

* update two-bucket exercise

* Initial

* Extract certain logic to methods

* Implement and add tests

* Use 'One' and 'Zero' in test method names instead of '1' and '0'

* Change spacing

* Add remaining tests

* Fix indentation

* Use better method for calculating rth root of x

* Move reference implementation to .meta

* Include exercise in settings.gradle

* Add README

* Add reference to config.js

* Add UUID and unlocked-by

* Make methods package-private; Ignore all but first test

* Add 'algorithms' to topics because of gcd

* Give @Ignores the proper message and put in the proper order

* Generate README using configlet

* Add version file

* Remove 'classes' from topics

* Make class package private

* Make class package private

* Use equals method and assertEquals (and toString) for comparing Rationals

* Stub out Rational with equals and toString

* Stub out methods

* Remove comment

* Implement alphametics

* Patch

* Update Alphametics to throw Exception

* Rail Fence Cipher completed

* Added @Ignore in the test file

* Build fail corrections

* Build Fail

* Added .keep file, the abscence caused build to fail

* Changes done as per the recent conventions

* Modified the config.json adding topics as well

* Update config.json

* rail-fence-encoding: add to config.json

* rail-fence-cipher: improve reference solution

* rail-fence-cipher: update with @FridaTveit's suggestions.

* Initial commit for new exercise proverb

* Add first test and source code passing it

* Add second test with short chain of consequences

* Add test for longer chain of events

* Add test asserting dictionary is not hard coded

* Add test for entire proverb

* All tests and source code complete

* Add stub due to low difficulty level

* Add proverb to config.json and settings.gradle

* Limit scope to package-private asccess level

* Set config to unlock proverb by two-fer

* Update tests to match exercism canonical data

* Fix starter implementation to only include thrown exception

* Add StringBuilder and basic refactoring

* Fix test spacing

* Refactor out extraneous if-statement

* Add curly braces around if-statement

* armstrong-numbers: add to track

* amrstrong-numbers: add readme

* armstrong-numbers: add tests and ref solution

* armstrong-numbers: add reference solution

* armstrong-numbers: improve tests as per @FridaTveit's suggestions

* armstrong-numbers: update tests

* armstrong-numbers: improve reference solution

Add topics to problem 'binary-search' #938

* isbn: implement exercise in Java track

* isbn-verifier: Update reference solution.

* isbn-verifier: Add starter implementation.

* Add @FridaTveit 's improvements

* Add some more improvements

* Protein Translation: Implemented problem in Java language stream.

* Protein-translation: Update implementation with FridaTveit's suggestions.

* Fix formatting and typesafety issues.

* Add topics to House as per #793.

* Amend 'house' topics in config.json

* Remove tag 'variables' from house topics.

* Add topic to pythagorean-triplet

* cr feedback

* Update config.json

* Update config.json

Attempt to fix space issue.

* Add topics for OCR Numbers exercise

* Limit list to 5 relevant topics

We will be scripting a number of changes to the track configuration.
This runs configlet fmt, which ensures that any further changes can be minimized.

* bank-account: added topics

* minor changes

* issue fixed

* minor bug fixed

* #941 fixed

* #941 fixed

* triangle: topics added

* '#925-addTopics'

* added topic for spiral-matrix

* added topic for spiral-matrix

* Update config.json

* added topics for run length encoding

* added changes for run length encoding

* formatting

* formatting

Close #936

Close #922

* Add topics to forth. Fixes #851

* Add topics to forth. Fixes #851
* Add topics exception_handling, strings, lists, logic to forth

* Add topics to custom set. Fixes #937

* Add topics to custom set. Fixes #937
* Add generics to list of topics for custom set

* Add topics to binary search tree. Fixes #939

* Add topics to binary search tree. Fixes #939
* Add generics to topics for binary search tree
* Remove recursion from topics for binary search tree

* #925 add topics to simple linked list exercise

* added exception_handling to topics for simple linked list

* added topics for book store

* added topic to book stores

* Issue #923 add topics to linked list

* Update linked-listst Topics with generics

* Added topics for sublist problem

* Added enumeration and generics to sublist topics

* Added topics for sublist problem