Kata Library: Java Practice
Sign Up
Time to claim your honor
Training
Practice
Complete challenging
Kata
to earn honor and ranks. Re-train to hone technique
Freestyle Sparring
Take turns remixing and refactoring others code through
Kumite
Community
Leaderboards
Achieve honor and move up the global leaderboards
Chat
Join our
Discord
server and chat with your fellow code warriors
Discussions
View our
Github Discussions
board to discuss general Codewars topics
About
Docs
Learn about all of the different aspects of Codewars
Blog
Read the latest news from Codewars and the community
Log In
Sign Up
Library
Collections
Newest
Oldest
Popularity
Positive Feedback
Most Completed
Least Completed
Hardest
Easiest
Name
Relevance
Low Satisfaction
All
My Languages
Agda (Beta)
BF (Beta)
C
CFML (Beta)
Clojure
COBOL (Beta)
CoffeeScript
CommonLisp (Beta)
Coq
C++
Crystal
C#
D (Beta)
Dart
Elixir
Elm (Beta)
Erlang (Beta)
Factor (Beta)
Forth (Beta)
Fortran (Beta)
F#
Go
Groovy
Haskell
Haxe (Beta)
Idris (Beta)
Java
JavaScript
Julia (Beta)
Kotlin
λ Calculus (Beta)
Lean
Lua
NASM
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
Pascal (Beta)
Perl (Beta)
PHP
PowerShell (Beta)
Prolog (Beta)
PureScript (Beta)
Python
R (Beta)
Racket
Raku (Beta)
Reason (Beta)
RISC-V (Beta)
Ruby
Rust
Scala
Shell
Solidity (Beta)
SQL
Swift
TypeScript
VB (Beta)
Approved & Beta
Approved
Beta
All
Kata I have not trained on
Kata I have not completed
Kata I have completed
8 kyu
easiest
7 kyu
6 kyu
5 kyu
4 kyu
3 kyu
2 kyu
1 kyu
hardest
Algorithms
17
Arrays
1
Combinatorics
1
Data Structures
2
Fundamentals
6
Geometry
17
Graph Theory
2
Logic
3
Mathematics
17
Performance
1
Strings
1
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
17 Kata Found
6 kyu
A Fun Way of Finding Pythagorean Triples
304
brodiemark
Geometry
Mathematics
Algorithms
8 kyu
Points of Reflection
10,961
webtechalex
Mathematics
Geometry
Algorithms
6 kyu
Triangles made of random points
240
Muchacos
Mathematics
Geometry
Algorithms
Arrays
Performance
Fundamentals
5 kyu
Integer triangles
597
raulbc777
5 Issues Reported
Algorithms
Mathematics
Data Structures
Geometry
7 kyu
Blood Moon
1,187
sazzadshopno
Mathematics
Geometry
Algorithms
6 kyu
Points in the circle
2,078
hubencu_st
1 Issue Reported
Geometry
Algorithms
Logic
Mathematics
Fundamentals
3 kyu
Screen Locking Patterns
5,046
rsalgado
2 Issues Reported
Mathematics
Combinatorics
Geometry
Algorithms
Graph Theory
7 kyu
Area of a Circle
12,393
austinc
3 Issues Reported
Fundamentals
Algorithms
Geometry
Mathematics
6 kyu
Find the in-between point
766
geoffp
Fundamentals
Geometry
Mathematics
Algorithms
4 kyu
Coloured Lattice Points Forming Coloured Triangles
579
raulbc777
1 Issue Reported
Fundamentals
Data Structures
Algorithms
Geometry
Mathematics
Logic
Strings
6 kyu
Counting Rectangle Triangles
452
raulbc777
2 Issues Reported
Fundamentals
Mathematics
Geometry
Algorithms
Logic
7 kyu
2D Vector Mapping
472
David Gildour
1 Issue Reported
Mathematics
Algorithms
Geometry
7 kyu
Cartesian coordinates from degree angle
1,665
user4190256
1 Issue Reported
Algorithms
Mathematics
Geometry
3 kyu
Closest pair of points in linearithmic time
1,580
kirjs
1 Issue Reported
Algorithms
Geometry
Mathematics
Beta
Find the centre of a sphere
14
geoffp
1 Issue Reported
Status:
Waiting for issues to be resolved
Estimated Rank:
4 kyu
Algorithms
Geometry
Mathematics
2 kyu
Areas of Voronoi cells
228
geoffp
Geometry
Mathematics
Algorithms
Graph Theory
6 kyu
Wind component calculation
926
tpatja
4 Issues Reported
Mathematics
Geometry
Algorithms
Confirm
Collect:
undefined
Loading collection data...