Zoom on coding platform

coding platform

non-exhaustive list of coding platform, coding contest and so on

• HackerRank : https://www.hackerrank.com/dashboard
• KataCoda : https://www.katacoda.com/
• TechIo : https://tech.io/
• Exercism : http://exercism.io/
• Code Fight : https://codefights.com/home
• CodingGame : https://www.codingame.com/start
• Kattis : https://open.kattis.com/
• Codility : https://app.codility.com/programmers/
• CodeChef : https://www.codechef.com/
• Interviewbit : https://www.interviewbit.com/courses/programming/
• CodeWars : http://www.codewars.com
• Labex : https://labex.io/
• Geeks for geeks : https://www.geeksforgeeks.org/
• LeetCode https://leetcode.com/
• Cyber Dojo https://cyber-dojo.org/dojo/index/
• CodeGym https://codegym.cc/
• CodeAcademy https://www.codecademy.com/
• CodeWar https://www.codewars.com/?language=java
• CodeForce https://codeforces.com/problemset
• HackerEarth https://www.hackerearth.com/
• HackAttic https://hackattic.com/
• Kaggle (datascientist, machine learning) https://www.kaggle.com/
• Greps A fresh way to analyze and measure Java skills https://www.greps.com/
• SadServer, train your debug skills with practical use cases https://sadservers.com
• Wolfram challenges https://challenges.wolframcloud.com/

online courses with practical projetcs

• Jetbrain academy https://hyperskill.org/tracks
• Spring academy https://spring.academy/

Build complete projects, practical learnings

• Coding Challenge https://codingchallenges.fyi/
• CodeCrafters https://app.codecrafters.io/catalog and https://codecrafters.io/
• KillerCoda https://killercoda.com/
• KillerShell https://killer.sh/

One step beyond

Online tools and services for executing and grading untrusted source code

• Judge0 https://judge0.com/ and Judge0 Github
• Online Java compiler https://jaxenter.com/top-6-java-compilers-students-141549.html
• Codiva https://www.codiva.io/
• JDoodle https://www.jdoodle.com/
• RexTester http://rextester.com/l/java_online_compiler
• Online GDB https://www.onlinegdb.com/
• Browxy http://www.browxy.com/
• IDEOne https://ideone.com/
• Godbolt https://godbolt.org/

In coding platform trend Eclipse Che

Some manual Kata references

• Emily Bache GitHub repository https://github.com/emilybache
• Some training Kata list https://sammancoaching.org/kata_descriptions/index.html
• Kata from CodingDojo site http://codingdojo.org/kata/ to contribute see https://github.com/codingdojo-org
• Awesome Kata https://github.com/gamontal/awesome-katas
• https://kata-log.rocks/
• https://blog.ippon.fr/2021/04/12/mon-catalogue-de-katas/
• Java Kata
  • https://github.com/BNYMellon/CodeKatas
  • https://github.com/c-guntur/java-katas
  • https://github.com/forax/kata-java17
  • https://github.com/forax/kata-restrospective-11
  • https://github.com/cluePrints/java-threading-kata
  • https://github.com/philou/concurrency-kata
  • https://github.com/WildCodeSchool/java-katas
  • https://github.com/codecop/golfed-game-of-tron
  • https://github.com/aatwi/MarsRover-Refactoring-Kata
  • https://github.com/codecop/Book-Discounts-Refactoring-Kata
  • https://github.com/HouariZegai/clean-code/tree/master/katas
  • https://github.com/emilybache/DiamondKata
  • https://github.com/novoda/dojos
  • https://github.com/emilybache/Email-Sender-Refactoring-Kata
  • Stream, Java 17 kata
  • Java OOP Kata
  • https://github.com/sandromancuso/testing_legacy_code and more from Sandro Mancuso https://github.com/sandromancuso?tab=repositories
  • https://github.com/JosePaumard/JosePaumard.github.io/tree/master/katas
  • https://github.com/YDanot?tab=repositories&q=&type=&language=java&sort=
  • https://github.com/Egga-zz/katas/tree/master/modules
  • https://github.com/klaube/kata
  • https://github.com/AnnaWeakclaw/refactoringGolf
  • https://github.com/victorrentea/kata-trivia-java
• C# Kata
  • https://github.com/ardalis/kata-catalog

Other practises exercices

• Refactoring legacy code https://github.com/jbrains/trivia, see Devoxx Video https://www.youtube.com/watch?v=xXvuBX1bVh8

Prepare interview

Over that sample of Google resources reco to prepare their interview :
https://levelup.gitconnected.com/i-got-rejected-by-google-1ab8f7a4908e

Online material to prepare FAANG (Facebook aka Meta, Amazon, Apple, Netflix, Google) interviews :
https://medium.com/@SunnyB/resources-for-prepping-for-interviews-dc9f23bb41fb

Some Github repositories to help in preparation :

• Coding interview guide https://github.com/jwasham/coding-interview-university
• Another one https://github.com/yangshun/tech-interview-handbook
• Another other one https://github.com/Olshansk/interview
• Leetcode Java answer https://github.com/gouthampradhan/leetcode
• Web guide on how it works https://github.com/vasanthk/how-web-works

Questions samples in interview design :

• https://medium.com/javarevisited/25-software-design-interview-questions-to-crack-any-programming-and-technical-interviews-4b8237942db0
• https://www.java67.com/2016/07/top-5-object-oriented-design-interview-questions.html
• https://javarevisited.blogspot.com/2022/03/how-to-design-trade-position-calculator.html
• Threading Questions in Job Interviews
• Java Interview Questions for Programmers
• Microservices Interview Questions and Answers
• Top 20 System Design Interview Questions for Java Programmers
• Top 100 Data Structure and Algorithm Interview Questions for Java Programmers
• 20 Design Patterns and Software Design Interview Questions for Programmers
• 130+ Java Interview Questions Answers for 2 to 7 Year Experienced Programmers
• Top 50 Java Thread Interview Questions Answers for Experienced
• Java Programming Mock Tests
• Some Kata
• Data Structure and Algorithms Interview Questions for Programmers

Spring interview quesitons sample :

• https://www.java67.com/2012/08/spring-interview-questions-answers.html
• https://javarevisited.blogspot.com/2020/05/top-20-spring-boot-interview-questions-answers.html