Below are resourses to get familiar with the Java programming language.

Java Language courses

• edX Java edX Java
• edX Harward Intro to Computer Science Harward - Intro to Computer Science
• MIT Open Course Ware MIT OpenCourseWare
• Udacity Udacity
• Stanford Online Courses Stanford courses
• Learn Java Learn Java Online Course java 8 / 11 certification
• Hackr IO Hackr.io - All online courses
• Class Pert - Multiple online courses Class Pert - Online courses from multiple platforms
• Coder Byte Coder Byte - Coding Interview preparation
• Codecademy CodeCademy Computer Science Path
• CodeWars CodeWars
• Codingame Codingame - Learn Java by playing game* in progress
• Code Gym Code Gym - Java Syntax, Core, Collections and Multithreading
• Khan Academy KhanAcademy
• Code Combat Code Combat
• CheckIo Check IO (JS/Python)
• Eda Bit Eda Bit - Learn to Code with interactive challenges
• RoboCode RoboCode battle - java
• Solo Learn Solo Learn - Python, Java and C++
• Bento - Self taught Programmer free Bento - Self taught Programmer
• Roadmap for java developer Roadmap for Java developer - Youtube
• The New Boston The New Boston - Youtube
• Derek Banas Derek Banas - Youtube
• Programming Knowledge Programming Knowledge - Youtube
• Reddit Java tag Reddit java
• Reddit Learn Prograamming Reddit Learn Programming
• Pluralsight Pluralsight
• Reddit Learn Java Reddit Learn Java
• ebook JUnit in Action Live book
• ebooks Manning Live Book
• ebook Modern Java in Action Source code

Java Multi Threading

• Java Concurrency examples Tutorial on Callicoder

Tools

• Command Line Power Users Command Line Power Users
• Conquering the Command Line - Book Conquering the Command Line - Book
• Git Immersion Git Immersion - Learn Git
• Try Github - handbook, cheat sheet and visualize Try Github
• Learn Python https://www.learnpython.org/ https://learnpythonthehardway.org/book/
• Data Quest - Data Science https://www.dataquest.io/
• Data Science Career Guide https://elitedatascience.com/category/guides https://machinelearningmastery.com/
• AI tutorials by google https://ai.google/education/
• Python https://python.swaroopch.com/
• Learn Shell scripting Shell Scripting
• Android developement Official Android resources
• Learn to code by playing games Play Games - Learn Code
• Learn VIM by playing games Learn VIM by playing games
• Continuous Integration project [Jenkins, SonarQube, GitLab, Selenium Grid, Nexus]((https://github.com/marcelbirkner/docker-ci-tool-stack)
• Scala snippets Scala snippets
• Python Data analysis with Python
• MOOC.FI Free Mooc FI courses
• Docker DevOps with Docker

Design Patterns

java-design-patterns.com Java design patterns - 100+ patterns Github: repo Programming principles Programming principles Short java snippets - sorting, arrays etc 30 seconds of Java snippets

Interview

• Coding and Interview skills Coder Byte
• Interview Bit Interview Bit
• LeetCode Leet Code
• Interview cake Interview Cake TOC
• Algo Expert AlgoExpert - Algo and System Design
• Coursera Mastering the Software Engineering Interview
• Udemy Master the Coding Interview: Data Structures + Algorithms
• Udemy How to Pass a Coding Interview
• Udemy Master the JavaScript Interview
• LinkedIn Get Ready for Your Coding Interview
• Udemy The Coding Interview Bootcamp: Algorithms + Data Structures
• Udemy 11 Essential Coding Interview Questions + Coding Exercises!
• Udemy Java Interview Guide : 200+ Interview Questions and Answers
• Amazon ebook Cracking the Coding Interview: 189 Programming Questions and Solutions 6th Edition
• Amazon ebook Daily Coding Problem: Get exceptionally good at coding interviews by solving one problem every day
• Amazon ebook Programming Interviews Exposed: Coding Your Way Through the Interview 4th Edition
• Amazon ebook Surviving the Whiteboard Interview: A Developer’s Guide to Using Soft Skills to Get Hired
• Tips Tips for Technical Interview
• Tips Programming Interview

System Design

• Learn system design - ultimate resource ** System design primer

Java Blogs

• Java Guides Java Guides - Source codes for projects
• Java Guides Youtube Java Guides - Youtube Channel
• DZone
• FreeCodeCamp Java Posts
• Java Revisited
• Java Code Geeks
• Java World
• FreeCodeCamp Functional programming in Java
• Learn Java 8 - YouTube Tutorial
• Java Clean Code Course - Marcus Biel
• Coursera - Java Courses
• Josh Long - Spring

Online communities

Reddit Reddit Stack Overflow Stack Overflow - Java Code Ranch Code Ranch Oracle Java Community Oracle Java Community

Database

W3 Resource - SQL Tutorials W3Resourse SQL tutorials

Cryptography

• Google’s tink multi-language, cross-platform library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.