Java

Official site: http://www.oracle.com/technetwork/java/javase/overview/index.html

• Firstly, you should understand the concept of object-oriented programming (OOP):

  • A great car analogy: How to explain OOP concepts to a non technical person?

  • A more detailed version: Java Tutorial: Don’t Fear the Oop!

• Download and install Java SE Development Kit (JDK)

• IDE: Eclipse or IntelliJ

• Official Java Tutorial by Oracle

Courses

• Treehouse – Java Basics Course

• Udemy – Java Tutorial for Complete Beginners

• Udemy – Programming Java for Beginners – The Ultimate Java Tutorial

Tutorials (Free)

• Eclipse And Java Video Tutorials

• Learn Java – Free Interactive Java Tutorial

• YouTube Videos – Java (Beginner) Programming Tutorials

Books

• Java: A Beginner’s Guide

• Thinking in Java (Get the older edition for free here)
• Effective Java

• After learning the basics & fundamentals: Head First Java

• If you are serious in mastering Java: Java The Complete Reference

• Think Java (Free)

If you want to create Android Apps:

• Download Android Studio and SDK Tools
• Official getting started guide
• Courses

  • Treehouse – Build a Simple Android App
  • Udemy – Learn Android Programming From Scratch