Java 101, a comprehensive guide for absolute beginners

Java 101: The Ultimate Beginner's Guide to Java Programming

Welcome to Java 101. This comprehensive course is designed to help you build a solid foundation in Java, one of the most popular and versatile programming languages. Starting from the basics, you'll learn everything from how to set up your development environment to mastering key programming concepts such as variables, loops, conditionals, methods, arrays, classes, and object-oriented principles.

Throughout the course, you’ll dive into core topics like creating methods, working with data types, understanding access modifiers, and writing efficient Java code. You'll also explore key Java programming concepts such as fields, getters/setters, constructors, and the ToString method, with practical, hands-on examples.

Whether you're a total beginner or have some programming knowledge, this course will guide you through essential Java concepts step-by-step, with clear explanations and interactive coding exercises. By the end, you'll be equipped with the skills to start writing your own Java applications and prepare for more advanced Java topics.

Concepts covered:

Basics:

Datatypes: String, Integer, Double, Boolean, Wrapper Classes and Primitives

Compilation & Java Runtime Environment

Methods

If statements / conditional logic

Operators

Arrays & ArrayLists

For Loops: traditional, enhanced, for Each

While Loops

Do - While loops

Practice project in the console with answers

Object Oriented Principles:

Classes

Objects

Constructors: no args, required args, all args

ToString method

Access modifiers: public, private, protected

Inheritance

Interfaces

Abstract Classes

Practice questions with looping / objects / conditional logic and method chaining with answers

Misc

Libraries intro

Exceptions

Final keyword