Java is a general-purpose, concurrent, class-based, object-oriented, high-level programming language and computing platform first released by Sun Microsystems in 1995. It’s related in some ways to C and C++, in particular with regard to its syntax, and borrows a few ideas from other languages. Java applications are compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture.
Java is designed to be simple enough that many programmers can quickly become proficient in the language. It’s one of the most popular programming languages especially for client-server web applications.
Some popularity indexes show that Java holds the top spot with C. The respected TIOBE Index shows Java remains the most popular programming language.
Here’s our recommended tutorials to learn Java. If you’re looking for free Java programming books, check here.
1. Introduction to Computer Science using Java by Bradley Kjell, Central Connecticut State University
Introduction to Computer Science using Java is a first course in Computer Science using the programming language Java. It’s intended for high school AP Computer Science classes, for university level CS-I classes, and for self study.
There are about 20 pages per chapter. If you spend about 3 minutes per page each chapter will take about 60 minutes, or longer if you copy and run some of the programs.
2. The Java Tutorials by Oracle
The Java Tutorials are practical guides for programmers who want to use the Java programming language to create applications. They include hundreds of complete, working examples, and dozens of lessons. Groups of related lessons are organized into “trails”.
3. The Java EE Tutorial by Oracle
The Java EE Tutorial teaches and demonstrates the Java EE features that are used to develop enterprise applications.
This tutorial is intended for programmers interested in developing and deploying Java EE 8 applications. It covers the technologies comprising the Java EE platform and describes how to develop Java EE components and deploy them on the Java EE Software Development Kit (SDK).
4. Google Java Style Guide by Google
This document serves as the complete definition of Google’s coding standards for source code in the Java Programming Language. A Java source file is described as being in Google Style if and only if it adheres to the rules herein.
Like other programming style guides, the issues covered span not only aesthetic issues of formatting, but other types of conventions or coding standards as well. However, this document focuses primarily on the hard-and-fast rules that we follow universally, and avoids giving advice that isn’t clearly enforceable (whether by human or tool).
5. Java language basics by IBM
The two-part Introduction to Java programming tutorial is meant for software developers who are new to Java technology. Work through both parts to get up and running with object-oriented programming (OOP) and real-world application development using the Java language and platform.
6. Java Video Tutorial by Derek Banas
A good series of videos to learn all about Java.
7. Learn Java in Y minutes
Java is a general-purpose, concurrent, class-based, object-oriented computer programming language.
All tutorials in this series:
|Free Programming Tutorials|
|ABAP||Advanced Business Application Programming|
|Ada||ALGOL-like programming language, extended from Pascal and others|
|Agda||Dependently typed functional language based on intuitionistic type theory|
|Alice||Educational language with an integrated development environment|
|Arduino||Inexpensive, flexible, open source microcontroller platform|
|Assembly||As close to writing machine code without writing in pure hexadecimal|
|Awk||Versatile language designed for pattern scanning and processing|
|Bash||‘Bourne-Again-SHell’ is both a shell and programming language|
|BASIC||Family of general-purpose, high-level programming languages|
|C||General-purpose, procedural, portable, high-level language|
|C++||General-purpose, portable, free-form, multi-paradigm language|
|C#||Combines the power and flexibility of C++ with the simplicity of Visual Basic|
|Chapel||Parallel-programming language in development at Cray Inc.|
|Clojure||Dialect of the Lisp programming language|
|COBOL||Common Business-Oriented Language|
|Coq||Dependently typed language similar to Agda, Idris, F*, Lean, and others|
|Crystal||General-purpose, concurrent, multi-paradigm, object-oriented language|
|CSS||CSS (Cascading Style Sheets) specifies a web page’s appearance|
|D||General-purpose systems programming language with a C-like syntax|
|Dart||Client-optimized programming language for fast apps|
|Dylan||Multi-paradigm language, supports functional & object-oriented programming|
|ECMAScript||Best known as the language embedded in web browsers|
|Elixir||Relatively new functional language that runs on the Erlang virtual machine|
|Emacs Lisp||A dialect of the Lisp programming language.|
|Erlang||General-purpose, concurrent, declarative, functional language|
|F#||General purpose, strongly typed, multi-paradigm language. Part of ML|
|Factor||Dynamic stack-based language|
|Forth||Imperative stack-based programming language|
|Fortran||The first high-level language, using the first compiler|
|GDScript||Godot’s built-in language for scripting and interacting with nodes|
|Go||Compiled, statically typed programming language|
|Groovy||Powerful, optionally typed and dynamic language|
|Hack||For the HipHop Virtual Machine (HHVM), created as a dialect of PHP|
|Haml||HTML Abstraction Markup Language|
|Haskell||Standardized, general-purpose, polymorphically, statically typed language|
|HTML||HyperText Markup Language|
|Icon||High-level, general-purpose language|
|J||Array programming language based primarily on APL|
|Java||General-purpose, concurrent, class-based, object-oriented, high-level language|
|Julia||High-level, high-performance language for technical computing|
|Kotlin||Statically typed, general-purpose programming language with type inference|
|LabVIEW||Designed to enable domain experts to build power systems quickly|
|LaTeX||Professional document preparation system and document markup language|
|Less||Backwards-compatible language extension for Cascading Style Sheets|
|Limbo||Designed for applications running distributed systems on small computers|
|Lisp||Unique features - excellent to study programming constructs|
|Logo||Dialect of Lisp that features interactivity, modularity, extensibility|
|Lua||Designed as an embeddable scripting language|
|Markdown||Plain text formatting syntax designed to be easy-to-read and easy-to-write|
|MoonScript||Dynamic scripting programmer friendly language that compiles into Lua|
|Nim||Statically typed compiled systems language with syntax resembling Python|
|Objective-C||General purpose language which is a superset of C|
|OCaml||General-purpose, powerful, high-level language|
|Octave||High-level language, primarily intended for numerical computations|
|OpenCL||Open Computing Language|
|Pascal||Imperative and procedural language designed in the late 1960s|
|Perl||High-level, general-purpose, interpreted, scripting, dynamic language|
|Pike||Interpreted, general-purpose, high-level, cross-platform, dynamic language|
|PHP||PHP has been at the helm of the web for many years|
|Pony||Pony is an actor-model, capabilities-secure, high-performance language|
|PostScript||Page description language in electronic and desktop publishing|
|Prolog||General purpose, declarative, logic programming language|
|PureScript||Small strongly, statically typed language with expressive types|
|Python||General-purpose, structured, powerful language|
|QML||Hierarchical declarative language for user interface layout with a syntax to JSON|
|R||De facto standard among statisticians and data analysts|
|Racket||Platform for programming language design and implementation|
|Raku||Member of the Perl family of programming languages|
|Roff||Extensible text formatting language and a set of programs for printing|
|Ruby||General purpose, scripting, structured, flexible, fully object-oriented language|
|Rust||Ideal for systems, embedded, and other performance critical code|
|Scala||Modern, object-functional, multi-paradigm, Java-based language|
|Scheme||General-purpose, functional, language descended from Lisp and Algol|
|Scratch||Visual programming language designed for 8-16 year-old children|
|Solidity||Object-oriented, high-level language for implementing smart contracts|
|SQL||Access and manipulate data held in a relational database management system|
|Standard ML||One of the two main dialects of the ML language|
|Swift||Powerful and intuitive general-purpose programming language|
|Tcl||Dynamic language based on concepts of Lisp, C, and Unix shells|
|V||Statically typed compiled language to build maintainable software|
|Vala||Object-oriented language with a self-hosting compiler that generates C code|
|VHDL||Very High Speed Integrated Circuit Hardware Description Language|
|VimL||Powerful scripting language of the Vim editor|
|XML||Set of rules for defining semantic tags that describe the structure and meaning|
|Zig||General-purpose programming language and toolchain|