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Java is a general-purpose, concurrent, class-based, object-oriented, high-level programming language and computing platform first released by Sun Microsystems in 1995. Here’s our recommendations to learn this language without spending a penny!
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CoffeeScript is a very succinct programming language that transcompiles into JavaScript, so there is no interpretation at runtime. The syntax is inspired by Ruby, Python and Haskell, and implements many features from these three languages.
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Awk is a versatile programming language designed for pattern scanning and processing language and often used as a data extraction and reporting tool. It’s an excellent filter and report writer. Learn about Awk with these free books.
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Lua is a lightweight, small, compact, and fast programming language designed as an embeddable scripting language. This article recommends free books to help you master programming in Lua. As the range of good free books is fairly limited, I close the article with a few carefully selected tutorials that are genuinely useful.
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Scratch is a visual programming language developed by the Lifelong Kindergarten Group at the MIT Media Lab. I recommend 7 free books that really help young people to master Scratch. These recommended texts are also open source goodness.
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If you had to describe Rust in just three words, they would be fast, safe, and productive. There’s memory safety without garbage collection, concurrency without data races, abstraction without overhead, and stability without stagnation.
I recommend 8 books to get you up to speed with the Rust programming language. There’s introductory texts, books that dig deeper into the language, as well as other texts that will help you migrate from C++ and Ruby to Rust.
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Clojure is a dynamic functional general purpose programming language that runs on the Java platform. There’s lots of good reasons to learn Clojure. It offers a modern take on Lisp. There’s an excellent parser library, and a fully featured logic engine. In Clojure, immutability is the default. Once an object or data structure is created, it cannot be changed.
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I recommend 15 free books which will teach you the basics of Ruby. Many of the books are open source. All of them can be read without requiring payment.
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