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This article shows you the specific method of configuring Scala in the Linux system, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Scala is a language similar to java. It must be wrong to say that knowing java equals knowing Scala. Although Scala is similar to Java, there are differences.

Introduction to Scala: Scala is a multi-paradigm programming language, a programming language similar to java, designed to implement a scalable language and integrate the features of object-oriented programming and functional programming. Scala is pronounced as (/ "sk", "ske" /).

The Scala programming language is loved by many developers. If you skim through Scala's website, you will find that Scala is a pure object-oriented programming language that seamlessly combines imperative programming with functional programming.

Scala has several key features that demonstrate its object-oriented nature. For example, every value in Scala is an object, including basic data types (that is, Boolean values, numbers, and so on), and even functions are objects. In addition, classes can be subclassed, and Scala provides mixin-based composition (mixin-based composition).

Scala has a broader sense of class reuse than languages that only support single inheritance. Scala allows you to reuse "a new member definition in a class (that is, the difference from its parent class) when defining a new class." Scala calls it a combination of mixin classes.

Scala also contains several key concepts of functional languages, including higher-order functions (Higher-Order Function), local application (Currying), nested functions (Nested Function), sequence interpretation (Sequence Comprehensions), and so on.

Linux system installation Scala detailed steps: 1. Download the official website: https://www.scala-lang.org/download/

two。 Decompress and decompress the path at will:

Tar-zxvf scala-2.12.8.tgz-C / home/hadoop/ 1 configuration environment variable: vim ~ / .bashrc

# Scala export PATH=$PATH:/home/hadoop/scala-2.12.8/bin 12source ~ / .bashrc

3. Test to make sure you have installed JDK.

Scala script

The script form can be compiled and run directly: scala HelloWorld. Since the editor cannot run directly, add the parameters in the yellow box (note one point).

The above is the specific method of configuring Scala in Linux system. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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