scala interactive tutorial

+ ")" ) }} The Talkpoint class above inherits from point, noting that its default constructor, X, Y does not have a Val decoration before, and extends point (x, y) will automatically call the base class's constructor. We can call this subclass's Talk method by using the following codeObject app { def Main (args : Array[string]) { val P = new talkpoint (0,0 p. () }} Run the program output: My position is (0,0)Methods for overriding base classesNext we create a subclass of Talkpoin

To create a string: The most straightforward way to create a string is to write a method that: var greeting = "Hello world!"; Or var greeting:string = "Hello world!"; Whenever you encounter a string in code, the compiler creates a string object and its value in this example using: "Hello world!", but if you like, you can give the string, because here I have alternately shown in the declaration. Object Test { Val greeting:string = "Hello, world!" def main (args:array[string]) { printl

Scala Tutorial (12) List Operation Advanced Advance combat 1 List Basic Operation 1.1 List Composition Structure The array is composed of the head tail two parts: head represents the first element, and tail represents the other elements. Val bigdata = List ("Hadoop", "Spark") val data = List (1,2,3) //array consists of head tail two parts: head represents the first element, tail represents

Previous Article: Scala Tutorial: interaction with Java, everything is an object This document is translated from the official Scala tutorial. to prevent misunderstanding, keep the original document for reference. Due to space limitations, there are three articles. Blog formats are not easy to adjust, interested friend

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dreamweaver| Tutorial Create more complex interactive effectsIn Dreamweaver, the more complex effect is achieved through a function called behaviors, which is behaviors literally "behavior", which we call the response of an event. Through the changes in the page elements, such as the mouse movement, click and so on "event" (events), triggering pop-up windows, close the page, such as "response" (Actions), is

AngularJS interactive learning tutorial recommendation0. Directory Directory preview details 1 Learn Angular 2 AngularJS getting started course sentiment statement1. Preview If you are in a hurry and do not have time to listen to my nonsense, you can directly read the two AngularJS interactive learning tutorials recommended today.LearnAngularJS of CodeCademy Fenb

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Interactive prototype design software axure Chinese Course--Introduction Introduction (Introduce) An important task for product managers in the Internet industry is to conduct product prototyping (Prototype design). And the most basic work of product prototype design is to combine annotation, a large number of instructions and flowchart drawing frame Diagram Wireframe, the complete and accurate presentation of their product prototypes to UI, UE, pro

In this tutorial we create a variety of dialog boxes in the Linux interactive shell script, the dialog box can be friendly to the operator in Linux, interested friends can refer to learning about.When you install new software in the terminal environment, you can often see the Information dialog box pop-up and need your input. The types of dialog boxes are Lockbox, checklist, menu, and so on. They can guide

Alibaba Cloud Iot framework ServerSuperIO tutorial-20. Network Communication Controller grouping to improve interactive load balancing capabilities. V3.6.6 released, Iot Controller20.1 Overview ServerSuperIO originally had only one network controller in network communication mode. in self-control mode, concurrency mode, and Singleton mode, the returned data is processed asynchronously without any performanc

://love2d.org/Embedded Development Web application script extension and database plug-in security system installation http://www.runoob.com/lua/lua-environment.html Learning Resources http://lua-users.org/files/wiki_insecure/users/ Thomasl/luarefv51.pdf Quick Reference Manual http://www.runoob.com/lua/lua-tutorial.html Beginner Tutorial https://wizardforcel.gitbooks.io/ W3school-lua/content/w3school Tutorial