Shulou(Shulou.com)06/01 Report--

This article mainly explains "how to use Scala pattern matching". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use Scala pattern matching.

Variables can also be used in pattern matching case statements. When colorNum=4, a value of 4 is passed to the number variable.

Object MathApp {def main (args: Array [String]): Unit = {val colorNum = 4 val colorStr = colorNum match {case 1 = > "red" case 2 = > "yellow" case 3 = > "green" case number = > number+ "is Unknown"} println (colorStr)}}

# # case Class

When defining a class, if you add the case keyword before the class keyword, the class is the case class

Execution result

Thank you for your reading, the above is the content of "how to use Scala pattern matching", after the study of this article, I believe you have a deeper understanding of how to use Scala pattern matching, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.