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This article mainly explains "what are the data types of Scala". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the data types of Scala".

# # basic data types

Byte/Char

Short/Inr/Long/Double/Float

Boolean

Scala > val a: Int = 1a: Int = 1scala > val b: Boolean = trueb: Boolean = true

Floating point type

Scala > val c: Float = 1.234fc: Float = 1.234

Type conversion

Scala > val d = 1.asInstanceOf [double] d: Double = 1.0

Determine the data type

Scala > val f = 2.isInstanceOf [int] f: Boolean = truescala > val g = 2.1234.isInstanceOf [double] g: Boolean = truescala > val e = 2.1234f.isInstanceOf [float] e: Boolean = true

Lazy

If a variable or constant is declared as lazy, it will be evaluated and assigned only the first time it is used.

Scala > lazy val h = 1h: Int = scala > hres0: Int = 1

# # string

String concatenation cannot be omitted from s, and the $symbol is required for string interpolation.

Val h = "Hadoop" val s = s "hello $h" println (s) Thank you for your reading, these are the contents of "what are the data types of Scala?" after the study of this article, I believe you have a deeper understanding of what the data types of Scala have, 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!

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