Scala can be used in many domains like web applications, big data, machine learning, and more. It runs on the JVM so you need Java installed. To set up Scala, download it from the official site, add it to your PATH, and then you can run scala commands. Scala supports both mutable variables defined with var and immutable variables defined with val. It also supports basic data types and operators for mathematical and logical manipulations.

2. Where we can use Scala?

3. Where we can use Scala?

4. Why we need Scala?

5. Job Market

6. Who’s using Scala ?

7. What are the Good platforms to
learn Scala?
Scala Documentation
Tutorials Point
GeekForGeeks
IntelliPaat
Javatpoint
allaboutscala

8. What is Scala ?

9. Working Flow of Scala

10. Features of the language

11. Scala Environment Setup
• Scala runs on the JVM. So for Scala Environment Setup, you’ll need to
have Java installed on your machine.
• Now, we’ll need to Install Scala.
• Official site: https://www.scala-lang.org/download/
• Once you hit download, you’ll see the following:

12. Step1:

13. Step2:

14. Step 3:

15. Step 4:

16. Step 5:

17. Step 6:

18. Step 7:
• We’re done; click ‘Finish’.
• Now, when you get in the command prompt, type scala:
• C:Userslifei>scala
• Welcome to Scala 2.12.5 (Java HotSpot(TM) 64-Bit Server VM, Java
1.8.0_151).
• Type in expressions for evaluation.

19. Variables in Scala

20. Mutable Variable
• Mutable variables are defined by using the var keyword.
• It allows you to change value after declaration of variable.
Eg:
var data = 100 var data:Int = 100
data = 101

21. Immutable Variable
• These variables do not allow you to change a value after the declaration of a
variable.
• Immutable variables are defined by using the val keyword.
• Eg:
var data = 100 Output: Error: reassignment to val
data = 101

22. Data Types in Scala

23. Operators in Scala
• A symbol that instructs the compiler to
perform certain mathematical or logical
manipulations, is an operator.