Learn the syntax, data types, and operations essential for programming in Scala

Become a Scala Developer

In this module, we will learn Scala from the ground up. This module aims to teach us how to write basic programs, assuming we have no prior knowledge of the language. We will start with a brief introduction to Scala to understand its functionality and applications. We will then move discuss the key features and functions of the language (data types, functions, classes, etc.) in detail. In the end, we will have all the basic knowledge of how to program in Scala.

Learn Scala from Scratch

Variables are used for storing data.

Decides if the variable is immutable or mutable

Declares the initial value of the variable

What role does the variable name play when declaring a variable?

What role does the variable name play when declaring a variable?

Which print statement(s) automatically displays output on the new line?

Which print statement(s) automatically displays output on the new line?

What will be the output of the following code:


```
val randomNumber: Int = 39
randomNumber = 72
println(randomNumber)
```

What will be the output of the following code:
<pre><code>val randomNumber: Int = 39
randomNumber = 72
println(randomNumber)
</code></pre>

In Scala, the general rule is to initialize the variables as ___.

In Scala, the general rule is to initialize the variables as ___.

Which subclass does the data type `Byte` come under?

Which subclass does the data type <code>Byte</code> come under?

What is the flow of Scala's type hierarchy from top to bottom?

What is the flow of Scala’s type hierarchy from top to bottom?

Which of the following is allowed in terms of type casting?

Which of the following is allowed in terms of type casting?

What are the three requirements for declaring a variable?

What are the three requirements for declaring a variable?

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In the next chapter, we will discuss operators in Scala.

In the following quiz, you will be tested on concepts you learned in this chapter.

Getting to Know Scala

Variables and Types

Operating with Operators

Strings and How to Use Them

Scala's Collection Library

Control Structures

Getting Started with Functions

Higher-Order Functions

Classes and Objects

Conclusion

Chapter Quiz