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

How many string interpolation methods does Scala provide?

How many string interpolation methods does Scala provide?

Strings that require further processing during run time

Strings that require further processing during compilation time

What are processed string literals?

What would the output be of the given code:

```
println(s"3 + 2 = ${3 + 2}")
```

What would the output be of the given code:
<pre><code>println(s&quot;3 + 2 = ${3 + 2}&quot;)
</code></pre>

Which Java method does the `f` string interpolator represent?

Which Java method does the <code>f</code> string interpolator represent?

What would the output be of the given code:

```
val insertSeparator = 12345678
println(f"$insertSeparator%,d")
```

What would the output be of the given code:
<pre><code>val insertSeparator = 12345678
println(f&quot;$insertSeparator%,d&quot;)
</code></pre>

`raw` recognizes escape sequences while `s` doesn't

`raw`  doesn't recognize escape sequences while `s` does

`raw`  recognizes character literals while `s` doesn't

`raw`  doesn't recognize character literals while `s` does

What is the difference between the `raw` string interpolator and the `s` string interpolator?

What is the difference between the <code>raw</code> string interpolator and the <code>s</code> string interpolator?

The `split()` method can only split at a comma `,`.

The <code>split()</code> method can only split at a comma <code>,</code>.

What encompasses multiline strings?

What would the output be of the given code:

```
val regularExp = "[a-z]{4}".r

val replaceIn = "She is four years old "

val replaced = regularExp.replaceFirstIn(replaceIn,"five")

println(replaced)
```

What would the output be of the given code:
<pre><code>val regularExp = &quot;[a-z]{4}&quot;.r

val replaceIn = &quot;She is four years old &quot;

val replaced = regularExp.replaceFirstIn(replaceIn,&quot;five&quot;)

println(replaced)
</code></pre>

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In the next chapter, we will look into Scala's collection library.

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