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

## Task

In this challenge, you were provided a range of numbers. Using the range of numbers, you had to create and populate an array. The final array could only consist of even multiples of **3**. 

## Solution

Let's go over the solution step-by-step.

The first thing you had to do was create an array, let's call it `array1`, using the `range` method to which you had to pass `minRange` and `maxRange`.

```
val array1 = Array.range(minRange, maxRange)
```

Next, you had to create a new array, let's call it `array2`, by multiplying the elements of `array1` with **3**. This could be done using the `map` method. 

```
val array2 = array1.map(_ * 3)
```
Finally, the last step required you to create yet another array, `finalArray`, by filtering out the even numbers from `array2`. This could be done using the `filter` method.

```
val finalArray = array2.filter(_ % 2 == 0)
```


You can find the complete solution below:

>You were required to write the code from **line 3** till **line 5**.

# Task

In this challenge, you were provided a range of numbers. Using the range of numbers, you had to create and populate an array. The final array could only consist of even multiples of **3**. 

# Solution

Let's go over the solution step-by-step.

The first thing you had to do was create an array, let's call it `array1`, using the `range` method to which you had to pass `minRange` and `maxRange`.

```
val array1 = Array.range(minRange, maxRange)
```

Next, you had to create a new array, let's call it `array2`, by multiplying the elements of `array1` with **3**. This could be done using the `map` method. 

```
val array2 = array1.map(_ * 3)
```
Finally, the last step required you to create yet another array, `finalArray`, by filtering out the even numbers from `array2`. This could be done using the `filter` method.

```
val finalArray = array2.filter(_ % 2 == 0)
```


You can find the complete solution below:

>You were required to write the code from **line 3** till **line 5**.

In the following lesson, we will go over the solution of the challenge: Array of Integers

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

Solution Review: Array of Integers

Task

Solution