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

# Introduction

As this chapter deals with collections, it is important to know how to print the elements in a collection.

We cannot simply use `println` or `print` as they are used to print single values and collections are a collection of values. For this reason, Scala provides the `foreach` method. This method can be used by every instance of every class in the collection library.

# Syntax

The `foreach` method is called on a collection of any type and takes a single argument. The argument must be a function/method that will be applied to each individual element of the collection.



In this lesson, you will be given a quick introduction to the foreach method.

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

foreach: A Collection Method

Introduction