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Learn Scala from Scratch

Course Overview

Learn how to program in Scala, one of the most popular programming languages in the world right now -- not just amongst developers, but even amongst massive companies like Twitter and LinkedIn. Scala provides you the tools to build scalable programs easily and effectively. It's a stat...

How You'll Learn

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Course Contents

1. Getting to Know Scala

Who Should Take this Course

Scala: A History

A 'Scalable' Language

A Featurette: Scala Features

Who's Using Scala?

2. Variables and Types

Variables in Scala

Printing in Scala

Immutable Variables

Mutable Variables

Challenge: Declaring a Variable

Solution Review: Declaring a Variable

Type Casting in Scala

Challenge: Type Casting

Solution Review: Type Casting

Strings and Other Literals

3. Operating with Operators

A Brief Introduction to Methods and Functions

An Introduction to Operators

Arithmetic Operators

Relational Operators

Logical Operators

Bitwise Operators

Assignment Operators

Challenge: Using Multiple Operators

Solution Review: Using Multiple Operators

Operator Precedence

Challenge: Temperature Conversion

Solution Review: Temperature Conversion

4. Strings and How to Use Them

An Introduction

String Interpolation with 's'

Challenge: Embed a Variable in a String

Solution Review: Embed a Variable in a String

String Interpolation with 'f'

Challenge: Formatting Strings

Solution Review: Formatting Strings

String Interpolation with 'raw'

Testing String Equality

Creating Multiline Strings

Splitting Strings

Finding Patterns in Strings

Replacing Patterns in Strings

Methods for Comparing Strings

Challenge: Searching a String

Solution Review: Searching a String

5. Scala's Collection Library

A Brief Introduction to Objects and Classes

An Introduction to the Collection Library

foreach: A Collection Method

The Array Collection

Challenge: Array of Integers

Solution Review: Array of Integers

Working with Lists

Challenge: Appending an Element to a List

Solution Review: Appending an Element to a List

Getting Started with Vectors

Creating a Range of Numbers

LazyList: A Lazy Version of List

6. Control Structures

Control Structures in Scala

Optimizing an if Program

Challenge: Pass or Fail

Solution Review: Pass or Fail

Loop with while

Challenge: Oven is Ready!

Solution Review: Oven is Ready!

Iterate with for

Challenge: Array of Squares

Solution Review: Array of Squares

Exception Handling with try

Pattern Matching with Match

Challenge: Color Wheel

Solution Review: Color Wheel

Types of Patterns

7. Getting Started with Functions

Defining a Function

Challenge: Absolute Value

Solution Review: Absolute Value

Evaluation Strategies

Quiz: CBV or CBN?

Code Termination

Recursive Functions

Challenge: Sum of Lists

Solution Review: Sum of Lists

Learning by Example: Newton's Method

Challenge: Max with Nested Functions

Solution Review: Max with Nested Functions

Challenge: Tail Recursion

Solution Review: Tail Recursion

8. Higher-Order Functions

What are Higher-Order Functions?

Learning by Example: Summation

Summation with Higher-Order Functions

Challenge: Write your First Higher-Order Function

Solution Review: Write Your First Higher-Order Function

Anonymous Functions

Summation with Anonymous Functions

Challenge: Anonymous Functions

Solution Review: Anonymous Functions

Functions Returning Functions

Summation with Currying

Expanding a Multiple Parameter List

Challenge: Using a Curried Function

Solution Review: Using a Curried Function

9. Classes and Objects

Creating a Class in Scala

Objects of a Class

Creating an Object Using Constructor Parameters

Learning by Example: checksum

Singleton Objects: Companion

Singleton Objects: Standalone

10. Conclusion

Where to Go from Here

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