Kotlin Essential Training

Introduction

• Welcome
• What you should know

1. Kotlin Development Preparations

• Intellij IDEA installation and quick start guide

2. Data Types

• Numeric data types
• Mutable and immutable variables
• Boolean and char data types
• String tricks and traps

3. Control Flow

• How statements differ from expressions
• The if expression
• The when expression
• Loops with when expressions
• Nulls and smart casting
• Challenge: Replace an if expression with a when
• Solution: Replace an if expression with a when

4. Collections and Sequences

• When to use arrays
• When to use lists
• Sets best practices
• How to use maps as dictionaries
• Use collection operations
• Sequences used in asynchronous data
• Challenge: Remove duplicates from a list
• Solution: Remove duplicates from a list

5. Input, Output, and Files

• Command-line arguments
• Get user input
• Read and write file data
• Challenge: Create and filter a list from a text file
• Solution: Create and filter a list from a text file

6. Functions

• Functions
• Lambda functions
• Anonymous functions
• Local functions
• Challenge: Pass a function to another function
• Solution: Pass a function to another function

7. Classes, Objects, and Interfaces

• Kotlin classes
• Constructors and init block
• The beauty of data classes
• Class composition with interfaces
• Companion objects
• Challenge: Count instances of a class
• Solution: Count instances of a class

8. Debug Your Kotlin Code

• Set unconditional and conditional breakpoints
• Watch variables and change their values

9. Harness the Power of Coroutines

• The need for coroutines
• How to handle canceled and timed-out tasks
• Challenge: Read a file in the background
• Solution: Read a file in the background

Conclusion

• Next steps