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Computer Programming for Absolute Beginners

You're reading from   Computer Programming for Absolute Beginners Learn essential computer science concepts and coding techniques to kick-start your programming career

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Product type Paperback
Published in Jul 2020
Publisher Packt
ISBN-13 9781839216862
Length 430 pages
Edition 1st Edition
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Author (1):
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Joakim Wassberg Joakim Wassberg
Author Profile Icon Joakim Wassberg
Joakim Wassberg
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Table of Contents (19) Chapters Close

Preface 1. Section 1: Introduction to Computer Programs and Computer Programming
2. Chapter 1: Introduction to Computer Programs FREE CHAPTER 3. Chapter 2: Introduction to Programming Languages 4. Chapter 3: Types of Applications 5. Chapter 4: Software Projects and How We Organize Our Code 6. Section 2: Constructs of a Programming Language
7. Chapter 5: Sequence – The Basic Building Block of a Computer Program 8. Chapter 6: Working with Data – Variables 9. Chapter 7: Program Control Structures 10. Chapter 8: Understanding Functions 11. Chapter 9: When Things Go Wrong – Bugs and Exceptions 12. Chapter 10: Programming Paradigms 13. Chapter 11: Programming Tools and Methodologies 14. Section 3: Best Practices for Writing High-Quality Code
15. Chapter 12: Code Quality 16. Other Books You May Enjoy Appendix A: How to Translate the Pseudocode into Real Code 1. Appendix B: Dictionary

Selection with the switch statement

One alternative, when we have one option out of many that can be true, is the switch statement. It also works with conditions even if they are not as apparent as they are in an if statement.

Another difference is that a switch statement only compares values for equality. The reason for it is that it is not suitable for the age logic we used when we explored the if statement, as we wanted to see whether the age was between two values. Instead, it is perfect if we're going to match it to a value that is fixed. We will soon look at a real example. However, first, let's explore the structure of a switch statement.

What a switch statement looks like depends on what language we use. What we will see here is a structure that is rather common, but when applying it, you will need to look up the correct syntax for your language.

A switch statement begins by stating what variable we want to check. It is common for languages to use the switch...

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