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

Product type Paperback

Published in Jul 2020

Publisher Packt

ISBN-13 9781839216862

Length 430 pages

Edition 1st Edition

Concepts

Programming Language

Author (1):

Joakim Wassberg

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Table of Contents (19) Chapters

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

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Appendix A: How to Translate the Pseudocode into Real Code

1. Appendix B: Dictionary

Controlling the execution path

In Chapter 5, Sequence – The Basic Building Block of a Computer Program, we learned that the code within a program is executed in sequence.

A sequence is one of the three basic logical structures we have in programming. So, in this chapter, we will cover the other two, selection and iteration.

Selection statements

There are situations when we only want to execute some code if a condition is met. For example, if you recall our application from Chapter 5, Sequence - The Basic Building Block of a Computer Program which turned on the outdoor light, we had a condition that said if our phone detected that we were within a given range from our house, it should send a signal to the home computer. To refresh your memory, let's take a look at some images you have seen before. Figure 7.1 was used to illustrate the action of us entering the range: