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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

Summary

Sequence, selection, and iteration are the three pillars that programming rests upon, and, in this chapter, we have covered the latter two.

Selection is when we test values in variables using a condition that can be either true or false. If our test turns out to be true, we can let the program execute a block of code. If it turns out to be false, we can have another block that only runs if in the case. This is done with the help of if statements.

Sometimes, we have multiple options to choose from, and we need to pick one. We could then use a switch statement. Using it instead of an if statement can make your code less verbose and easier to read.

The common task of repetition can be done in at least four ways, with the most common being the for loop. This loop will let us iterate a fixed number of times.

When we don't know how many times we want to iterate, we can use either a while loop or a do while loop. They will both iterate as long as a condition is true...

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