Coding: First Steps

A practical introductory class to programming for one of the CAD design teams at the Nigeria Space Research and Development Agency

Transcript

1. Jekayinoluwa Olabemiwo, NASRDA Coding: First Steps
2. Jekayinoluwa Olabemiwo NASRDA Intern | Software Developer | DSC Lead @GoogleDevs KWASU Aerospace Undergrad
3. Coding is sweet. I’m a coder And I’m telling you 3
4. Coding | hacking | Programming | Development Coding = Hacking 4
5. 5 The blue/black screen Text editors, IDEs terminals 5
6. 5 The blue/black screen Text editors, IDEs terminals Movies' excitement 6
7. 5 The blue/black screen Text editors, IDEs terminals Movies' excitement Not a bad thing you understand Don’t be scared or think it's mysterious 7
8. 5 The blue/black screen Text editors, IDEs terminals Movies' excitement Not a bad thing you understand Don’t be scared or think it's mysterious Just like English Language, you can only read if you understand. 8
10. 10 Firstly, remove the bias
11. 11 Firstly, remove the bias Code is fun
12. 12 • Truth about coding, like any other venture • It’s hard, won't get at first, • You won't LIKELY make a million $$ first month Truth
13. Takes months and years of practice and creativity to get there 13 Truth
14. 14 But while you're here, have the best, and do the best Truth
15. 15 Programming : telling the computer what to do. Introduction
16. 16 Programming : telling the computer what to do. Say it and you have it! Code it and you have it! Introduction
17. 1 When you wanna tell your son to do anything, you have to talk to him in a language C, C++, Python, JavaScript, Java, PHP, Visual Basic, Fortran, Ruby, MATLAB, Arduino Introduction
18. 18 What if your colleague in office doesn't understand English. You need an interpreter right? Introduction
19. 19 What if your colleague in office doesn't understand English. You need an interpreter right? The computer doesn't understand the C, C++,Python, etc. They are called High level languages. Introduction
20. 20 What if your colleague in office doesn't understand English. You need an interpreter right? The computer doesn't understand the C, C++,Python, etc. They are called High level languages. We need interpreter/compilers to interpret/compile te codes we write into Low Level Language aka Machine language Introduction
21. 21 What if your colleague in office doesn't understand English. You need an interpreter right? The computer doesn't understand the C, C++,Python, etc. They are called High level languages. We need interpreter/compilers to interpret/compile te codes we write into Low Level Language aka Machine language Machine Language is just 0s and 1s. Introduction
22. 22 Your 1st steps helloworld
23. • elements head, body, p, h1-h5, • inline styling 23 First Steps...
24. 24 == comparison operator Checking if LHS is the same as RHS = assignment operator Storing RHS value into the variable on LHS comparison operators /= assignment operator
25. 25 Logical Operators
26. 26 Arithmetic Operator
27. 29 Control Flow: if-else
28. 27 Control Flow: if-else
29. 28 Control Flow: if-else (without syntax rules)
30. 30 Control Flow: if-else
31. Write a program to cook Indomie Can you? Yes, you can. • Take in your inputs into variables, the water, the seasoning, the number of indomie packs, etc • Write the recipe procedurally • Make sure to comment your codes 31 Let’s try something
32. 32 Control Flow: while
33. 33 Control Flow: for
34. for-loop tends to give a lot of people tough time though 34 Control Flow: for
35. Look out for keyword when thinking about naming your variables. Keywords are reserved words in a language. E.g., for, while, def (function in Python), const (variable in Javascript), do, in, true, false, if, else, elif 35 Keywords
36. Naming stuff gives the experienced programmers tough time too. Hard guys, hard guys right? 36 Naming is hard
37. # relax, sit back, inhale, exhale, # you're coding already. # Congratulations! # Buy yourself chilled kunu! Finally
38. Thank you! Any Questions? Twitter: @JKaylight
39. Additional Resources 1. FreeCodeCamp for Software Engineering: https://www.freecodecamp.org/ 2. Harvard’s CS50 Introduction to Computer Science: https://www.edx.org/course/cs50s-introduction-to-computer-science 3. https://www.freecodecamp.org/news/how-i-landed-a-full-stack-developer-jo b-without-a-tech-degree-or-work-experience-6add97be2051/ 4. Chemical Engineer learnt software development in 9months: https://www.freecodecamp.org/news/how-i-went-from-newbie-to-software-e ngineer-in-9-months-while-working-full-time-460bd8485847/