final exam

Question 1

What naming convention do you use for variables and functions?

Answer 1

snake_case

Question 2

What naming convention do you use for classes?

Answer 2

CamelCase / PascalCase

Question 3

What naming convention do you use for constants?

Answer 3

UPPERCASE with underscores

Question 4

What’s the maximum line length

Answer 4

79 characters

Question 5

How many spaces do you use for indentation

Answer 5

4 spaces

Question 6

How many lines do you use between functions

Answer 6

2 blank lines

Question 7

What are ints?

Answer 7

Whole numbers

Question 8

What are floats?

Answer 8

Decimal numbers

Question 9

What are strings?

Answer 9

Text

Question 10

What are bools?

Answer 10

true/false values

Question 11

What are lists?

Answer 11

A group of data types, mutable (changeable) and ordered in brackets []

Question 12

What are classes?

Answer 12

Templates for objects

Question 13

What are objects?

Answer 13

Instances of classes

Question 14

What is inheritance in classes?

Answer 14

When classes inherit properties from other classes

Question 15

What are conditionals?

Answer 15

If, else, elif statements

Question 16

What’s the difference between a for and while loop?

Answer 16

A for loop runs a certain number of times; A while loop runs while a condition is true

Question 17

What are the powers of two?

Answer 17

1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024

Question 18

How do you go from binary to number?

Answer 18

Add up the power of 2s for each position with a one (start with 1 and go from the right).

Question 19

How do you go from number to binary?

Answer 19

Write out powers of 2 (start with the largest one that’s smaller than the number), placing a 1 or 0 based on if the number is bigger/thesame or smaller. Subtract it if it’s bigger/the same.

Question 20

What is the role of the CPU

Answer 20

Processing

Question 21

What is the role of RAM

Answer 21

Temporary storage

Question 22

What is the role of ROM

Answer 22

Permanent storage

Question 23

What is the role of GPU

Answer 23

Graphics processing

Question 24

How do you initialize pygame?

Answer 24

import pygame
pygame.init()

Question 25

What is Red, Green, Blue, White, and Black is RGB?

Answer 25

R: (255, 0, 0) G: (0, 255, 0) BE: (0, 0, 255) W: (255, 255, 255) BK: (0, 0, 0)

Question 26

How do you make a pygame window/screen?

Answer 26

pygame.display.set_mode()

Question 27

How do you draw in pygame?

Answer 27

pygame.draw.rect, line, circle, ellipse, polygon, arc

Question 28

How do you update the display in pygame?

Answer 28

pygame.display.update()

Question 29

How do you access the time for FPS in pygame?

Answer 29

pygame.time.Clock()

Question 30

What is the format for functions?

Answer 30

def function_name(parameters) # function body return value

Question 31

How do you access things in a list?

Answer 31

list[index]

Question 32

How do you get the first element in a list?

Answer 32

list[0]

Question 33

How do you make an empty list?

Answer 33

list_name = [] or list_name = list()

Question 34

How do you get the length of a list or string?

Answer 34

len(list), len(string)

Question 35

How do you make a string all lowercase or uppercase?

Answer 35

string.lower(), string.upper()

Question 36

How do you handle Exception Errors?

Answer 36

try: #code that might raise an exception except: #handle exception

Question 37

What happens when you multiply a string by a number?

Answer 37

It repeats it. Ex) "text" * 2 = "texttext"

Question 38

What happens when you add a string by another string?

Answer 38

It combines it Ex) "text" + "text 2" = "texttext 2"