Week 2: Programming Basics

Question 1

What is a string (text)?

Answer 1

strings are used for representing textual data. A string is a sequence of characters enclosed in either single quotes (‘’) or double quotes (“”)

Question 2

What are variables?

Answer 2

Values. Placeholder for information.

Question 3

What will come out of Python:
print(“hello world”)

Answer 3

Hello World

Question 4

What calculation will come out of Python: original_num = 23
new_number = original_num + 1

Answer 4

24

Question 5

How to use Concatenate?

Answer 5

Add ‘whole_’ in front of the string

Question 6

punc is what?

Answer 6

Punctuation marks like commas or exclamation points

Question 7

How to use punctuation in Python?

Answer 7

punc = “!”

Question 8

What is the rule about having #s in variables?

Answer 8

Cannot begin with the #

Question 9

How could you get Python to show:
4

Answer 9

print(2+2)

Question 10

What are they called, the words that cannot be assigned to variables?

Answer 10

keywords or reserved words

Question 11

What is a % and what is its function?

Answer 11

modulo operator and its function is division–but only the remainder.

Question 12

What would become of this: num + 10 % 3

Answer 12

a value of 1

Question 13

How do you increase an operator and what is its shorthand?

Answer 13

age = age + 1
age += 1

Question 14

When there are multiple math symbols, how do you tell Python to focus on a section first?

Answer 14

parentheses. Example: num = 2 + 2 (3 * 4)
or
num = ((2 * 4) * 4) + 2

Question 17

3 Different Programming structures?

Answer 17

1. Sequence 2. Selection 3. Repetition

Question 18

Define the Sequence Programming structure.

Answer 18

Decision or Branching. 1. Single 2. Dual Type 3. Multi-alternative type

Question 19

Define the Repetition programming structure.

Answer 19

Code that executes multiple times. 1. While or until 2. For Loops

Question 20

What are the Data Type ‘Families’?

Answer 20

Letters, Dates, Numbers (integers & floats), and Boolean (true/false)

Question 21

Where do computers store their data?

Answer 21

Random Access Memory

Question 22

What languages do computer speak?

Answer 22

Binary (with bytes like 1000101010)

Question 23

What is the argv method?

Answer 23

The argv method in the sys library is used to handle command-line arguments in Python. It stores the list od arguments passed to a Python script.

Question 24

3 Error types.

Answer 24

1. Syntax
2. Run Time
3. Logic

Question 25

What is th “…str…” called in the sentence structure: print(name + “ “ + favcolor + “ “ + str(favint))

Answer 25

The str is a string conversion function call

Question 26

What does ASCII stand for and what is it used to do?

Answer 26

American Standard Code for Information Interchange. How text is used, uniform way to assign #s to letters.

Question 27

What does OOP stand for?

Answer 27

Object Oriented Programming

Question 28

What are Python libraries and name 4.

Answer 28

Additional code to import.
1. random
2. time
3. math
4. sys

Question 29

What happens when you mix ‘ and “ ?

Answer 29

Error because Python requires you stay consistent.

Question 30

Define: Newline character

Answer 30

Newline character is what is inserted when you press enter or return on the keyboard.
Example: print(“hi, end=”)

Question 31

For Macs, how do you bring up Terminal?

Answer 31

Applications>Utilities>Terminal

Question 32

How to create a new folder on Macs using the Terminal (in the OS)?

Answer 32

1. cd Desktop
2. mkdir NAMEOFFILE

Question 33

When would you use floats over integers?

Answer 33

Prices, as they have decimals often times.

Question 34

Define: psuedocode

Answer 34

Contains no rules

Question 35

What are the 3 basic structures?

Answer 35

1. Sequence
2. Selection or Decisions
3. Loops or repetitions