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

punc is what?

Answer 5

Punctuation marks like commas or exclamation points

Question 6

How to use punctuation in Python?

Answer 6

punc = “!”

Question 7

What is the rule about having #s in variables?

Answer 7

Cannot begin with the #

Question 8

How could you get Python to show:
4

Answer 8

print(2+2)

Question 9

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

Answer 9

keywords or reserved words

Question 10

What is a % and what is its function?

Answer 10

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

Question 11

What would become of this: num = 10 % 3

Answer 11

a value of 1
Which is the remainder when you divide 10 by 3.

Question 12

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

Answer 12

age = age + 1
age += 1

Question 13

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

Answer 13

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

Question 14

How do you place comments in your code?

Answer 14

#

Question 15

3 Different Programming structures?

Answer 15

1. Sequence 2. Selection 3. Repetition

Question 16

Define the Sequence Programming structure.

Answer 16

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

Question 17

What are the Data Type ‘Families’?

Answer 17

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

Question 18

Where do computers store their data?

Answer 18

Random Access Memory

Question 19

What languages do computers speak?

Answer 19

Binary (with bytes like 1000101010)

Question 20

What is the argv method?

Answer 20

The argv method in the sys library is used to handle command-line arguments in Python. It stores the list of arguments passed to a Python script. It is part of the sys module, specifically sys.argv, which is a list where:

The first element (sys.argv[0]) is the name of the script.
The subsequent elements are the arguments passed to the script.

Question 21

3 Error types.

Answer 21

1. Syntax
2. Run Time
3. Logic

Question 22

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

Answer 22

The str is a string conversion function call

Question 23

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

Answer 23

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

Question 24

What does OOP stand for?

Answer 24

Object Oriented Programming

Question 25

What are Python libraries and name 4.

Answer 25

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

Question 26

What happens when you mix ' and " ?

Answer 26

Error because Python requires you stay consistent.

Question 27

Define: Newline character

Answer 27

Newline character is what is inserted when you press enter or return on the keyboard. Example: print("hin/end=") hi end=

Question 28

For Macs, how do you bring up Terminal?

Answer 28

Applications>Utilities>Terminal

Question 29

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

Answer 29

1. cd Desktop 2. mkdir NAMEOFFILE

Question 30

When would you use floats over integers?

Answer 30

Prices, as they have decimals often times.

Question 31

Define: psuedocode

Answer 31

Contains no rules

Question 32

What are the 3 basic structures?

Answer 32

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