INF 1511 VISUAL PROGRAMMING CH 1

Question 1

Create a variable monthly_savings, equal to 10 and num_months, equal to 4.
Multiply monthly_savings by num_months and save it to new_savings.
Add new_savings to savings, saving the sum as total_savings.
Print the value of total_savings.

Answer 1

Create the variables monthly_savings and num_months
monthly_savings=10
num_months=4

Multiply monthly_savings and num_months
new_savings = monthly_savings * num_months

Add new_savings to your savings
total_savings = savings + new_savings

Print total_savings
print(total_savings)

Multiply monthly_savings and num_months
new_savings = monthly_savings * num_months

Add new_savings to your savings
total_savings = savings + new_savings

Print total_savings
print(total_savings)
140

Question 2

Create a new float, half, with the value 0.5.
Create a new string, intro, with the value “Hello! How are you?”.
Create a new boolean, is_good, with the value True.

Answer 2

Create a variable half
half=0.5

Create a variable intro
intro=”Hello! How are you?”

Create a variable is_good
is_good=True

Create a variable half
half=0.5

Create a variable intro
intro=”Hello! How are you?”

Create a variable is_good
is_good=True

Question 3

define python programming langauage

Answer 3

it is a powerful high level, interpreted, interactive, dynamic object oriented programming language

Question 4

what is a high level programming language vs low level

Answer 4

is designed to simplify computer programming and make it more accessible to humans. closer to human languages and further from machine languages
-low level is closer to binary code

Question 5

interpreted vs compiled and transcompile and what is it used for

Answer 5

this is how a computer executes code

-INTERPRETED Languages: These languages (e.g., Python, Ruby, JavaScript) are executed directly by an interpreter without prior compilation. the source code is not directly translated by the target machine. Instead, a different program, aka the interpreter, reads and executes the code. therefore, it supports a complete debugging and diagnostic environment making the job of fixing mistakes much faster. Also, the software development is quite rapid and flexible in it.

-Compiled Languages: Code is transformed into machine code (executable) before execution. Examples include C, C++, and Java.
compiled language, the target machine directly translates the program.

-Transcompile Languages: These languages convert source code from one language to another (source-to-source translation).

Question 6

what is interactive or dynamic

Answer 6

-An interactive programming language is a type of language that allows developers to interact directly with the program as they write it

Question 7

REPL

Answer 7

Read ,evaulaute print loop
Allows you to run Python code interactively while working on a project or learning the language. This tool is available in every Python installation, so you can use it at any moment.

Question 8

What are the features of python

Answer 8

-Python is easy to learn
-It has easier to read syntax.
-It uses white space
-Python is free. open-source model.
-Python can be integrated with other languages
-Python is an interpreted language
-Python is a good choice for web development, networking, games, data processing, and business applications
-For efficient memory management, Python uses garbage collection,
-Python supports exception handling

Question 9

What is script or scripting

Answer 9

python can do RAPID APPLICATION DEVELOPMENT.
A SCRIPT usually consists of a few lines of codes, and it solves a very specific problem. automate small tasks extract info from a set of data manipulation of files and directories scrape data from a website

Question 10

Mutable Data Types

Answer 10

Data types in python where the value assigned to a variable can be changed
eg.list ,set, dictionary,bytearray

Question 11

Immutable Data Types:

Answer 11

Data types in python where the value assigned to a variable cannot be changed
eg .numeric(integers,floats complex) ,string, tuple,range

Question 12

what code to use to see data type of a variable IE BOOLEAN ,INTEGER ,STRING

Answer 12

Type ( ) insert the object into the bracket

Question 13

LITERALS in Python

Answer 13

• is defined as the raw data assigned to variables or constants while programming.
  -We mainly have five types of literals which includes string literals, numeric literals, boolean literals, literal collections and a special literal None.

A literal is a number or string that appears directly in a program. The following are all literals in Python:

10 # Integer literal

10.50 # Floating-point literal

10.50j # Imaginary literal

eg.Variable eg X=10 (the entire thing is a variable)

Literal is 10

Identifier is set by ‘programmer user’ which means the same as ‘python keyword’ eg the ‘X”

Question 14

explain what is a identifier

Answer 14

-A Python identifier is a name used to identify a variable, function, class, module or other object.
-An identifier starts with a letter A to Z or a to z or an underscore (_) followed by zero or more letters, underscores and digits (0 to 9). ——-Python does not allow punctuation characters such as @, $, and % within identifiers
-Cannot start with a number
-it is the same as the keword used by python but called a variable which the programmer assigns

Question 15

what is a variable

Answer 15

Variables are used for storing data in a program.

To set a variable, you choose a name for your variable, and then use the equals sign followed by the data that it stores.

Variables can be letters, numbers, or words. For example,

1 = 10

length = 10

length_rectangle = 10.0

k=”Hello World!”

Question 16

how many keywords are there

Answer 16

35
all in lowercase except for true and false

Question 17

list the keywords first 10 a-d

Answer 17

and as assert async await break class continue def del

Question 18

list the keywords second 11 e-i

Answer 18

elif ,else except finally for from global if import in is

Question 19

list the keywords last 11 L- Y

Answer 19

lambda nonlocal not or pass raise return try while with yield

Question 20

final 3 in capitals keywords

Answer 20

False

None

True

Question 21

what are comments and how to does it work in python

Answer 21

-Comments are the lines that are for documentation purposes and are ignored by the interpreter.

-The comments inform the reader what the program is all about.

-A comment begins by a hash sign (#).
-All characters after the # and up to the physical line end are part of the comment.

Question 22

A ………………. is a line that you see in a program.

Answer 22

Physical line

Question 23

A ………………… is a single statement in Python terms.

Answer 23

logical line

Question 24

When a ………………… is too long to fit on a single line, you can join two adjacent ………………into a ……………… by ensuring that the first………………. has no …………. and ends with a ………………………..

Answer 24

statement
physical lines
logical line
physical line
comment or #
backslash ()

Question 25

Python also joins adjacent lines into one logical line if an open ……………or ……………., or …………………is not closed.

Answer 25

parenthesis ( ( )
bracket ( [ )
brace ( { )

Question 26

type the code for the output.
my_list = [
‘apple’,
‘banana’,
‘cherry’,
‘date’
]

Answer 26

print(my_list)
[‘apple’, ‘banana’, ‘cherry’, ‘date’]

Question 27

type the code for the output.?
my_list = [
…: ‘apple’
…: ‘banana’
…: ‘cherry’
…: ‘date’
…: ]

Answer 27

print(my_list)
[‘applebananacherrydate’]

you cannot use strings across multiple line without ““closing commas on each string

Question 28

type the code for the output.?
long_string = ‘This is a very long string that ‘ \
‘spans multiple lines using a backslash.’

Answer 28

print (long_string)

This is very long string that spans multiple lines using a backlash.

Normal spaces

Question 29

type the code for the output.?
total_sum = (5 + 10 + 11 +
20 + 2)

Answer 29

print (total_sum)

                   48

Question 30

type the code for the output.?
print(“Initial\nCommit”)

Answer 30

Initial
Commit

prints on 2 physical lines

Question 31

type the code for the output.?
g = “"”geeks
for
geeks”””

Answer 31

print(g)
geeks
for
geeks

Question 32

type the code for the output.?
print(1,2,3,
…: 4,4,5,6,)

Answer 32

1 2 3 4 4 5 6

Question 33

type the code for the output.?
print(123
…: 45466)

Answer 33

Cell In[32], line 1

print(123 

      ^ 

SyntaxError: invalid syntax. Perhaps you forgot a comma?

Question 34

type the code for the output.?
print(1234,56565)

Answer 34

1234 56565
comma makes a space

Question 35

type the code for the output.?
print(1234,
…: 56455)

Answer 35

1234 56455

Question 36

type the code for the output.?
print(1234+
…: 4466)

Answer 36

5700

Question 37

type the code for the output.?
print(1234 + 1)

Answer 37

1235

Question 38

type the code for the output.?
print (1,
…: 2,
…: 3,
…: 4,
…: 5,
…: 6,
…: )

Answer 38

1 2 3 4 5 6

Question 39

Which function is used to show messages and results of computations?

Answer 39

print ( )

Question 40

print([“message”][variable list])

where …………… is the text string enclosed either in single or double quotes.

The ………… may be one or more variables containing the result of computation.

Answer 40

message
variable list

e.g print (“Hello World!”)

print (10)

Question 41

what is the code used to suppress newline character

Answer 41

,end’’

make sure the quotes are properly defined.

Question 42

type the code for the output.?

print(“Hello World!”, end=’’)
print(‘It might rain today’)

Answer 42

Hello World!It might rain today

Question 43

type the code for the output.?
print(‘Hello World!’, ‘It might rain today’)

Answer 43

Hello World! It might rain today

Question 44

type the code for the output.?
-Assuming the values of variables l and b are 8 and 5
-print (“Length is “, l, “ and Breadth is “, b)

Answer 44

l=8 b=5

print (“Length is “, l, “ and Breadth is “, b)

Length is 8 and Breadth is 5