How to Assume the days of the week are numbered 0,1,2,3,4,5,6 from Sunday to Saturday. Write a function which is given the day number, and it returns the day name (a string).

Question

Plzzz help by tomorrow.

Answer 1

It might be useful to know that the question is exploring the concept of associative array or associative memory. Python has a special built-in data structure for this named Dictionary. A Python Dictionary stores a collection of associated data: keys and values. In this example, the keys are the integers, while the values are the names of the days (strings). According to the Python documentation ( https://docs.python.org/3/tutorial/datastructures.html ) the main operations on a Python Dictionary are storing some value with an associated key, and retrieving a value given its associated key. While this example doesn't really require it, in some applications it would be beneficial to use this built-in capability rather than write all the code for inserting, enforcing unique keys, sorting, removing entries etc from scratch. Cheers.

Answer 2

weekDay = {

0: "Sunday",

1: "Monday",

2: "Tuesday",

3: "Wednesday",

4: "Thursday",

5: "Friday",

6: "saturday"

}

def is_valid(input_string):

try:

val = int(input_string)

if val < 0 or val > 6:

return False

return True

except ValueError:

return False

day = input("Enter day number (0-6): ")

isValid = is_valid(day)

while not isValid:

day = input("Invalid input. Enter day number (0-6): ")

isValid = is_valid(day)

n = int(day)

print(weekDay[n])