Question

Why is it useful to store information with different data types? When do you choose to use a list over a dictionary? Provide a code example that supports your comments:I need help explaining this question although this has been answered it is a little confusing for someone new to code,thanks in advance.

Answer 1

Data types specify the type of data or the category of data which use.For example some datatypes are:-

• 'int'- used to store integer values
• 'string'-used to store strings
• 'char'-used to store chars like 'a','b'..
• 'float' used to store decimal numbers

There are a more data types. But using different data types helps user to use different types of data

List :- is a data structure which can store items.these items can be of different. an example to use this is when you need to make a list of friends.

Dictionary: is a data structure which store two values one of which is key and other is value. so if you want to store something like a means/ equals to b then you can use a dictionary.

Python code

# Making 2 dictionaries
#means dictionar key:word value is meaning
# numFactors dictionary key:number value:number of factors
mean={"accidial":"Dialing someone's Number accidentally","awesome":"extremely good"}
numFactors={1:1,2:2,3:2,4:3,5:2}
#using dictionary
print('accidial means',mean['accidial'])
print('number of factors of 5 is',numFactors[5])

#using lists
list=['ankit','john','Tarun']
print(list)
#accessing a element in a list can be done by index .i.e position of the item
#the numbering of the position starts from 0..
print(list[0])