Question

Create a Python program that populates an array variable whose values(at least 5) are input by the user. It should then perform some modification to each element of array using a loop and then display the modified array in a second loop. Include Header comments in your program that describe what the program does.

Answer 1

1. Example with numbers:

Python Code for modifying the number to square of that number and displaying using loop is given below:

# define a empty list which is similar to an array
array = []

# Size of array is asked from user 
# As input function returns string value so int() function is used for type conversion 
array_size = int(input("Enter the size of array: "))

# User is pompt to enter the values 
for i in range(array_size):
    user_input = int(input ("Enter the number {} : ".format(i+1) ))
    array.append(user_input)

# Modification part here provided numbers are squared and stored in same array list    
print("\n***processing modification***")
for index, value in enumerate(array):
    array[index] = value ** 2

# Print the squared values of the numbers
print("\nThe square of provided numbers :")
for index, value in enumerate(array):
    print("Square of number" + str(index+1) + " : " + str(array[index]))

Output:

2. Example with strings:

Python Code for modifying the names to reverse of the name and displaying using loop is given below:

# define a empty list which is similar to an array
array = []

# Size of array is asked from user 
# As input function returns string value so int() function is used for type conversion 
array_size = int(input("Enter the size of array: "))

# User is pompt to enter the names 
for i in range(array_size):
    user_input = input ("Enter the Name {} : ".format(i+1) )
    array.append(user_input)

# Modification part here provided names ae reversed and stored in same array list    
print("\n***processing modification***")
for index, value in enumerate(array):
    # array[index][start:end:step] -->  element at each index are reversed using step -1 
    array[index] = array[index][::-1]  

# Print the reversed names from input
print("\nThe reverse of provided names :")
for index, value in enumerate(array):
    print("Reverse of the name " + str(index+1) + " : " + array[index])

Output: