Question

Write a program that takes a string as input and prints that string in the reverse order. You should use a for loop to iterate through the string. Remember that a string can be treated as a list of characters, so you can access the individual characters in the string by using their index.

Hints: The iᵗʰ character of a string variable str can be accessed as str [ i] where index i starts from 0 . The function: len("helloworld") returns the number of characters in "helloworld".

Answer 1

A Python program is provided that takes a user's input string and prints it in reverse order using a for loop to iterate through the string in reverse.

Step-by-step explanation:

The student is asking for a program that takes a string as an input and prints it in reverse order using a for loop. Here is a simple Python program that accomplishes this:

# Prompt the user to enter a string
input_string = input("Please enter a string: ")

# Initialize an empty string to hold the reversed string
reversed_string = ''

# Use a for loop to iterate through the string in reverse
for i in range(len(input_string) - 1, -1, -1):
reversed_string += input_string[i]

# Print the reversed string
print("Reversed string:", reversed_string)

This program prompts the user to input a string, then creates an empty string called 'reversed_string'. It then iterates over the input string in reverse, starting from the last character and appending each character to 'reversed_string'. Finally, it prints out the reversed string.

To write a program that prints a given string in reverse order, you can iterate through the string using a for loop and access the characters of the string by their index. Here's an example Python program:

string = input("Enter a string: ")

reverse_string = ""

for i in range(len(string)-1, -1, -1):

reverse_string += string[i]

print(reverse_string)

In this program, the variable 'string' stores the user input, and the variable 'reverse_string' will store the reversed string. The for loop iterates from the last index of the string (-1) to the first index (0) and appends each character to the 'reverse_string'. Finally, the reversed string is printed.