Introduction:

In programming, one of the common tasks is to reverse a string. Reversing a string means that we rearrange the characters in a string in the opposite order. For example, if the input is “hello”, the reversed string will be “olleh”. In Python, this task can be achieved easily using simple operations. The primary goal of this task is to demonstrate how to reverse a string using Python programming language.

Objective:

The objective of this task is to write a Python program that accepts a string as input and outputs the reversed version of that string. This will help demonstrate Python’s string manipulation capabilities and its built-in features.

Python Code to Reverse a String:

# Python program to reverse a given string

def reverse_string(input_string):
    # Reversing the string using slicing
    return input_string[::-1]

# Taking input from the user
input_string = input("Enter a string to reverse: ")

# Calling the function to reverse the string
reversed_string = reverse_string(input_string)

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

Explanation of the Program:

The Python program is divided into the following parts:

• Function Definition: The program defines a function reverse_string(input_string), which takes a string as an argument and returns the reversed version of the string. The slicing technique input_string[::-1] is used here, where input_string[::-1] creates a new string that starts from the last character and moves backwards to the first character.
• Input: The program then prompts the user to enter a string using input(). The user input is stored in the variable input_string.
• Calling the Function: After receiving the input string, the program calls the reverse_string() function, passing the user input as an argument to reverse the string.
• Output: Finally, the program prints the reversed string using print().

How to Run the Program:

1. Make sure you have Python installed on your system. You can download it from the official website: Python Downloads.
2. Save the provided Python code in a file, for example reverse_string.py.
3. Open a terminal or command prompt on your computer.
4. Navigate to the directory where the file is saved. For example, if your file is saved in C:\PythonPrograms, type the following command to change the directory:

   cd C:\PythonPrograms

5. Run the Python program by typing:

   python reverse_string.py

6. The program will prompt you to enter a string. Type the string you want to reverse and press Enter. The program will display the reversed string.

Example Output:

Input:

Enter a string to reverse: hello

Output:

Reversed String:  olleh

Conclusion:

In this task, we have successfully written a Python program that takes a string as input and outputs the reversed string. The program uses Python’s slicing feature to reverse the string, which is an efficient and concise way to achieve this task.