Python function to retrieve middle character

Last update on April 01 2025 13:20:10 (UTC/GMT +8 hours)

2. Middle Character or None

Write a Python function that returns the middle character of a string or "None" if the string length is odd.

Sample Solution:

Code:

def get_middle_character(input_string):
    length = len(input_string)
    
    if length % 2 == 0:
        return "None"
    else:
        middle_index = length // 2
        return input_string[middle_index]

def main():
    try:
        input_string = input("Input a string: ")
        result = get_middle_character(input_string)
        
        if result == "None":
            print("String length is even, no middle character.")
        else:
            print("Middle character:", result)
    except Exception as e:
        print("An error occurred:", e)

if __name__ == "__main__":
    main()

Output:

Input a string: abcd
String length is even, no middle character.

Input a string: abcde
Middle character: c

In the above exercise, the program defines the "get_middle_character()" function, which calculates the length of the input string and checks if it's odd. If it's odd, it returns the middle character of the string; otherwise, it returns "None". In the "main()" function, user input is processed using "get_middle_character()", and the result is printed.

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python function that returns the middle character of an even-length string, or None if the string length is odd.
• Write a Python program that extracts the middle character from a string only if the string length is even, and otherwise returns None.
• Write a Python function that handles edge cases by returning None for strings with odd lengths and prints a custom message for even-length strings.
• Write a Python script to take a list of strings and apply a function that returns the middle character if the string’s length is even, otherwise returns None.

Python Code Editor :

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