Python Practice Questions Tutorial

Convert Lowercase Vowels to Uppercase in a String

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A Python program to convert only lowercase vowels in a string to uppercase while keeping other characters unchanged.

Explanation of the Code:

def check_character(string): → Defines a function to process the input string.
vowels = "aeiou" → Stores lowercase vowels for comparison.
result = "" → Initializes an empty string to store the modified result.
for char in string: → Iterates through each character in the input string.
if char in vowels: → Checks if the character is a lowercase vowel.
result += char.upper() → Converts the vowel to uppercase and adds it to result.
else: → If the character is not a vowel, it remains unchanged.
result += char → Adds the unchanged character to result.
return result → Returns the modified string.
char = input("Enter a character: ") → Takes user input.
converted_string = check_character(char) → Calls the function and stores the modified string.
print("Modified string:", converted_string) → Prints the modified string with uppercase vowels.

Example Output:

Input: hello world
Output: hEllO wOrld

Program:

def check_character(string):
    vowels = "aeiou"
    result = ""
    for char in string:
        if char in vowels:
            result += char.upper()
        else:
            result += char
    return result

char = input("Enter a character: ")
converted_string = check_character(char)
print("Modified string:", converted_string)

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Convert Lowercase Vowels to Uppercase in a String

Explanation of the Code:

Example Output:

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