Logic Building/Phase 5 - Category 1: Basic String Handling/Program

Count Vowels

Count number of vowels in string.

Logic BuildingBeginner

Logic Building

# Take string input
s = input("Enter a string: ")

# Count vowels
vowels = "aeiouAEIOU"
count = 0
for char in s:
    if char in vowels:
        count += 1

print(f"Number of vowels: {count}")

Output

Enter a string: Hello
Number of vowels: 2

Check each character if it's a vowel.

Key Concepts:

Define vowel string
Check if character in vowels
Count matches

Convert to Lowercase

Count Consonants