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Program to check the Number is Vowel or Constant

Program to check : Number is Vowel or Constant

Definition & Explanation

The provided Python code defines a function isVowel(c) that takes a character c as input and returns True if c is a vowel (either uppercase or lowercase), and False otherwise. The function first converts the input character to uppercase using c.upper() to ensure that it matches with the uppercase vowel characters. Then, it checks if the uppercase character is equal to any of the vowels (‘A’, ‘E’, ‘I’, ‘O’, ‘U’).

Program Logic

  1. Convert the input character to uppercase to handle both lowercase and uppercase input.
  2. Check if the uppercase character is equal to any of the vowel characters (‘A’, ‘E’, ‘I’, ‘O’, ‘U’).
  3. If the character is a vowel, return True; otherwise, return False.
C

Method 1 :

#include <stdio.h>

int isVowel(char c) {
    c = toupper(c); // Convert to uppercase
    return (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
}

int main() {
    char c = 'e';

    if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))) {
        printf("Non Alphabet\n");
    } else if (isVowel(c)) {
        printf("%c is a Vowel\n", c);
    } else {
        printf("%c is a Consonant\n", c);
    }

    return 0;
}

Output :

C++

Method 1 :

#include <iostream>
using namespace std;

bool isVowel(char c) {
    c = toupper(c); // Convert to uppercase
    return (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
}

int main() {
    char c = 'e';

    if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))) {
        cout << "Non Alphabet" << endl;
    } else if (isVowel(c)) {
        cout << c << " is a Vowel" << endl;
    } else {
        cout << c << " is a Consonant" << endl;
    }

    return 0;
}

Output :

JAVA

Method 1 :

public class Main {
    public static boolean isVowel(char c) {
        c = Character.toUpperCase(c); // Convert to uppercase
        return (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U');
    }

    public static void main(String[] args) {
        char c = 'e';

        if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))) {
            System.out.println("Non Alphabet");
        } else if (isVowel(c)) {
            System.out.println(c + " is a Vowel");
        } else {
            System.out.println(c + " is a Consonant");
        }
    }
}

Output :

Python

Method 1 :

def isVowel(c):
	c=c.upper()
	return c =='A' or c=='E' or c=='I' or c=='O' or c=='U'


c='e'

if not c.isalpha():
	print('Non Alphabet')
elif isVowel(c):
	print(c,"is a Vowel")
else:
	print(c, "is a consonant")

Output :

e is a Vowel
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