Tag: vowel

C Program To Check Whether a Character is Vowel or Consonant

Lets write a C program to check whether user entered character is a vowel or a consonant.

Related Read:
if else statement in C
Logical Operators In C

Note: Lowercase English alphabets a, e, i, o, u and uppercase English alphabets A, E, I, O, U are called Vowels. All other alphabets are called Consonants.

We assume that the user enters only alphabets as input for this program.

Source Code: C Program To Check Whether a Character is Vowel or Consonant

#include < stdio.h >

int main()
{
    char ch;

    printf("Enter a character\n");
    scanf("%c", &ch);

    if( ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' ||
        ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
    {
        printf("%c is vowel\n", ch);
    }
    else
    {
        printf("%c is consonant\n", ch);
    }

    return 0;
}

Output 1:
Enter a character
A
A is vowel

Output 2:
Enter a character
B
B is consonant

Output 3:
Enter a character
e
e is vowel

Output 4:
Enter a character
f
f is consonant

Logic To Check Whether a Character is Vowel or Consonant

We ask the user to enter an alphabet and store it inside character variable ch. Using if else construct we check if the user entered alphabet is vowel or consonant. Inside if condition, we check if alphabet present in variable ch is equal to a or e or i or o or u or A or E or I or O or U. If any of these conditions are true, then it’ll return true and block inside if executes orelse else block gets executed.

In the background, c program checks the ASCII value present in variable ch with the ASCII values of a, e, i, o, u, A, E, I, O, U.

Video Tutorial: C Program To Check Whether a Character is Vowel or Consonant


[youtube https://www.youtube.com/watch?v=lJSmUKw3cMM]

YouTube Link: https://www.youtube.com/watch?v=lJSmUKw3cMM [Watch the Video In Full Screen.]

For list of all c programming interviews / viva question and answers visit: C Programming Interview / Viva Q&A List

For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert

Find Position of Left most Vowel: JavaScript

Develop and demonstrate a xhtml file which uses javascript program to find the first occurrence or the left most vowel in the user entered string.
Input: A String.
Output: Position of the left most or first occurrence of the vowel in the user entered string.

Video Explaining The JavaScript Code:


[youtube https://www.youtube.com/watch?v=ni3diSb5Y40]

YouTube Link: https://www.youtube.com/watch?v=ni3diSb5Y40 [Watch the Video In Full Screen.]


Work Flow:
Step 1: Prompt the user to enter a string, store the user entered string in a variable called str.

Step 2: Convert the string in str to upper case using toUpperCase function. Now the original value of str is lost and its equivalent upper case string has been stored.
Ex: str = str.toUpperCase();

Step 3: Now find the length of the entered string using length function. i.e., variableName.length; Ex: str.length;

Step 4: Using for loop, loop through the string from 0 to the string length(which is calculated in Step 3).

Step 5: Using chatAt function fetch one character at a time from str and store it in variable chr. Ex: chr = str.charAt(i);

Step 6: Now compare the value in chr with upper case vowels: A, E, I, O, U.

Step 7: If chr matches any vowel then break out of for loop.

Step 8: If the value of i after coming out of the for loop, is less than string length then print the value of i which is the position of the left most occurrence of the vowel. If the value of i is greater than or equal to string length, then Vowel not found in the entered string.
Javascrip coding explained in above video:

 

 
Finding Left most Vowel in the Input String

Input/Output:
If Microsoft is the input string, then the position of the first occurrence of vowel is 2. i.e., i.
For Oracle, O is a vowel, so the position is 1.
For Technotip, e is the first vowel, so the position is 2.
For any input which do not have a vowel in it, the above javascript program outputs this statement: No vowel found in the entered string.