Question

Write a program that reads a sentence input from the user. The program should count the number of vowels(a,e,i,o,u) in a sentence. Use the following function to read the sentence. Should use switch statement with toupper.

int read_line(char str[],int n)
{
   int ch, i=0;
   while((ch =getchar()) != '\n')
       if(1<n)
           str[i++]==ch;
   str[i] != '\0';
   return i;
}

output should look like:

Enter a sentence: and thats the way it is!

Your sentence contains 6 vowels.

Answer 1

#include <stdio.h>

int countVowels(char str[]){
    int i = 0, count = 0;
    while(str[i]!='\0'){
        switch(str[i]){
            case 'a':
            case 'A':
            case 'e':
            case 'E':
            case 'i':
            case 'I':
            case 'o':
            case 'O':
            case 'u':
            case 'U':
                count++;
        }
        i++;
    }
    return count;
}

int main()
{
    char str[100];
    int vowelCount;
    
    printf("Enter a sentence: ");
    scanf("%[^\n]s",str);
    
    vowelCount = countVowels(str);
    
    printf("Your sentence contains %d vowels.\n",vowelCount);
    return 0;
}