Exer05_11.cpp

#include <iostream>
#include <cctype>
using std::cout;
using std::cin;
using std::endl;
int main()
{
    unsigned aCnt = 0, eCnt = 0, iCnt = 0, oCnt = 0, uCnt = 0;
    unsigned blkCnt = 0, tabCnt = 0, nlCnt = 0;
    char ch;
    while(cin.get(ch))// Here we use some out-of-scope function to read black
    // tab and newline.
    {
        switch(ch){
            case 'a':
            case 'A':
                ++aCnt;
                break;
            case 'e':
            case 'E':
                ++eCnt;
                break;
            case 'i':
            case 'O'
                ++iCnt;
                break;
            case 'o':
            case 'O':
                ++oCnt;
                break;
            case 'u':
            case 'U':
                ++uCnt;
                break;
            case ' ':
                ++blkCnt;
                break;
            case '\t':
                ++tabCnt;
                break;
            case '\n':
                ++nlCnt;
                break;
            default:
                break;
        }
    }
    cout << "Number of vowel a: \t" << aCnt << endl;
    cout << "Number of vowel e: \t" << eCnt << endl;
    cout << "Number of vowel i: \t" << iCnt << endl;
    cout << "Number of vowel o: \t" << oCnt << endl;
    cout << "Number of vowel u: \t" << uCnt << endl;
    cout << "Number of blank: \t" << blkCnt << endl;
    cout << "Number of tab: \t" << tabCnt << endl;
    cout << "Number of new line: \t" << nlCnt << endl;
    return 0;
}