Thank you for taking my feedback very positively @Rochieoreo :-)

Thank you, ill use that in further development. :)

Check @superklamer solutin, There is no need for "break" on each case! It all can be nest like the switch statement above. However, read my comment, I do like that approach
switch(strArray[incriment])
{
case 'e':
case 'a':
case 'i':
case 'o':
case 'u':
vowelCount++;
break;
default:
break;
}