What I'm trying to do is fairly simple. The user inputs a string. The program checks and counts the number of vowels present in that text string.
char[] vowels = {'a', 'e', 'i', 'o', 'u'};
int counter = 0;
string s = txtInput.Text.Trim();
char[] arr = s.ToCharArray();
foreach (char i in arr)
{
//checks the 2 arrays for matches
counter++;
}
How can I check the 2 arrays to see if there are any matches?
Thank you.
arr.Any(p => vowels.Contains(p));
Update: To calculate number of matches you may use;
int count = arr.Where(p => vowels.Contains(p)).Count();
You can use Array.IndexOf() for this:
if (Array.IndexOf(vowels, i) >= 0)
{
// the character is present
}
Simply use two foreach loops
foreach(var i in arr)
{
foreach(var j in vowels)
{
if(i==j)
{
counter++;
}
}
}
I would use LINQ:
arr.Select(c => vowels.Contains(c));
In order to get the count of characters you can use Count method instead of Select.
If you want to just know if there are any vowels, then use Any - it will terminate as soon as it founds the first match.
Try this:
if (vowels.Contains(i))
{
counter++;
}
You can use LINQ for that!
bool anyMatches = arr.Intersect(vowels).Any();
or, if you want the matches:
var matches = arr.Intersect(vowels).ToList();
EDIT:
or to count the exact number of matches:
int count = arr.Count(x => vowels.Contains(x));
Use this Linq Query
var q=from c in s
where vowels.Contains(c)
group c by c into g
select new {vowel=g.Key, count=g.Count()};
then you can iterate and do what you like with the contents
e.g.
foreach (var x in q) {
Console.WriteLine(String.Format("{0} : {1}",x.vowel,x;count));
}
Hash<char> vowels = //initialize to vowels.
foreach(char c in input)
{
if(hashset(vowels) contains the character)
increment counter.
}
return counter.
