Regex to find an integer within a string

Question

I\'d like to use regex with Java.

What I want to do is find the first integer in a string.

Example:

String = \"the 14 dogs ate 12 bones\"
         


        

Answer 1

Heres a handy one I made for C# with generics. It will match based on your regular expression and return the types you need:

public T[] GetMatches(string Input, string MatchPattern) where T : IConvertible
    {
        List MatchedValues = new List();
        Regex MatchInt = new Regex(MatchPattern);

        MatchCollection Matches = MatchInt.Matches(Input);
        foreach (Match m in Matches)
            MatchedValues.Add((T)Convert.ChangeType(m.Value, typeof(T)));

        return MatchedValues.ToArray();
    }

then if you wanted to grab only the numbers and return them in an string[] array:

string Test = "22$data44abc";
string[] Matches = this.GetMatches(Test, "\\d+");

Hopefully this is useful to someone...