Regex to find an integer within a string

Pattern intsOnly = Pattern.compile("\d*");
Matcher makeMatch = intsOnly.matcher("dadsad14 dssaf jfdkasl;fj");
makeMatch.find();
String inputInt = makeMatch.group();
System.out.println(inputInt);

"\d+"

unescaped: ([+-]?d+)([eE][+-]?d+)?
  escaped: ([\+-]?\d+)([eE][\+-]?\d+)?

unescaped: ([+-]?d(.d*)?|.d+)([eE][+-]?(d(.d*)?|.d+))?
  escaped: ([\+-]?\d(\.\d*)?|\.d+)([eE][\+-]?(\d(\.\d*)?|\.\d+))?

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

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