using System;
using System.Text.RegularExpressions;
public class SingleCharacterRegularExpression {
public static void Main(string[] args) {
string patternString = "b.d";
string[] testStrings = { "bud", "bid", "bed", "b d", "bat", "bd", "bead" };
Regex regex = new Regex(patternString);
foreach (string testString in testStrings) {
Match match = regex.Match(testString);
if (match.Success) {
Console.WriteLine(1);
} else {
Console.WriteLine(0);
}
}
}
}
/*
run:
1
1
1
1
0
0
0
*/