static void Main(string[] args)
{
Dictionary<char, string> certifications = new Dictionary<char, string>();
certifications.Add('P', "Passenger transport");
certifications.Add('H', "Hazardous materials");
certifications.Add('N', "Tank vehicles (liquids in bulk)");
certifications.Add('T', "Double/Triple trailers");
ShowCertifications(certifications);
//search for certfications by key and confirm
string theValue;
//try get value
//uses the out
certifications.TryGetValue('H', out theValue);
Console.WriteLine(theValue);
if (certifications.ContainsKey('P'))
Console.WriteLine("Has certfication 'P'");
//check certification for a specific value and confirm
if (certifications.ContainsValue("Double/Triple trailers"))
Console.WriteLine("Has certification 'T'");
//remove certification 'T' by key.
certifications.Remove('T');
if (!certifications.ContainsValue("Double/Triple trailers"))
Console.WriteLine("No longer has certification 'T'");
//remove all certifications
certifications.Clear();
if (certifications.Count == 0)
Console.WriteLine("All certifications removed");
Console.ReadLine();
}
