// Sample Dictionary
using System;
using System.Collections.Generic;
 
namespace DictionaryExample
{
  class Program
  {
    static void Main(string[] args)
    {
      // Create a dictionary in which both keys and values are strings.
      Dictionary<string, string> dict = new Dictionary<string, string>();
 
      // Add some items to the dictionary: each has a key and a value.
      dict.Add ("Porterhouse Steak", "14 oz. steak marinated in our house marinade and seasoned to perfection");
      dict.Add ("Roasted Duck", "Half duck roasted in a savory bourbon sauce and draped in fresh cherries");
      dict.Add ("Cobb Salad", "Rabbit food covered with eggs and meat");
      dict.Add ("French Onion Soup", "Giant crouton with brown stuff, cheese, and onions");
      dict.Add ("Grilled Cheese", "An american classic, white american cheese grilled between two slices of toast");
      dict.Add ("Lasagna", "How did this make it on the menu?");
      dict.Add ("Taco Supreme", "Yo quiero Taco Bell!");
 
 
      // See if the dictionary contains a particular key.
      Console.WriteLine ("Use the ContainsKey method to see if a movies exists in your dictionary:");
      Console.WriteLine ("Contains key Porterhouse Steak       " + dict.ContainsKey ("Porterhouse Steak"));
      Console.WriteLine ("Contains key Roasted Duck     " + dict.ContainsKey ("Roasted Duck"));
      Console.WriteLine ("Contains key Jelly Beans " + dict.ContainsKey ("Jelly Beans"));
 
     // Iterate the dictionary's contents with foreach.
      // Note that you're iterating pairs of keys and values,
      // using the KeyValuePair<T,U> type.
      Console.WriteLine ("\nContents of the dictionary:");
      foreach (KeyValuePair<string, string> pair in dict)
      {
            // Because the key is a string, you can use string methods
            Console.WriteLine ("Key: " + pair.Key.PadRight(8) + "  Value: " + pair.Value);
      }
 
      // List the keys, remember they are in no particular order.
      Console.WriteLine ("\nJust the keys:");
 
      // Dictionary<TKey, TValue>.KeyCollection is a collection of just the keys,
     // in this case strings. So here's how to retrieve the keys:
      Dictionary<string, string>.KeyCollection keys = dict.Keys;
      foreach(string key in keys)
      {
            Console.WriteLine ("Key: " + key);
      }
 
      // List the values, which are in same order as key collection above.
      Console.WriteLine ("\nJust the values:");
      Dictionary<string, string>.ValueCollection values = dict.Values;
      foreach (string value in values)
      {
            Console.WriteLine ("Value: " + value);
      }
 
      Console.Write ("\nNumber of items in the dictionary: " + dict.Count);
 
    }
  }
}

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