示例#1
0
        static void Main(string[] args)
        {
            Hashtable ht = new Hashtable();  //IDictionary part of

            ht.Add("one", "two");
            ht.Add("two", "second");
            ht.Add("three", "third");
            ht.Add("four", "fourth");
            ht.Add("five", "fifth");

            foreach (object obj in ht)
            {
                Console.WriteLine(obj);     // this does not work point to note
            }
            Console.WriteLine("-----------------------");

            foreach (DictionaryEntry de in ht)
            {
                Console.WriteLine(de.Key + "  " + de.Value);
            }
            Console.WriteLine("-----------------------");
            Console.WriteLine(ht.Contains("five"));    //Containskey  and Contains same
            Console.WriteLine(ht.ContainsValue("five"));
            Console.WriteLine(ht.ContainsKey("five"));

            Console.WriteLine("-----------------------");
            IDictionaryEnumerator ide = ht.GetEnumerator();  // IEnumerator inherited

            while (ide.MoveNext())
            {
                Console.WriteLine(ide.Key + " " + ide.Value);
            }

            Console.WriteLine("----------get hash code-------------");
            int i = ide.GetHashCode();

            Console.WriteLine(i);

            Console.WriteLine("----------use ht object of hashcode-------------");

            Console.WriteLine("CopyTo method");
            object [] obj1 = new object[ht.Count];

            ht.CopyTo(obj1, 0);                  //imp

            foreach (DictionaryEntry cs in obj1)
            {
                Console.WriteLine(cs.Key + " " + cs.Value);
            }


            Console.WriteLine("----index value to understand indexor ---- ");
            ht["34"]    = 34;
            ht[23]      = "23";
            ht[123]     = '2';
            ht["hello"] = 46.4;
            ht["hi"]    = 145.444;

            foreach (DictionaryEntry onDe in ht)
            {
                Console.WriteLine(onDe.Value);
            }

            Console.ReadKey();
        }