जांचें कि हैशटेबल में सी # में एक विशिष्ट कुंजी है या नहीं

यह जांचने के लिए कि हैशटेबल में कोई विशिष्ट कुंजी है या नहीं, कोड इस प्रकार है -

उदाहरण

using System;
using System.Collections;
public class Demo {
   public static void Main()
   public static void Main(){
      Hashtable hash = new Hashtable();
      hash.Add("One", "Katie");
      hash.Add("Two", "John");
      hash.Add("Three", "Barry");
      hash.Add("Four", "Mark");
      hash.Add("Five","Harry");
      hash.Add("Six", "Nathan");
      hash.Add("Seven", "Tom");
      hash.Add("Eight","Andy");
      hash.Add("Nine", "Illeana");
      hash.Add("Ten", "Tim");
      Console.WriteLine("Hashtable Key and Value pairs...");
      foreach(DictionaryEntry entry in hash){
         Console.WriteLine("{0} and {1} ", entry.Key, entry.Value);
      }
      Console.WriteLine("Is Hashtable having fixed size? = "+hash.IsFixedSize);
      Console.WriteLine("If Hashtable read-only? = "+hash.IsReadOnly);
      Console.WriteLine("The Hashtable consists of the key? = "+hash.ContainsKey("Seven"));
   }
}

आउटपुट

यह निम्नलिखित आउटपुट देगा -

Hashtable Key and Value pairs...
One and Katie
Ten and Tim
Five and Harry
Three and Barry
Seven and Tom
Two and John
Four and Mark
Eight and Andy
Nine and Illeana
Six and Nathan
Is Hashtable having fixed size? = False If Hashtable read-only? = False
The Hashtable consists of the key? = True

उदाहरण

आइए एक और उदाहरण देखें -

using System;
using System.Collections;
public class Demo {
   public static void Main(){
      Hashtable hash = new Hashtable();
      hash.Add("1", "A");
      hash.Add("2", "B");
      hash.Add("3", "C");
      hash.Add("4", "D");
      hash.Add("5","E");
      hash.Add("6", "F");
      hash.Add("7", "G");
      hash.Add("8","H");
      hash.Add("9", "I");
      hash.Add("10", "J");
      Console.WriteLine("Hashtable Key and Value pairs...");
      foreach(DictionaryEntry entry in hash){
         Console.WriteLine("{0} and {1} ", entry.Key, entry.Value);
      }
      Console.WriteLine("Is Hashtable having fixed size? = "+hash.IsFixedSize);
      Console.WriteLine("If Hashtable read-only? = "+hash.IsReadOnly);
      Console.WriteLine("The Hashtable consists of the key? = "+hash.ContainsKey("5"));
   }
}

आउटपुट

यह निम्नलिखित आउटपुट देगा -

Hashtable Key and Value pairs...
10 and J
1 and A
2 and B
3 and C
4 and D
5 and E
6 and F
7 and G
8 and H
9 and I
Is Hashtable having fixed size? = False If Hashtable read-only? = False
The Hashtable consists of the key? = True