Hashtable.Remove Method

public virtual void Remove (
	Object key
)

public void Remove (
	Object key
)

public function Remove (
	key : Object
)

Not applicable.

using System;
using System.Collections;
public class SamplesHashtable  {

   public static void Main()  {

      // Creates and initializes a new Hashtable.
      Hashtable myHT = new Hashtable();
      myHT.Add( "1a", "The" );
      myHT.Add( "1b", "quick" );
      myHT.Add( "1c", "brown" );
      myHT.Add( "2a", "fox" );
      myHT.Add( "2b", "jumped" );
      myHT.Add( "2c", "over" );
      myHT.Add( "3a", "the" );
      myHT.Add( "3b", "lazy" );
      myHT.Add( "3c", "dog" );

      // Displays the Hashtable.
      Console.WriteLine( "The Hashtable initially contains the following:" );
      PrintKeysAndValues( myHT );

      // Removes the element with the key "3b".
      myHT.Remove( "3b" );

      // Displays the current state of the Hashtable.
      Console.WriteLine( "After removing \"lazy\":" );
      PrintKeysAndValues( myHT );
   }


   public static void PrintKeysAndValues( Hashtable myHT )  {
      foreach ( DictionaryEntry de in myHT )
         Console.WriteLine( "    {0}:    {1}", de.Key, de.Value );
      Console.WriteLine();
   }

}


/*
This code produces the following output.

The Hashtable initially contains the following:
    2c:    over
    3a:    the
    2b:    jumped
    3b:    lazy
    1b:    quick
    3c:    dog
    2a:    fox
    1c:    brown
    1a:    The

After removing "lazy":
    2c:    over
    3a:    the
    2b:    jumped
    1b:    quick
    3c:    dog
    2a:    fox
    1c:    brown
    1a:    The

*/

import System.*;
import System.Collections.*;

public class SamplesHashtable
{
    public static void main(String[] args)
    {
        // Creates and initializes a new Hashtable.
        Hashtable myHT = new Hashtable();

        myHT.Add("1a", "The");
        myHT.Add("1b", "quick");
        myHT.Add("1c", "brown");
        myHT.Add("2a", "fox");
        myHT.Add("2b", "jumped");
        myHT.Add("2c", "over");
        myHT.Add("3a", "the");
        myHT.Add("3b", "lazy");
        myHT.Add("3c", "dog");

        // Displays the Hashtable.
        Console.WriteLine("The Hashtable initially contains the following:");
        PrintKeysAndValues(myHT);

        // Removes the element with the key "3b".
        myHT.Remove("3b");

        // Displays the current state of the Hashtable.
        Console.WriteLine("After removing \"lazy\":");
        PrintKeysAndValues(myHT);
    } //main

    public static void PrintKeysAndValues(Hashtable myHT)
    {
        IEnumerator myEnumerator = myHT.GetEnumerator();
		while (myEnumerator.MoveNext()) {
			DictionaryEntry de = (DictionaryEntry)myEnumerator.get_Current();
            Console.WriteLine("    {0}:    {1}", de.get_Key(), de.get_Value());
        }
        Console.WriteLine();
    } //PrintKeysAndValues
} //SamplesHashtable 

/*
 This code produces the following output.
 
 The Hashtable initially contains the following:
     2c:    over
     3a:    the
     2b:    jumped
     3b:    lazy
     1b:    quick
     3c:    dog
     2a:    fox
     1c:    brown
     1a:    The

 After removing "lazy":
     2c:    over
     3a:    the
     2b:    jumped
     1b:    quick
     3c:    dog
     2a:    fox
     1c:    brown
     1a:    The
 */

import System
import System.Collections
import Microsoft.VisualBasic

// Creates and initializes a new Hashtable.
var myHT : Hashtable = new Hashtable()
myHT.Add("1a", "The")
myHT.Add("1b", "quick")
myHT.Add("1c", "brown")
myHT.Add("2a", "fox")
myHT.Add("2b", "jumped")
myHT.Add("2c", "over")
myHT.Add("3a", "the")
myHT.Add("3b", "lazy")
myHT.Add("3c", "dog")

// Displays the Hashtable.
Console.WriteLine("The Hashtable initially contains the following:")
PrintKeysAndValues(myHT)

// Removes the element with the key "3b".
myHT.Remove("3b")

// Displays the current state of the Hashtable.
Console.WriteLine("After removing \"lazy\":")
PrintKeysAndValues(myHT)

function PrintKeysAndValues(myList : Hashtable){
    var myEnumerator : IDictionaryEnumerator = myList.GetEnumerator()
    Console.WriteLine("\t-KEY-\t-VALUE-")
    while(myEnumerator.MoveNext())
        Console.WriteLine("\t{0}:\t{1}", myEnumerator.Key, myEnumerator.Value)
    Console.WriteLine()
}

// This code produces the following output.
// 
// The Hashtable initially contains the following:
//     -KEY-    -VALUE-
//     3a:      the
//     3c:      dog
//     3b:      lazy
//     1c:      brown
//     1b:      quick
//     1a:      The
//     2a:      fox
//     2b:      jumped
//     2c:      over
// 
// After removing "lazy":
//     -KEY-    -VALUE-
//     3a:      the
//     3c:      dog
//     1c:      brown
//     1b:      quick
//     1a:      The
//     2a:      fox
//     2b:      jumped
//     2c:      over