Explain the concept of Linked hash table and Write a program in C# where you implement the concept of linked hash table
LinkedHashTable is just like HashTable with an additional feature of maintaining an order of elements inserted into it. HashTable provided the advantage of quick insertion, search and deletion but it never maintained the track and order of insertion which the LinkedHashTable provides where the elements can be accessed in their insertion order. Few important features of LinkedHashTable are as follows:
A LinkedHashTable contains values based on
the key. It implements the Table interface and extends HashTable
class.
It contains only unique elements .
It may have one null key and multiple null
values .
It is same as HashTable with additional feature
that it maintains insertion order. For example, when we ran the
code with HashTable, we got different order of elements
C# program to implement linked Hash Table
using System;
using System.Collections;
class GFG {
// Main Method
static public void Main()
{
// Create a
hashtable
// Using Hashtable
class
Hashtable my_hashtable1
= new Hashtable();
// Adding key/value
pair
// in the
hashtable
// Using Add()
method
my_hashtable1.Add("A1",
"Welcome");
my_hashtable1.Add("A2",
"to");
my_hashtable1.Add("A3",
"GeeksforGeeks");
Console.WriteLine("Key
and Value pairs from my_hashtable1:");
foreach(DictionaryEntry
ele1 in my_hashtable1)
{
Console.WriteLine("{0} and {1} ", ele1.Key, ele1.Value);
}
// Create another
hashtable
// Using Hashtable
class
// and adding key/value
pairs
// without using Add
method
Hashtable my_hashtable2
= new Hashtable() {
{1, "hello"},
{2, 234},
{3, 230.45},
{4, null}};
Console.WriteLine("Key
and Value pairs from my_hashtable2:");
foreach(var ele2 in
my_hashtable2.Keys)
{
Console.WriteLine("{0}and {1}", ele2,
my_hashtable2[ele2]);
}
}
Explain the concept of Linked hash table and Write a program in C# where you implement...
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