Create Hashtable with initial capacity and IEqualityComparer in CSharp
Description
The following code shows how to create Hashtable with initial capacity and IEqualityComparer.
Example
using System;/*from www . j av a2s. c o m*/
using System.Collections;
using System.Globalization;
class myCultureComparer : IEqualityComparer
{
public CaseInsensitiveComparer myComparer;
public myCultureComparer()
{
myComparer = CaseInsensitiveComparer.DefaultInvariant;
}
public myCultureComparer(CultureInfo myCulture)
{
myComparer = new CaseInsensitiveComparer(myCulture);
}
public new bool Equals(object x, object y)
{
if (myComparer.Compare(x, y) == 0)
{
return true;
}
else
{
return false;
}
}
public int GetHashCode(object obj)
{
// Compare the hash code for the lowercase versions of the strings.
return obj.ToString().ToLower().GetHashCode();
}
}
public class SamplesHashtable
{
public static void Main()
{
Hashtable myHT2 = new Hashtable(3, new myCultureComparer());
myHT2.Add("FIRST", "Hello");
myHT2.Add("SECOND", "World");
myHT2.Add("THIRD", "!");
foreach (string firstName in myHT2.Keys)
{
Console.WriteLine("{0} {1}", firstName, myHT2[firstName]);
}
}
}
The code above generates the following result.