public class SimpleStringComparer : IComparer
{
int IComparer.Compare(object x, object y)
{
int cmpstr = (int)x;
return cmpstr.CompareTo((int)y);
}
}
public class MyArrayList : ArrayList
{
public static void Main()
{
// Creates a new ArrayList.
MyArrayList numbers = new MyArrayList();
numbers.Add(10);
numbers.Add(21);
numbers.Add(54);
numbers.Add(3);
numbers.Add(2);
numbers.Add(10);
numbers.Add(5);
//display the array
Console.WriteLine("The number of elements in the arraylist are:");
foreach (int i in numbers)
{
Console.WriteLine(i);
}
// BinarySearch requires a sorted ArrayList.so perform sorting in arraylist by using sort() method
numbers.Sort();
//display the sorted element
Console.WriteLine("After sorting the arraylist are:");
foreach (int i in numbers)
{
Console.WriteLine(i);
}
//perform searching
int index = numbers.BinarySearch(1,6,21, new SimpleStringComparer());
Console.WriteLine("Binary search, item found at index:{0}", index);
}
}
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