HashSet<T>.UnionWith(IEnumerable<T>) Yöntem

Tanım

Geçerli nesneyi, HashSet<T> belirtilen koleksiyon veya her ikisi de bulunan tüm öğeleri içerecek şekilde değiştirir.Modifies the current HashSet<T> object to contain all elements that are present in itself, the specified collection, or both.

public:
 virtual void UnionWith(System::Collections::Generic::IEnumerable<T> ^ other);
public:
 void UnionWith(System::Collections::Generic::IEnumerable<T> ^ other);
public void UnionWith (System.Collections.Generic.IEnumerable<T> other);
abstract member UnionWith : seq<'T> -> unit
override this.UnionWith : seq<'T> -> unit
member this.UnionWith : seq<'T> -> unit
Public Sub UnionWith (other As IEnumerable(Of T))

Parametreler

other
IEnumerable<T>

Geçerli nesneyle Karşılaştırılacak koleksiyon HashSet<T> .The collection to compare to the current HashSet<T> object.

Uygulamalar

Özel durumlar

other, null değeridir.other is null.

Örnekler

Aşağıdaki örnek, iki farklı kümenin nasıl birleştirildiğini gösterir.The following example demonstrates how to merge two disparate sets. Bu örnek, iki HashSet<T> nesne oluşturur ve sırasıyla bunları eşit ve tek sayılarla doldurur.This example creates two HashSet<T> objects, and populates them with even and odd numbers, respectively. HashSet<T>Çift sayıları içeren kümeden üçüncü bir nesne oluşturulur.A third HashSet<T> object is created from the set that contains the even numbers. Örnek daha sonra, UnionWith tek sayı kümesini üçüncü kümesine ekleyen yöntemini çağırır.The example then calls the UnionWith method, which adds the odd number set to the third set.

HashSet<int> evenNumbers = new HashSet<int>();
HashSet<int> oddNumbers = new HashSet<int>();

for (int i = 0; i < 5; i++)
{
    // Populate numbers with just even numbers.
    evenNumbers.Add(i * 2);

    // Populate oddNumbers with just odd numbers.
    oddNumbers.Add((i * 2) + 1);
}

Console.Write("evenNumbers contains {0} elements: ", evenNumbers.Count);
DisplaySet(evenNumbers);

Console.Write("oddNumbers contains {0} elements: ", oddNumbers.Count);
DisplaySet(oddNumbers);

// Create a new HashSet populated with even numbers.
HashSet<int> numbers = new HashSet<int>(evenNumbers);
Console.WriteLine("numbers UnionWith oddNumbers...");
numbers.UnionWith(oddNumbers);

Console.Write("numbers contains {0} elements: ", numbers.Count);
DisplaySet(numbers);

void DisplaySet(HashSet<int> collection)
{
    Console.Write("{");
    foreach (int i in collection)
    {
        Console.Write(" {0}", i);
    }
    Console.WriteLine(" }");
}

/* This example produces output similar to the following:
* evenNumbers contains 5 elements: { 0 2 4 6 8 }
* oddNumbers contains 5 elements: { 1 3 5 7 9 }
* numbers UnionWith oddNumbers...
* numbers contains 10 elements: { 0 2 4 6 8 1 3 5 7 9 }
*/
Imports System.Collections.Generic

Class Program

    Shared Sub Main()

        Dim evenNumbers As HashSet(Of Integer) = New HashSet(Of Integer)()
        Dim oddNumbers As HashSet(Of Integer) = New HashSet(Of Integer)()

        For i As Integer = 0 To 4

            ' Populate evenNumbers with only even numbers.
            evenNumbers.Add(i * 2)

            ' Populate oddNumbers with only odd numbers.
            oddNumbers.Add((i * 2) + 1)
        Next i

        Console.Write("evenNumbers contains {0} elements: ", evenNumbers.Count)
        DisplaySet(evenNumbers)

        Console.Write("oddNumbers contains {0} elements: ", oddNumbers.Count)
        DisplaySet(oddNumbers)

        ' Create a new HashSet populated with even numbers.
        Dim numbers As HashSet(Of Integer) = New HashSet(Of Integer)(evenNumbers)
        Console.WriteLine("numbers UnionWith oddNumbers...")
        numbers.UnionWith(oddNumbers)

        Console.Write("numbers contains {0} elements: ", numbers.Count)
        DisplaySet(numbers)
    End Sub


    Private Shared Sub DisplaySet(ByVal collection As HashSet(Of Integer))
        Console.Write("{")
        For Each i As Integer In collection
            Console.Write(" {0}", i)
        Next i
        Console.WriteLine(" }")
    End Sub

End Class
' This example produces output similar to the following:
' evenNumbers contains 5 elements: { 0 2 4 6 8 }
' oddNumbers contains 5 elements: { 1 3 5 7 9 }
' numbers UnionWith oddNumbers...
' numbers contains 10 elements: { 0 2 4 6 8 1 3 5 7 9 }

Açıklamalar

Bu yöntem bir O ( n ) işlemidir; burada, n parametresindeki öğelerin sayısıdır other .This method is an O(n) operation, where n is the number of elements in the other parameter.

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