ArrayList Constructor (Int32)


Initializes a new instance of the ArrayList class that is empty and has the specified initial capacity.

Namespace:   System.Collections
Assembly:  mscorlib (in mscorlib.dll)

public ArrayList(
	int capacity


Type: System.Int32

The number of elements that the new list can initially store.

Exception Condition

capacity is less than zero.

The capacity of an ArrayList is the number of elements that the ArrayList can hold. As elements are added to an ArrayList, the capacity is automatically increased as required by reallocating the internal array.

If the size of the collection can be estimated, specifying the initial capacity eliminates the need to perform a number of resizing operations while adding elements to the ArrayList.

This constructor is an O(n) operation, where n is capacity.

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
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