CopyOnWriteArrayList.ToArray Method
Definition
Important
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Overloads
| ToArray() |
Returns an array containing all of the elements in this list in proper sequence (from first to last element). |
| ToArray(Object[]) |
Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array. |
ToArray()
Returns an array containing all of the elements in this list in proper sequence (from first to last element).
[Android.Runtime.Register("toArray", "()[Ljava/lang/Object;", "GetToArrayHandler")]
public virtual Java.Lang.Object[] ToArray ();[<Android.Runtime.Register("toArray", "()[Ljava/lang/Object;", "GetToArrayHandler")>]
override this.ToArray : unit -> Java.Lang.Object[]Returns
an array containing all the elements in this list
Implements
- Attributes
Remarks
Returns an array containing all of the elements in this list in proper sequence (from first to last element).
The returned array will be "safe" in that no references to it are maintained by this list. (In other words, this method must allocate a new array). The caller is thus free to modify the returned array.
This method acts as bridge between array-based and collection-based APIs.
Java documentation for java.util.concurrent.CopyOnWriteArrayList.toArray().
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
ToArray(Object[])
Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.
[Android.Runtime.Register("toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;", "GetToArray_arrayLjava_lang_Object_Handler")]
[Java.Interop.JavaTypeParameters(new System.String[] { "T" })]
public virtual Java.Lang.Object[] ToArray (Java.Lang.Object[] a);[<Android.Runtime.Register("toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;", "GetToArray_arrayLjava_lang_Object_Handler")>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "T" })>]
override this.ToArray : Java.Lang.Object[] -> Java.Lang.Object[]Parameters
- a
- Object[]
the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose.
Returns
an array containing all the elements in this list
Implements
- Attributes
Remarks
Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array. If the list fits in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this list.
If this list fits in the specified array with room to spare (i.e., the array has more elements than this list), the element in the array immediately following the end of the list is set to null. (This is useful in determining the length of this list only if the caller knows that this list does not contain any null elements.)
Like the #toArray() method, this method acts as bridge between array-based and collection-based APIs. Further, this method allows precise control over the runtime type of the output array, and may, under certain circumstances, be used to save allocation costs.
Suppose x is a list known to contain only strings. The following code can be used to dump the list into a newly allocated array of String:
{@code String[] y = x.toArray(new String[0]);}
Note that toArray(new Object[0]) is identical in function to toArray().
Java documentation for java.util.concurrent.CopyOnWriteArrayList.toArray(T[]).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.