Early Preview
This is currently very much a preview. Please feel free to try things out,
but don't be upset if anything is not yet working. Feedback is welcome over on our
GitHub Dicussions page.
class System.Collections.Generic.Queue<T>
Assembly: System.Collections
Inheritance: object → Queue
Implemented Interfaces
- IReadOnlyCollection`1 (Inherits: IEnumerable<T>IEnumerable)
- ICollection (Inherits: IEnumerable)
Represents a first-in, first-out collection of objects.
Properties
public
int
Count
Gets the number of elements contained in the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
int
Capacity
Gets the total numbers of elements the internal data structure can hold without resizing.
Methods
public
void
Clear()
Removes all objects from the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
bool
Contains(T item)
Determines whether an element is in the <see cref="T:System.Collections.Generic.Queue`1" /> .
Returns <see langword="true" /> if <paramref name="item" /> is found in the <see cref="T:System.Collections.Generic.Queue`1" /> ; otherwise, <see langword="false" /> .
item
The object to locate in the <see cref="T:System.Collections.Generic.Queue`1" /> . The value can be <see langword="null" /> for reference types.
public
void
CopyTo(T[] array,
int arrayIndex)
Copies the <see cref="T:System.Collections.Generic.Queue`1" /> elements to an existing one-dimensional <see cref="T:System.Array" /> , starting at the specified array index.
array
The one-dimensional <see cref="T:System.Array" /> that is the destination of the elements copied from <see cref="T:System.Collections.Generic.Queue`1" /> . The <see cref="T:System.Array" /> must have zero-based indexing.
arrayIndex
The zero-based index in <paramref name="array" /> at which copying begins.
public
T
Dequeue()
Removes and returns the object at the beginning of the <see cref="T:System.Collections.Generic.Queue`1" /> .
Returns The object that is removed from the beginning of the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
void
Enqueue(T item)
Adds an object to the end of the <see cref="T:System.Collections.Generic.Queue`1" /> .
item
The object to add to the <see cref="T:System.Collections.Generic.Queue`1" /> . The value can be <see langword="null" /> for reference types.
public
Enumerator<T>
GetEnumerator()
Returns an enumerator that iterates through the <see cref="T:System.Collections.Generic.Queue`1" /> .
Returns An <see cref="T:System.Collections.Generic.Queue`1.Enumerator" /> for the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
T
Peek()
Returns the object at the beginning of the <see cref="T:System.Collections.Generic.Queue`1" /> without removing it.
Returns The object at the beginning of the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
T[]
ToArray()
Copies the <see cref="T:System.Collections.Generic.Queue`1" /> elements to a new array.
Returns A new array containing elements copied from the <see cref="T:System.Collections.Generic.Queue`1" /> .
public
void
TrimExcess()
Sets the capacity to the actual number of elements in the <see cref="T:System.Collections.Generic.Queue`1" /> , if that number is less than 90 percent of current capacity.
public
void
TrimExcess(int capacity)
Sets the capacity of a <see cref="T:System.Collections.Generic.Queue`1" /> object to the specified number of entries.
capacity
The new capacity.
public
int
EnsureCapacity(int capacity)
Ensures that the capacity of this queue is at least the specified <paramref name="capacity" /> . If the current capacity is less than <paramref name="capacity" /> , it is increased to at least the specified <paramref name="capacity" /> .
Returns The new capacity of this queue.
capacity
The minimum capacity to ensure.
public
bool
Equals(object obj)
Inherited from object
protected
void
Finalize()
Inherited from object
public
int
GetHashCode()
Inherited from object
protected
object
MemberwiseClone()
Inherited from object
public
string
ToString()
Inherited from object