CircularArray

public final class CircularArray
extends Object

java.lang.Object
   ↳ androidx.collection.CircularArray<E>


CircularArray is a generic circular array data structure that provides O(1) random read, O(1) prepend and O(1) append. The CircularArray automatically grows its capacity when number of added items is over its capacity.

Summary

Public constructors

CircularArray()

Creates a circular array with default capacity.

CircularArray(int minCapacity)

Creates a circular array with capacity for at least minCapacity elements.

Public methods

void addFirst(E e)

Add an element in front of the CircularArray.

void addLast(E e)

Add an element at end of the CircularArray.

void clear()

Remove all elements from the CircularArray.

E get(int n)

Get nth (0 <= n <= size()-1) element of the CircularArray.

E getFirst()

Get first element of the CircularArray.

E getLast()

Get last element of the CircularArray.

boolean isEmpty()

Return true if size() is 0.

E popFirst()

Remove first element from front of the CircularArray and return it.

E popLast()

Remove last element from end of the CircularArray and return it.

void removeFromEnd(int numOfElements)

Remove multiple elements from end of the CircularArray, ignore when numOfElements is less than or equals to 0.

void removeFromStart(int numOfElements)

Remove multiple elements from front of the CircularArray, ignore when numOfElements is less than or equals to 0.

int size()

Get number of elements in the CircularArray.

Inherited methods