MutableDoubleList

Artifact: androidx.collection:collection

Added in 1.5.0

Kotlin |Java

public final class MutableDoubleList extends DoubleList

java.lang.Object
↳	androidx.collection.DoubleList
	↳	androidx.collection.MutableDoubleList

MutableDoubleList is a MutableList-like collection for Double values. It allows storing and retrieving the elements without boxing. Immutable access is available through its base class DoubleList, which has a List-like interface.

This implementation is not thread-safe: if multiple threads access this container concurrently, and one or more threads modify the structure of the list (insertion or removal for instance), the calling code must provide the appropriate synchronization. It is also not safe to mutate during reentrancy -- in the middle of a forEach, for example. However, concurrent reads are safe.

Summary

Public constructors
`MutableDoubleList(int initialCapacity)` Creates a `MutableDoubleList` with a `capacity` of `initialCapacity`.

Public methods
`final boolean`	`add(double element)` Adds `element` to the `MutableDoubleList` and returns `true`.
`final void`	`add(@IntRange(from = 0) int index, double element)` Adds `element` to the `MutableDoubleList` at the given `index`, shifting over any elements at `index` and after, if any.
`final boolean`	`addAll(@NonNull double[] elements)` Adds all `elements` to the end of the `MutableDoubleList` and returns `true` if the `MutableDoubleList` was changed or `false` if `elements` was empty.
`final boolean`	`addAll(@NonNull DoubleList elements)` Adds all `elements` to the end of the `MutableDoubleList` and returns `true` if the `MutableDoubleList` was changed or `false` if `elements` was empty.
`final boolean`	`addAll(@IntRange(from = 0) int index, @NonNull double[] elements)` Adds all `elements` to the `MutableDoubleList` at the given `index`, shifting over any elements at `index` and after, if any.
`final boolean`	`addAll(@IntRange(from = 0) int index, @NonNull DoubleList elements)` Adds all `elements` to the `MutableDoubleList` at the given `index`, shifting over any elements at `index` and after, if any.
`final void`	`clear()` Removes all elements in the `MutableDoubleList`.
`final void`	`ensureCapacity(int capacity)` Ensures that there is enough space to store `capacity` elements in the `MutableDoubleList`.
`final int`	`getCapacity()` Returns the total number of elements that can be held before the `MutableDoubleList` must grow.
`final void`	`minusAssign(double element)` `remove` from the `MutableDoubleList`
`final void`	`minusAssign(@NonNull double[] elements)` Removes all `elements` from the `MutableDoubleList`.
`final void`	`minusAssign(@NonNull DoubleList elements)` Removes all `elements` from the `MutableDoubleList`.
`final void`	`plusAssign(double element)` `add` to the `MutableDoubleList`.
`final void`	`plusAssign(@NonNull double[] elements)` Adds all `elements` to the end of the `MutableDoubleList`.
`final void`	`plusAssign(@NonNull DoubleList elements)` Adds all `elements` to the end of the `MutableDoubleList`.
`final boolean`	`remove(double element)` Removes `element` from the `MutableDoubleList`.
`final boolean`	`removeAll(@NonNull double[] elements)` Removes all `elements` from the `MutableDoubleList` and returns `true` if anything was removed.
`final boolean`	`removeAll(@NonNull DoubleList elements)` Removes all `elements` from the `MutableDoubleList` and returns `true` if anything was removed.
`final double`	`removeAt(@IntRange(from = 0) int index)` Removes the element at the given `index` and returns it.
`final void`	`removeRange(@IntRange(from = 0) int start, @IntRange(from = 0) int end)` Removes items from index `start` (inclusive) to `end` (exclusive).
`final boolean`	`retainAll(@NonNull double[] elements)` Keeps only `elements` in the `MutableDoubleList` and removes all other values.
`final boolean`	`retainAll(@NonNull DoubleList elements)` Keeps only `elements` in the `MutableDoubleList` and removes all other values.
`final double`	`set(@IntRange(from = 0) int index, double element)` Sets the value at `index` to `element`.
`final void`	`sort()` Sorts the `MutableDoubleList` elements in ascending order.
`final void`	`sortDescending()` Sorts the `MutableDoubleList` elements in descending order.
`final void`	`trim(int minCapacity)` Reduces the internal storage.

Inherited methods

From androidx.collection.DoubleList

`final boolean`	`any()` Returns `true` if there's at least one element in the collection.
`final boolean`	`any(@NonNull Function1<@NonNull Double, @NonNull Boolean> predicate)` Returns `true` if any of the elements give a `true` return value for `predicate`.
`final int`	`binarySearch(int element, int fromIndex, int toIndex)` Searches this list the specified element in the range defined by `fromIndex` and `toIndex`.
`final boolean`	`contains(double element)` Returns `true` if the `DoubleList` contains `element` or `false` otherwise.
`final boolean`	`containsAll(@NonNull DoubleList elements)` Returns `true` if the `DoubleList` contains all elements in `elements` or `false` if one or more are missing.
`final int`	`count()` Returns the number of elements in this list.
`final int`	`count(@NonNull Function1<@NonNull Double, @NonNull Boolean> predicate)` Counts the number of elements matching `predicate`.
`final double`	`elementAt(@IntRange(from = 0) int index)` Returns the element at the given `index` or throws `IndexOutOfBoundsException` if the `index` is out of bounds of this collection.
`final double`	`elementAtOrElse( @IntRange(from = 0) int index, @NonNull Function1<@NonNull Integer, @NonNull Double> defaultValue )` Returns the element at the given `index` or `defaultValue` if `index` is out of bounds of the collection.
`boolean`	`equals(Object other)` Returns `true` if `other` is a `DoubleList` and the contents of this and `other` are the same.
`final double`	`first()` Returns the first element in the `DoubleList` or throws a `NoSuchElementException` if it `isEmpty`.
`final double`	`first(@NonNull Function1<@NonNull Double, @NonNull Boolean> predicate)` Returns the first element in the `DoubleList` for which `predicate` returns `true` or throws `NoSuchElementException` if nothing matches.
`final @NonNull R`	`<R extends Object> fold( @NonNull R initial, @NonNull Function2<@NonNull acc, @NonNull Double, @NonNull R> operation )` Accumulates values, starting with `initial`, and applying `operation` to each element in the `DoubleList` in order.
`final @NonNull R`	`<R extends Object> foldIndexed( @NonNull R initial, @NonNull Function3<@NonNull Integer, @NonNull acc, @NonNull Double, @NonNull R> operation )` Accumulates values, starting with `initial`, and applying `operation` to each element in the `DoubleList` in order.
`final @NonNull R`	`<R extends Object> foldRight( @NonNull R initial, @NonNull Function2<@NonNull Double, @NonNull acc, @NonNull R> operation )` Accumulates values, starting with `initial`, and applying `operation` to each element in the `DoubleList` in reverse order.
`final @NonNull R`	`<R extends Object> foldRightIndexed( @NonNull R initial, @NonNull Function3<@NonNull Integer, @NonNull Double, @NonNull acc, @NonNull R> operation )` Accumulates values, starting with `initial`, and applying `operation` to each element in the `DoubleList` in reverse order.
`final void`	`forEach(@NonNull Function1<@NonNull Double, Unit> block)` Calls `block` for each element in the `DoubleList`, in order.
`final void`	`forEachIndexed( @NonNull Function2<@NonNull Integer, @NonNull Double, Unit> block )` Calls `block` for each element in the `DoubleList` along with its index, in order.
`final void`	`forEachReversed(@NonNull Function1<@NonNull Double, Unit> block)` Calls `block` for each element in the `DoubleList` in reverse order.
`final void`	`forEachReversedIndexed( @NonNull Function2<@NonNull Integer, @NonNull Double, Unit> block )` Calls `block` for each element in the `DoubleList` along with its index, in reverse order.
`final double`	`get(@IntRange(from = 0) int index)` Returns the element at the given `index` or throws `IndexOutOfBoundsException` if the `index` is out of bounds of this collection.
`final @NonNull IntRange`	`getIndices()` Returns an `IntRange` of the valid indices for this `DoubleList`.
`final @IntRange(from = -1) int`	`getLastIndex()` Returns the last valid index in the `DoubleList`.
`final @IntRange(from = 0) int`	`getSize()` The number of elements in the `DoubleList`.
`int`	`hashCode()` Returns a hash code based on the contents of the `DoubleList`.
`final int`	`indexOf(double element)` Returns the index of `element` in the `DoubleList` or `-1` if `element` is not there.
`final int`	`indexOfFirst( @NonNull Function1<@NonNull Double, @NonNull Boolean> predicate )` Returns the index if the first element in the `DoubleList` for which `predicate` returns `true`.
`final int`	`indexOfLast(@NonNull Function1<@NonNull Double, @NonNull Boolean> predicate)` Returns the index if the last element in the `DoubleList` for which `predicate` returns `true`.
`final boolean`	`isEmpty()` Returns `true` if the `DoubleList` has no elements in it or `false` otherwise.
`final boolean`	`isNotEmpty()` Returns `true` if there are elements in the `DoubleList` or `false` if it is empty.
`final @NonNull String`	`joinToString( @NonNull CharSequence separator, &`

MutableDoubleList

Summary

Public constructors

Public methods

Inherited methods