Package com.github.tommyettinger.ds

Class IntBag

java.lang.Object

com.github.tommyettinger.ds.IntList

com.github.tommyettinger.ds.IntBag

All Implemented Interfaces:

Arrangeable, Ordered.OfInt, PrimitiveCollection<Integer>, PrimitiveCollection.OfInt

public class IntBag
extends IntList

An unordered List of int items. This allows efficient iteration via a reused iterator or via index. This class avoids a memory copy when removing elements (the last element is moved to the removed element's position). Items are permitted to change position in the ordering when any item is removed or added. Although this won't keep an order during modifications, you can IntList.sort() the bag to ensure, if no modifications are made later, that the iteration will happen in sorted order.

Nested Class Summary

Nested classes/interfaces inherited from class com.github.tommyettinger.ds.IntList

IntList.IntListIterator

Nested classes/interfaces inherited from interface com.github.tommyettinger.ds.Arrangeable

Arrangeable.ArrangeableList<T>

Nested classes/interfaces inherited from interface com.github.tommyettinger.ds.PrimitiveCollection

PrimitiveCollection.OfBoolean, PrimitiveCollection.OfByte, PrimitiveCollection.OfChar, PrimitiveCollection.OfDouble, PrimitiveCollection.OfFloat, PrimitiveCollection.OfInt, PrimitiveCollection.OfLong, PrimitiveCollection.OfShort

Field Summary

Fields inherited from class com.github.tommyettinger.ds.IntList

items, iterator1, iterator2, size

Constructor Summary

Constructors

Constructor	Description
IntBag()	Creates an ordered bag with a capacity of 10.
IntBag(int capacity)	Creates an ordered bag with the specified capacity.
IntBag(int[] array)	Creates a new bag containing the elements in the specified array.
IntBag(int[] array, int startIndex, int count)	Creates a new bag containing the elements in the specified array.
IntBag(IntList list)	Creates a new bag containing the elements in the specific list or bag.
IntBag(Ordered.OfInt other)	Copies the given Ordered.OfInt into a new bag.
IntBag(Ordered.OfInt other, int offset, int count)	Creates a new bag by copying count items from the given Ordered, starting at offset in that Ordered, into this.
IntBag(PrimitiveCollection.OfInt coll)	Creates a new bag containing the items in the specified PrimitiveCollection.OfInt.
IntBag(IntIterator coll)	Creates a new instance containing the items in the specified iterator.

Method Summary

Modifier and Type	Method	Description
int	hashCode()
void	insert(int index, int element)	This always adds element to the end of this bag's ordering.
boolean	keepsOrder()	Returns true if this implementation retains order, which it does not.
static IntBag	parse(String str, String delimiter)	Calls parse(String, String, boolean) with brackets set to false.
static IntBag	parse(String str, String delimiter, boolean brackets)	Creates a new collection and fills it by calling PrimitiveCollection.OfInt.addLegible(String, String, int, int) on either all of str (if brackets is false) or str without its first and last chars (if brackets is true).
static IntBag	parse(String str, String delimiter, int offset, int length)	Creates a new collection and fills it by calling PrimitiveCollection.OfInt.addLegible(String, String, int, int) with the given four parameters as-is.
int	removeAt(int index)	Removes and returns the item at the specified index.
void	removeRange(int start, int end)	Removes the items between the specified start index, inclusive, and end index, exclusive.
static IntBag	with()	Constructs an empty bag.
static IntBag	with(int item)	Creates a new IntBag that holds only the given item, but can be resized.
static IntBag	with(int... varargs)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2, int item3)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2, int item3, int item4)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2, int item3, int item4, int item5)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2, int item3, int item4, int item5, int item6)	Creates a new IntBag that holds only the given items, but can be resized.
static IntBag	with(int item0, int item1, int item2, int item3, int item4, int item5, int item6, int item7)	Creates a new IntBag that holds only the given items, but can be resized.

Methods inherited from class com.github.tommyettinger.ds.IntList

add, add, add, add, addAll, addAll, addAll, addAll, addAll, addAll, clear, contains, containsAll, div, div, duplicateRange, ensureCapacity, equals, first, get, indexOf, isEmpty, iterator, lastIndexOf, minus, minus, notEmpty, order, peek, plus, plus, pop, random, rem, rem, remove, removeAll, removeEach, replaceAll, replaceAll, replaceFirst, resize, retainAll, reverse, set, setSize, shrink, shuffle, size, sort, sort, sort, sort, swap, times, times, toArray, toArray, toString, trimToSize, truncate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.github.tommyettinger.ds.Arrangeable

rearrange, shuffle

Methods inherited from interface com.github.tommyettinger.ds.Ordered.OfInt

getOrderType, random, selectRanked, selectRankedIndex

Methods inherited from interface com.github.tommyettinger.ds.PrimitiveCollection.OfInt

addAll, addAll, addDense, addDense, addLegible, addLegible, addVarargs, appendTo, appendTo, containsAll, containsAll, containsAll, containsAll, containsAny, containsAny, containsAny, containsAny, denseAppendTo, equalContents, forEach, removeAll, removeAll, removeAll, removeEach, removeEach, removeEach, removeIf, retainAll, retainAll, toDenseString, toDenseString, toString, toString, toString

Constructor Details

IntBag

public IntBag()

Creates an ordered bag with a capacity of 10.

IntBag

public IntBag(int capacity)

Creates an ordered bag with the specified capacity.

Parameters:

capacity -

IntBag

public IntBag(IntList list)

Creates a new bag containing the elements in the specific list or bag. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown.

Parameters:

list - another IntList or IntBag

IntBag

public IntBag(int[] array)

Creates a new bag containing the elements in the specified array. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown.

Parameters:

array - a non-null int array to add to this bag

IntBag

public IntBag(int[] array,
 int startIndex,
 int count)

Creates a new bag containing the elements in the specified array. The capacity is set to the number of elements, so any subsequent elements added will cause the backing array to be grown.

Parameters:

array - a non-null int array to add to this bag

startIndex - the first index in array to use

count - how many items to use from array

IntBag

public IntBag(PrimitiveCollection.OfInt coll)

Creates a new bag containing the items in the specified PrimitiveCollection.OfInt.

Parameters:

coll - a primitive collection that will have its contents added to this

IntBag

public IntBag(IntIterator coll)

Creates a new instance containing the items in the specified iterator.

Parameters:

coll - an iterator that will have its remaining contents added to this

IntBag

public IntBag(Ordered.OfInt other)

Copies the given Ordered.OfInt into a new bag.

Parameters:

other - another Ordered.OfInt

IntBag

public IntBag(Ordered.OfInt other,
 int offset,
 int count)

Creates a new bag by copying count items from the given Ordered, starting at offset in that Ordered, into this.

Parameters:

other - another Ordered.OfInt

offset - the first index in other's ordering to draw an item from

count - how many items to copy from other

Method Details

keepsOrder

public boolean keepsOrder()

Returns true if this implementation retains order, which it does not.

Overrides:

keepsOrder in class IntList

Returns:

false

insert

public void insert(int index,
 int element)

This always adds element to the end of this bag's ordering.

Overrides:

insert in class IntList

Parameters:

index - ignored

element - element to be inserted

removeAt

public int removeAt(int index)

Removes and returns the item at the specified index. Note that this is equivalent to List.remove(int), but can't have that name because we also have IntList.remove(int) that removes a value, rather than an index.

Overrides:

removeAt in class IntList

Parameters:

index - the index of the item to remove and return

Returns:

the removed item

removeRange

public void removeRange(int start,
 int end)

Removes the items between the specified start index, inclusive, and end index, exclusive. Note that this takes different arguments than some other range-related methods; this needs a start index and an end index, rather than a count of items. This matches the behavior in the JDK collections.

Specified by:

removeRange in interface Ordered.OfInt

Overrides:

removeRange in class IntList

Parameters:

start - the first index to remove, inclusive

end - the last index (after what should be removed), exclusive

hashCode

public int hashCode()

Specified by:

hashCode in interface PrimitiveCollection<Integer>

Overrides:

hashCode in class IntList

with

public static IntBag with()

Constructs an empty bag. This is usually less useful than just using the constructor, but can be handy in some code-generation scenarios when you don't know how many arguments you will have.

Returns:

a new bag containing nothing

with

public static IntBag with(int item)

Creates a new IntBag that holds only the given item, but can be resized.

Parameters:

item - an int item

Returns:

a new IntBag that holds the given item

with

public static IntBag with(int item0,
 int item1)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2,
 int item3)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

item3 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2,
 int item3,
 int item4)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

item3 - an int item

item4 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2,
 int item3,
 int item4,
 int item5)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

item3 - an int item

item4 - an int item

item5 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2,
 int item3,
 int item4,
 int item5,
 int item6)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

item3 - an int item

item4 - an int item

item5 - an int item

item6 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int item0,
 int item1,
 int item2,
 int item3,
 int item4,
 int item5,
 int item6,
 int item7)

Creates a new IntBag that holds only the given items, but can be resized.

Parameters:

item0 - an int item

item1 - an int item

item2 - an int item

item3 - an int item

item4 - an int item

item5 - an int item

item6 - an int item

Returns:

a new IntBag that holds the given items

with

public static IntBag with(int... varargs)

Creates a new IntBag that holds only the given items, but can be resized. This overload will only be used when an array is supplied and the type of the items requested is the component type of the array, or if varargs are used and there are 9 or more arguments.

Parameters:

varargs - an int varargs or int array; remember that varargs allocate

Returns:

a new IntBag that holds the given items

parse

public static IntBag parse(String str,
 String delimiter)

Calls parse(String, String, boolean) with brackets set to false.

Parameters:

str - a String that will be parsed in full

delimiter - the delimiter between items in str

Returns:

a new collection parsed from str

parse

public static IntBag parse(String str,
 String delimiter,
 boolean brackets)

Creates a new collection and fills it by calling PrimitiveCollection.OfInt.addLegible(String, String, int, int) on either all of str (if brackets is false) or str without its first and last chars (if brackets is true). Each item is expected to be separated by delimiter.

Parameters:

str - a String that will be parsed in full (depending on brackets)

delimiter - the delimiter between items in str

brackets - if true, the first and last chars in str will be ignored

Returns:

a new collection parsed from str

parse

public static IntBag parse(String str,
 String delimiter,
 int offset,
 int length)

Creates a new collection and fills it by calling PrimitiveCollection.OfInt.addLegible(String, String, int, int) with the given four parameters as-is.

Parameters:

str - a String that will have the given section parsed

delimiter - the delimiter between items in str

offset - the first position to parse in str, inclusive

length - how many chars to parse, starting from offset

Returns:

a new collection parsed from str