processing.data

Class LongList

Object

LongList

All Implemented Interfaces:

Iterable<Long>

public class LongList
extends Object
implements Iterable<Long>

Helper class for a list of ints. Lists are designed to have some of the features of ArrayLists, but to maintain the simplicity and efficiency of working with arrays. Functions like sort() and shuffle() always act on the list itself. To get a sorted copy, use list.copy().sort().

See Also:

FloatList, StringList

Constructor Summary

Constructors

Constructor and Description
LongList()
LongList(int length)
LongList(int[] source)
LongList(Iterable<Object> iter) Construct an IntList from an iterable pile of objects.
LongList(Object... items) Construct an IntList from a random pile of objects.

Method Summary

Modifier and Type	Method and Description
void	add(int index, int amount)
void	append(int[] values)
void	append(long value) Add a new entry to the list.
void	append(LongList list)
void	appendUnique(int value) Add this value, but only if it's not already in the list.
int[]	array() Create a new array with a copy of all the values.
int[]	array(int[] array) Copy values into the specified array.
void	clear() Remove all entries from the list.
LongList	copy()
void	div(int index, int amount)
static LongList	fromRange(int stop)
static LongList	fromRange(int start, int stop)
long	get(int index) Get an entry at a particular index.
FloatList	getPercent() Returns a normalized version of this array.
LongList	getSubset(int start)
LongList	getSubset(int start, int num)
boolean	hasValue(int value)
void	increment(int index)
int	index(int what) Return the first index of a particular value.
void	insert(int index, long value)
void	insert(int index, long[] values)
void	insert(int index, LongList list)
Iterator<Long>	iterator()
String	join(String separator)
long	max()
int	maxIndex()
long	min()
int	minIndex()
void	mult(int index, int amount)
long	pop()
void	print()
void	push(int value) Just an alias for append(), but matches pop()
long	remove(int index) Remove an element from the specified index
int	removeValue(int value)
int	removeValues(int value)
void	resize(int length)
void	reverse()
void	save(File file) Save tab-delimited entries to a file (TSV format, UTF-8 encoding)
void	set(int index, int what) Set the entry at a particular index.
void	shuffle() Randomize the order of the list elements.
void	shuffle(PApplet sketch) Randomize the list order using the random() function from the specified sketch, allowing shuffle() to use its current randomSeed() setting.
int	size() Get the length of the list.
void	sort() Sorts the array in place.
void	sortReverse() Reverse sort, orders values from highest to lowest.
void	sub(int index, int amount)
int	sum()
long	sumLong()
String	toJSON() Return this dictionary as a String in JSON format.
String	toString()
long[]	values() Returns the actual array being used to store the data.
void	write(PrintWriter writer) Write entries to a PrintWriter, one per line

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Iterable

forEach, spliterator

Constructor Detail

LongList

public LongList()

LongList

public LongList(int length)

LongList

public LongList(int[] source)

LongList

public LongList(Iterable<Object> iter)

Construct an IntList from an iterable pile of objects. For instance, a float array, an array of strings, who knows). Un-parseable or null values will be set to 0.

LongList

public LongList(Object... items)

Construct an IntList from a random pile of objects. Un-parseable or null values will be set to zero.

Method Detail

fromRange

public static LongList fromRange(int stop)

fromRange

public static LongList fromRange(int start,
                                 int stop)

size

public int size()

Get the length of the list.

In brief:

Get the length of the list

resize

public void resize(int length)

clear

public void clear()

Remove all entries from the list.

In brief:

Remove all entries from the list

get

public long get(int index)

Get an entry at a particular index.

In brief:

Get an entry at a particular index

set

public void set(int index,
                int what)

Set the entry at a particular index. If the index is past the length of the list, it'll expand the list to accommodate, and fill the intermediate entries with 0s.

In brief:

Set the entry at a particular index

push

public void push(int value)

Just an alias for append(), but matches pop()

pop

public long pop()

remove

public long remove(int index)

Remove an element from the specified index

In brief:

Remove an element from the specified index

removeValue

public int removeValue(int value)

removeValues

public int removeValues(int value)

append

public void append(long value)

Add a new entry to the list.

In brief:

Add a new entry to the list

append

public void append(int[] values)

append

public void append(LongList list)

appendUnique

public void appendUnique(int value)

Add this value, but only if it's not already in the list.

insert

public void insert(int index,
                   long value)

insert

public void insert(int index,
                   long[] values)

insert

public void insert(int index,
                   LongList list)

index

public int index(int what)

Return the first index of a particular value.

hasValue

public boolean hasValue(int value)

In brief:

Check if a number is a part of the list

increment

public void increment(int index)

In brief:

Add one to a value

add

public void add(int index,
                int amount)

In brief:

Add to a value

sub

public void sub(int index,
                int amount)

In brief:

Subtract from a value

mult

public void mult(int index,
                 int amount)

In brief:

Multiply a value

div

public void div(int index,
                int amount)

In brief:

Divide a value

min

public long min()

In brief:

Return the smallest value

minIndex

public int minIndex()

max

public long max()

In brief:

Return the largest value

maxIndex

public int maxIndex()

sum

public int sum()

sumLong

public long sumLong()

sort

public void sort()

Sorts the array in place.

In brief:

Sorts the array, lowest to highest

sortReverse

public void sortReverse()

Reverse sort, orders values from highest to lowest.

In brief:

Reverse sort, orders values from highest to lowest

reverse

public void reverse()

In brief:

Reverse the order of the list elements

shuffle

public void shuffle()

Randomize the order of the list elements. Note that this does not obey the randomSeed() function in PApplet.

In brief:

Randomize the order of the list elements

shuffle

public void shuffle(PApplet sketch)

Randomize the list order using the random() function from the specified sketch, allowing shuffle() to use its current randomSeed() setting.

copy

public LongList copy()

values

public long[] values()

Returns the actual array being used to store the data. For advanced users, this is the fastest way to access a large list. Suitable for iterating with a for() loop, but modifying the list will have terrible consequences.

iterator

public Iterator<Long> iterator()

Specified by:

iterator in interface Iterable<Long>

array

public int[] array()

Create a new array with a copy of all the values.

Returns:

an array sized by the length of the list with each of the values.

In brief:

Create a new array with a copy of all the values

array

public int[] array(int[] array)

Copy values into the specified array. If the specified array is null or not the same size, a new array will be allocated.

Parameters:

array -

getPercent

public FloatList getPercent()

Returns a normalized version of this array. Called getPercent() for consistency with the Dict classes. It's a getter method because it needs to returns a new list (because IntList/Dict can't do percentages or normalization in place on int values).

getSubset

public LongList getSubset(int start)

getSubset

public LongList getSubset(int start,
                          int num)

join

public String join(String separator)

print

public void print()

save

public void save(File file)

Save tab-delimited entries to a file (TSV format, UTF-8 encoding)

write

public void write(PrintWriter writer)

Write entries to a PrintWriter, one per line

toJSON

public String toJSON()

Return this dictionary as a String in JSON format.

toString

public String toString()

Overrides:

toString in class Object