jautil

Class MapInt<E>

java.lang.Object

jautil.MapInt<E>

public class MapInt<E>
extends java.lang.Object

A generic map whose conceptual domain type is int, represented concretely by an integer wrapper class. By default the underlying Map implementation used is a TreeMap.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MapInt.Int Wrapper class for an integer, acting a MapInt key.

Constructor Summary

Constructors

Constructor and Description
MapInt() Constructs a new MapInt, using a new TreeMap instance.
MapInt(java.util.Map<MapInt.Int,E> mp) Constructs a new MapInt using the given Map.

Method Summary

Modifier and Type	Method and Description
void	clear() Clears this map.
E	get(int k) Returns the value to which the given key is mapped, or null if none.
static MapInt.Int.Comp	getIntComp() Returns a comparator for the built-in integer wrapper class.
void	getValues(E[] values) Places the values in this map in the given array, which should be of the correct size, i.e.
int[]	keys() Returns this map's key set as an array of int.
void	put(int k, E val) Updates this map with an entry mapping the given key to the given value.
void	setMap(java.util.Map<MapInt.Int,E> mp) Sets the underlying Map for this IntMap.
int	size() Returns the size of this map.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapInt

public MapInt(java.util.Map<MapInt.Int,E> mp)

Constructs a new MapInt using the given Map.

MapInt

public MapInt()

Constructs a new MapInt, using a new TreeMap instance.

Method Detail

getIntComp

public static final MapInt.Int.Comp getIntComp()

Returns a comparator for the built-in integer wrapper class.

setMap

public void setMap(java.util.Map<MapInt.Int,E> mp)

Sets the underlying Map for this IntMap.

clear

public void clear()

Clears this map.

size

public int size()

Returns the size of this map.

put

public void put(int k,
                E val)

Updates this map with an entry mapping the given key to the given value.

getValues

public void getValues(E[] values)

Places the values in this map in the given array, which should be of the correct size, i.e. that given by size().

get

public E get(int k)

Returns the value to which the given key is mapped, or null if none.

keys

public int[] keys()

Returns this map's key set as an array of int.