org.eclipse.jdt.internal.compiler.codegen
类 IntegerCache

java.lang.Object
  org.eclipse.jdt.internal.compiler.codegen.IntegerCache

public class IntegerCache
extends Object

字段摘要

int[]	keyTable
int[]	valueTable

构造方法摘要

IntegerCache()
Constructs a new, empty hashtable.

IntegerCache(int initialCapacity)
Constructs a new, empty hashtable with the specified initial capacity.

方法摘要

void	clear() Clears the hash table so that it has no more elements in it.
boolean	containsKey(int key) Returns true if the collection contains an element for the key.
int	hash(int key) Return a hashcode for the value of the key parameter.
int	put(int key, int value) Puts the specified element into the hashtable, using the specified key.
int	putIfAbsent(int key, int value) Puts the specified element into the hashtable if absent, using the specified key.
int	size() Returns the number of elements contained in the hashtable.
String	toString() Converts to a rather lengthy String.

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细信息

keyTable

public int[] keyTable

valueTable

public int[] valueTable

构造方法详细信息

IntegerCache

public IntegerCache()

Constructs a new, empty hashtable. A default capacity and load factor is used. Note that the hashtable will automatically grow when it gets full.

IntegerCache

public IntegerCache(int initialCapacity)

Constructs a new, empty hashtable with the specified initial capacity.

参数：

initialCapacity - int the initial number of buckets

方法详细信息

clear

public void clear()

Clears the hash table so that it has no more elements in it.

containsKey

public boolean containsKey(int key)

Returns true if the collection contains an element for the key.

参数：

key - double the key that we are looking for

返回：

boolean

hash

public int hash(int key)

Return a hashcode for the value of the key parameter.

参数：

key - int

返回：

int the hash code corresponding to the key value

put

public int put(int key,
               int value)

Puts the specified element into the hashtable, using the specified key. The element may be retrieved by doing a get() with the same key.

参数：

key - int the specified key in the hashtable

value - int the specified element

返回：

int value

putIfAbsent

public int putIfAbsent(int key,
                       int value)

Puts the specified element into the hashtable if absent, using the specified key. The element may be retrieved by doing a get() with the same key.

参数：

key - int the specified key in the hashtable

value - int the specified element

返回：

int value

size

public int size()

Returns the number of elements contained in the hashtable.

返回：

int The size of the table

toString

public String toString()

Converts to a rather lengthy String.

覆盖：

类 Object 中的 toString

返回：

String the ascii representation of the receiver