Udostępnij za pośrednictwem


ConcurrentHashMap Constructors

Definition

Overloads

ConcurrentHashMap()

Creates a new, empty map with the default initial table size (16).

ConcurrentHashMap(IDictionary)

Creates a new map with the same mappings as the given map.

ConcurrentHashMap(Int32)

Creates a new, empty map with an initial table size accommodating the specified number of elements without the need to dynamically resize.

ConcurrentHashMap(Int32, Single)

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity) and initial table density (loadFactor).

ConcurrentHashMap(IntPtr, JniHandleOwnership)

A constructor used when creating managed representations of JNI objects; called by the runtime.

ConcurrentHashMap(Int32, Single, Int32)

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity), initial table density (loadFactor), and number of concurrently updating threads (concurrencyLevel).

ConcurrentHashMap()

Creates a new, empty map with the default initial table size (16).

[Android.Runtime.Register(".ctor", "()V", "")]
public ConcurrentHashMap ();
Attributes

Remarks

Creates a new, empty map with the default initial table size (16).

Java documentation for java.util.concurrent.ConcurrentHashMap.ConcurrentHashMap().

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ConcurrentHashMap(IDictionary)

Creates a new map with the same mappings as the given map.

[Android.Runtime.Register(".ctor", "(Ljava/util/Map;)V", "")]
public ConcurrentHashMap (System.Collections.IDictionary m);
[<Android.Runtime.Register(".ctor", "(Ljava/util/Map;)V", "")>]
new Java.Util.Concurrent.ConcurrentHashMap : System.Collections.IDictionary -> Java.Util.Concurrent.ConcurrentHashMap

Parameters

m
IDictionary

the map

Attributes

Remarks

Creates a new map with the same mappings as the given map.

Java documentation for java.util.concurrent.ConcurrentHashMap.ConcurrentHashMap(java.util.Map<? extends K, ? extends V>).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ConcurrentHashMap(Int32)

Creates a new, empty map with an initial table size accommodating the specified number of elements without the need to dynamically resize.

[Android.Runtime.Register(".ctor", "(I)V", "")]
public ConcurrentHashMap (int initialCapacity);
[<Android.Runtime.Register(".ctor", "(I)V", "")>]
new Java.Util.Concurrent.ConcurrentHashMap : int -> Java.Util.Concurrent.ConcurrentHashMap

Parameters

initialCapacity
Int32

The implementation performs internal sizing to accommodate this many elements.

Attributes

Exceptions

if the initial capacity of elements is negative

Remarks

Creates a new, empty map with an initial table size accommodating the specified number of elements without the need to dynamically resize.

Java documentation for java.util.concurrent.ConcurrentHashMap.ConcurrentHashMap(int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ConcurrentHashMap(Int32, Single)

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity) and initial table density (loadFactor).

[Android.Runtime.Register(".ctor", "(IF)V", "")]
public ConcurrentHashMap (int initialCapacity, float loadFactor);
[<Android.Runtime.Register(".ctor", "(IF)V", "")>]
new Java.Util.Concurrent.ConcurrentHashMap : int * single -> Java.Util.Concurrent.ConcurrentHashMap

Parameters

initialCapacity
Int32

the initial capacity. The implementation performs internal sizing to accommodate this many elements, given the specified load factor.

loadFactor
Single

the load factor (table density) for establishing the initial table size

Attributes

Exceptions

if the initial capacity of elements is negative or the load factor is nonpositive

Remarks

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity) and initial table density (loadFactor).

Added in 1.6.

Java documentation for java.util.concurrent.ConcurrentHashMap.ConcurrentHashMap(int, float).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ConcurrentHashMap(IntPtr, JniHandleOwnership)

A constructor used when creating managed representations of JNI objects; called by the runtime.

protected ConcurrentHashMap (IntPtr javaReference, Android.Runtime.JniHandleOwnership transfer);
new Java.Util.Concurrent.ConcurrentHashMap : nativeint * Android.Runtime.JniHandleOwnership -> Java.Util.Concurrent.ConcurrentHashMap

Parameters

javaReference
IntPtr

nativeint

A IntPtrcontaining a Java Native Interface (JNI) object reference.

transfer
JniHandleOwnership

A JniHandleOwnershipindicating how to handle javaReference

Remarks

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

ConcurrentHashMap(Int32, Single, Int32)

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity), initial table density (loadFactor), and number of concurrently updating threads (concurrencyLevel).

[Android.Runtime.Register(".ctor", "(IFI)V", "")]
public ConcurrentHashMap (int initialCapacity, float loadFactor, int concurrencyLevel);
[<Android.Runtime.Register(".ctor", "(IFI)V", "")>]
new Java.Util.Concurrent.ConcurrentHashMap : int * single * int -> Java.Util.Concurrent.ConcurrentHashMap

Parameters

initialCapacity
Int32

the initial capacity. The implementation performs internal sizing to accommodate this many elements, given the specified load factor.

loadFactor
Single

the load factor (table density) for establishing the initial table size

concurrencyLevel
Int32

the estimated number of concurrently updating threads. The implementation may use this value as a sizing hint.

Attributes

Exceptions

if the initial capacity is negative or the load factor or concurrencyLevel are nonpositive

Remarks

Creates a new, empty map with an initial table size based on the given number of elements (initialCapacity), initial table density (loadFactor), and number of concurrently updating threads (concurrencyLevel).

Java documentation for java.util.concurrent.ConcurrentHashMap.ConcurrentHashMap(int, float, int).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to