public class AccessibleOperation extends Object
SystemCapability.Accessibility#ABILITY| 构造器 | 说明 |
|---|---|
AccessibleOperation(int operationType,
CharSequence description) |
A constructor used to create an
AccessibileOperation instance based on the specified operation type and
description. |
| 限定符和类型 | 方法 | 说明 |
|---|---|---|
boolean |
equals(Object other) |
Indicates whether some other object is "equal to" this one.
|
CharSequence |
getDescriptionInfo() |
Obtains the operation description.
|
int |
getOperationType() |
Obtains the operation type.
|
int |
hashCode() |
Returns a hash code value for the object.
|
public AccessibleOperation(int operationType,
CharSequence description)
AccessibileOperation instance based on the specified operation type and
description.operationType - Indicates the type of the accessibility operation.description - Indicates the description of the accessibility operation.public int getOperationType()
public CharSequence getDescriptionInfo()
public int hashCode()
ObjectHashMap.
The general contract of hashCode is:
hashCode method
must consistently return the same integer, provided no information
used in equals comparisons on the object is modified.
This integer need not remain consistent from one execution of an
application to another execution of the same application.
equals(Object)
method, then calling the hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by
class Object does return distinct integers for distinct
objects. (This is typically implemented by converting the internal
address of the object into an integer, but this implementation
technique is not required by the
Java™ programming language.)
hashCode 在类中 ObjectObject.equals(java.lang.Object),
System.identityHashCode(java.lang.Object)public boolean equals(Object other)
Object
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode method, which states
that equal objects must have equal hash codes.
equals 在类中 Objectother - the reference object with which to compare.true if this object is the same as the obj
argument; false otherwise.Object.hashCode(),
HashMap