belongs to Maven artifact com.android.support:support-compat:28.0.0-alpha1
ObjectsCompat
public
class
ObjectsCompat
extends Object
| java.lang.Object | |
| ↳ | android.support.v4.util.ObjectsCompat |
This class consists of static utility methods for operating on objects.
Summary
Public methods | |
|---|---|
static
boolean
|
equals(Object a, Object b)
Returns |
static
int
|
hash(Object... values)
Generates a hash code for a sequence of input values. |
static
int
|
hashCode(Object o)
Returns the hash code of a non- |
Inherited methods | |
|---|---|
From
class
java.lang.Object
| |
Public methods
equals
boolean equals (Object a,
Object b)Returns true if the arguments are equal to each other
and false otherwise.
Consequently, if both arguments are null, true
is returned and if exactly one argument is null, false is returned. Otherwise, equality is determined by using
the equals method of the first
argument.
| Parameters | |
|---|---|
a |
Object: an object |
b |
Object: an object to be compared with a for equality |
| Returns | |
|---|---|
boolean |
true if the arguments are equal to each other
and false otherwise |
See also:
hash
int hash (Object... values)
Generates a hash code for a sequence of input values. The hash code is generated as if all
the input values were placed into an array, and that array were hashed by calling
hashCode(Object[]).
This method is useful for implementing hashCode() on objects containing
multiple fields. For example, if an object that has three fields, x, y, and
z, one could write:
Warning: When a single object reference is supplied, the returned value does not equal the hash code of that object reference. This value can be computed by calling@Override public int hashCode() { return ObjectsCompat.hash(x, y, z); }
hashCode(Object).
| Parameters | |
|---|---|
values |
Object: the values to be hashed |
| Returns | |
|---|---|
int |
a hash value of the sequence of input values |
See also:
hashCode
int hashCode (Object o)
Returns the hash code of a non-null argument and 0 for a null argument.
| Parameters | |
|---|---|
o |
Object: an object |
| Returns | |
|---|---|
int |
the hash code of a non-null argument and 0 for a null argument |
See also: