lightbulb_outline Help shape the future of the Google Play Console, Android Studio, and Firebase. Start survey

Pair

public class Pair
extends Object

java.lang.Object
   ↳ android.util.Pair<F, S>


Container to ease passing around a tuple of two objects. This object provides a sensible implementation of equals(), returning true if equals() is true on each of the contained objects.

Summary

Fields

public final F first

public final S second

Public constructors

Pair(F first, S second)

Constructor for a Pair.

Public methods

static <A, B> Pair<A, B> create(A a, B b)

Convenience method for creating an appropriately typed pair.

boolean equals(Object o)

Checks the two objects for equality by delegating to their respective Object.equals(Object) methods.

int hashCode()

Compute a hash code using the hash codes of the underlying objects

String toString()

Returns a string representation of the object.

Inherited methods

Fields

first

added in API level 5
public final F first

second

added in API level 5
public final S second

Public constructors

Pair

added in API level 5
public Pair (F first, 
                S second)

Constructor for a Pair.

Parameters
first F: the first object in the Pair

second S: the second object in the pair

Public methods

create

added in API level 5
public static Pair<A, B> create (A a, 
                B b)

Convenience method for creating an appropriately typed pair.

Parameters
a A: the first object in the Pair

b B: the second object in the pair

Returns
Pair<A, B> a Pair that is templatized with the types of a and b

equals

added in API level 5
public boolean equals (Object o)

Checks the two objects for equality by delegating to their respective Object.equals(Object) methods.

Parameters
o Object: the Pair to which this one is to be checked for equality

Returns
boolean true if the underlying objects of the Pair are both considered equal

hashCode

added in API level 5
public int hashCode ()

Compute a hash code using the hash codes of the underlying objects

Returns
int a hashcode of the Pair

toString

added in API level 5
public String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
String a string representation of the object.