Pair

public class Pair extends Object

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.

Field Summary

public final F	first
public final S	second

Public Constructor Summary

Pair(F first, S second) Constructor for a Pair.

Public Method Summary

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

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

Fields

public final F first

public final S second

Public Constructors

public Pair (F first, S second)

Constructor for a Pair.

Parameters

first	the first object in the Pair
second	the second object in the pair

Public Methods

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

Convenience method for creating an appropriately typed pair.

Parameters

a	the first object in the Pair
b	the second object in the pair

Returns

• a Pair that is templatized with the types of a and b

public boolean equals (Object o)

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

Parameters

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

Returns

• true if the underlying objects of the Pair are both considered equal

public int hashCode ()

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

Returns

• a hashcode of the Pair