util
Class Pair<A,B>

java.lang.Object
  util.Pair<A,B>

Type Parameters:

A - the type of the first component

B - the type of the second component

Direct Known Subclasses:

MutablePair, ObjectEdge, UnorderedPair

public class Pair<A,B>
extends Object

An ordered pair.

Field Summary

protected A	first
protected B	second

Constructor Summary

Pair(A first, B second)
Creates an ordered pair with the specified components

Method Summary

boolean	equals(Object other)
protected boolean	equals(Object x, Object y) Compares two objects for equality taking care of null references
A	getFirst()
B	getSecond()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

first

protected final A first

second

protected final B second

Constructor Detail

Pair

public Pair(A first,
            B second)

Creates an ordered pair with the specified components

Parameters:

first - the first component

second - the second component

Method Detail

getFirst

public A getFirst()

Returns:

the first component of the pair

getSecond

public B getSecond()

Returns:

the second component of the pair

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

equals

protected final boolean equals(Object x,
                               Object y)

Compares two objects for equality taking care of null references

Parameters:

x - an object

y - an object

Returns:

returns true when x equals y or if both are null

hashCode

public int hashCode()

Overrides:

hashCode in class Object