com.groiss.ds

Class Pair<F,S>

java.lang.Object

com.groiss.ds.Pair<F,S>

All Implemented Interfaces:

KeyValuePair<F,S>, Serializable

Direct Known Subclasses:

ComparablePair, Parameter

public class Pair<F,S>
extends Object
implements KeyValuePair<F,S>, Serializable

A Pair is an object that contains two other objects. It is most commonly used for conveniently storing and passing pairs of objects.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
F	first The first object.
S	second The second object.

Constructor Summary

Constructors

Constructor and Description
Pair()
Pair(F first, S second) Constructor for holding a pair of objects.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Returns true if obj is also a Pair and contains two objects equal to the two objects of this Pair.
F	getKey() Return the first object
S	getValue() Return the second object
int	hashCode() Builds a new hash code out of the two objects' hash codes.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

first

public F first

The first object.

second

public S second

The second object.

Constructor Detail

Pair

public Pair()

Pair

public Pair(F first,
            S second)

Constructor for holding a pair of objects.

Method Detail

getKey

public F getKey()

Return the first object

Specified by:

getKey in interface KeyValuePair<F,S>

getValue

public S getValue()

Return the second object

Specified by:

getValue in interface KeyValuePair<F,S>

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Returns true if obj is also a Pair and contains two objects equal to the two objects of this Pair. null references are considered as equal, too.

Overrides:

equals in class Object

hashCode

public int hashCode()

Builds a new hash code out of the two objects' hash codes.

Overrides:

hashCode in class Object