com.groiss.ds
Class Pair

java.lang.Object
  com.groiss.ds.Pair

All Implemented Interfaces:

KeyValuePair, java.io.Serializable

Direct Known Subclasses:

ComparablePair

public class Pair
extends java.lang.Object
implements KeyValuePair, java.io.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

java.lang.Object	first The first object.
java.lang.Object	second The second object.

Constructor Summary

Pair()

Pair(java.lang.Object first, java.lang.Object second)
Constructor for holding a pair of objects.

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

first

public java.lang.Object first

The first object.

second

public java.lang.Object second

The second object.

Constructor Detail

Pair

public Pair()

Pair

public Pair(java.lang.Object first,
            java.lang.Object second)

Constructor for holding a pair of objects.

Method Detail

getKey

public java.lang.Object getKey()

Return the first object

Specified by:

getKey in interface KeyValuePair

getValue

public java.lang.Object getValue()

Return the second object

Specified by:

getValue in interface KeyValuePair

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.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 java.lang.Object

hashCode

public int hashCode()

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

Overrides:

hashCode in class java.lang.Object