part7
Class Utilities.Point

java.lang.Object
  part7.Utilities.Point

All Implemented Interfaces:

java.lang.Comparable

Enclosing class:

Utilities

public static class Utilities.Point

extends java.lang.Object

implements java.lang.Comparable

A class used to represent a point (x,y) on an elliptic curve.
Note that objects of type Point are immutable.

Constructor Summary

Utilities.Point(java.math.BigInteger x, java.math.BigInteger y)

Method Summary

int	compareTo(java.lang.Object obj) A method that implements lexicographic ordering of points.
java.math.BigInteger	getX()
java.math.BigInteger	getY()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Utilities.Point

public Utilities.Point(java.math.BigInteger x,
                       java.math.BigInteger y)
                throws java.lang.Exception

Method Detail

compareTo

public int compareTo(java.lang.Object obj)

A method that implements lexicographic ordering of points.
Required by java.language.Comparible to allow objects of type Point to be compared when added to collection types such as AbstractSet.

Specified by:

compareTo in interface java.lang.Comparable

toString

public java.lang.String toString()

getX

public java.math.BigInteger getX()
                          throws java.lang.Exception

Throws:

java.lang.Exception

getY

public java.math.BigInteger getY()
                          throws java.lang.Exception

Throws:

java.lang.Exception