Package xal.tools.math

Class ClosedInterval

java.lang.Object

xal.tools.math.Interval

xal.tools.math.ClosedInterval

All Implemented Interfaces:

Serializable

public class ClosedInterval
extends Interval

Represents a closed interval of the real line.

Author:

Christopher K. Allen

See Also:

• Serialized Form

Field Summary

Fields inherited from class xal.tools.math.Interval

REAL_LINE

Constructor Summary

Constructors

Constructor	Description
ClosedInterval()	Default constructor - creates a new instance of Interval with one point, the origin.
ClosedInterval(double pt)	Initializing constructor - creates a single point (zero length) interval given by the value of the argument pt.
ClosedInterval(double min, double max)	Initializing constructor - create a new open interval with specified endpoints.
ClosedInterval(Interval interval)	Copy constructor - create a new open interval initialized to the argument.

Method Summary

Modifier and Type	Method	Description
boolean	contains(ClosedInterval interval)	Is the given interval a subset of this interval.
boolean	equals(Object obj)	Are intervals equal
int	hashCode()
boolean	intersect(ClosedInterval interval)	Is there a nonzero intersection between this interval and the argument.
boolean	membership(double x)	Is point a member of the open interval
String	toString()	Return the contents of the interval as a String.

Methods inherited from class xal.tools.math.Interval

containsAE, convexHull, createFromEndpoints, createFromMidpoint, getMax, getMin, intersection, intersects, isBoundary, isRealLine, measure, midpoint, print, println, setMax, setMin, vertexCoordinates

Methods inherited from class java.lang.Object

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

Constructor Details

ClosedInterval

public ClosedInterval()

Default constructor - creates a new instance of Interval with one point, the origin.

ClosedInterval

public ClosedInterval(double pt)

Initializing constructor - creates a single point (zero length) interval given by the value of the argument pt.

Parameters:

pt - The single point contained in the interval

ClosedInterval

public ClosedInterval(double min,
 double max)
               throws MathException

Initializing constructor - create a new open interval with specified endpoints.

Parameters:

min - left endpoint

max - right endpoint

Throws:

MathException - max is smaller than min

ClosedInterval

public ClosedInterval(Interval interval)
               throws MathException

Copy constructor - create a new open interval initialized to the argument.

Parameters:

interval - interval to copy

Throws:

MathException - malformed interval to copy

Method Details

membership

public boolean membership(double x)

Is point a member of the open interval

Overrides:

membership in class Interval

Parameters:

x - point to test for membership

Returns:

true if x is in interval

intersect

public boolean intersect(ClosedInterval interval)

Is there a nonzero intersection between this interval and the argument.

Parameters:

interval - interval to be tested

Returns:

true if the intervals intersect

contains

public boolean contains(ClosedInterval interval)

Is the given interval a subset of this interval.

Parameters:

interval - interval under test

Returns:

true if I⊂this, false otherwise.

Since:

Apr 27, 2011

equals

public boolean equals(Object obj)

Are intervals equal

Overrides:

equals in class Interval

Parameters:

I - interval object to be checked for equality

Returns:

true if both objects are equal as intervals

hashCode

public int hashCode()

Overrides:

hashCode in class Interval

toString

public String toString()

Return the contents of the interval as a String. return string representation of interval

Overrides:

toString in class Interval

See Also:

• Object.toString()