cse1030.drawing

Class IPoint2D

java.lang.Object

cse1030.drawing.IPoint2D

public final class IPoint2D
extends Object

An immutable class that represents points on the real 2D plane. An IPoint2D as an x and a y coordinate.

Author:

CSE1030_F13_14

Constructor Summary

Constructors

Constructor and Description
IPoint2D() Constructs a point with coordinates (0.0, 0.0).
IPoint2D(double x, double y) Constructs a point with coordinates (x, y).

Method Summary

Methods

Modifier and Type	Method and Description
double	distanceTo(IPoint2D other) Returns the distance between this point and another point.
boolean	equals(Object obj) Compares this point to another object.
double	getX() Returns the x coordinate of this point.
double	getY() Returns the y coordinate of this point.
String	toString() Returns a string containing the coordinates of the point separated by a space and a comma and inside round brackets.

Methods inherited from class java.lang.Object

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

Constructor Detail

IPoint2D

public IPoint2D()

Constructs a point with coordinates (0.0, 0.0).

IPoint2D

public IPoint2D(double x,
        double y)

Constructs a point with coordinates (x, y).

Parameters:

x - the x coordinate

y - the y coordinate

Method Detail

getX

public double getX()

Returns the x coordinate of this point.

Returns:

the x coordinate of this point

getY

public double getY()

Returns the y coordinate of this point.

Returns:

the y coordinate of this point

distanceTo

public double distanceTo(IPoint2D other)

Returns the distance between this point and another point.

Parameters:

other - the point to compute the distance to

Returns:

the distance between this point and other

equals

public boolean equals(Object obj)

Compares this point to another object. The result is true if and only if the argument is not null and is an IPoint2 object that has the same coordinates of this object.

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

Parameters:

obj - the other object to compare

Returns:

true if obj is an IPoint2 object with the same coordinates as this object

toString

public String toString()

Returns a string containing the coordinates of the point separated by a space and a comma and inside round brackets. No special formatting is applied to the coordinates. For example: (new IPoint2(-1.5, 3.1415)).toString() returns the string "(-1.5, 3.1415)".

Overrides:

toString in class Object

See Also:

Object.toString()

Returns:

a string representation of the point