java.lang.Object
java.awt.geom.Point2D
java.awt.Point
 All Implemented Interfaces:
Serializable
,Cloneable
public class Point extends Point2D implements Serializable
A point representing a location in
(x,y)
coordinate space,
specified in integer precision. Since:
 1.0
 See Also:
 Serialized Form

Nested Class Summary

Field Summary

Constructor Summary
Constructors Constructor Description Point()
Constructs and initializes a point at the origin (0, 0) of the coordinate space.Point(int x, int y)
Constructs and initializes a point at the specified(x,y)
location in the coordinate space.Point(Point p)
Constructs and initializes a point with the same location as the specifiedPoint
object. 
Method Summary
Modifier and Type Method Description boolean
equals(Object obj)
Determines whether or not two points are equal.Point
getLocation()
Returns the location of this point.double
getX()
Returns the X coordinate of thisPoint2D
indouble
precision.double
getY()
Returns the Y coordinate of thisPoint2D
indouble
precision.void
move(int x, int y)
Moves this point to the specified location in the(x,y)
coordinate plane.void
setLocation(double x, double y)
Sets the location of this point to the specified double coordinates.void
setLocation(int x, int y)
Changes the point to have the specified location.void
setLocation(Point p)
Sets the location of the point to the specified location.String
toString()
Returns a string representation of this point and its location in the(x,y)
coordinate space.void
translate(int dx, int dy)
Translates this point, at location(x,y)
, bydx
along thex
axis anddy
along they
axis so that it now represents the point(x+dx,y+dy)
.Methods declared in class java.awt.geom.Point2D
clone, distance, distance, distance, distanceSq, distanceSq, distanceSq, hashCode, setLocation

Field Details

x
public int xThe X coordinate of thisPoint
. If no X coordinate is set it will default to 0. Since:
 1.0
 See Also:
getLocation()
,move(int, int)

y
public int yThe Y coordinate of thisPoint
. If no Y coordinate is set it will default to 0. Since:
 1.0
 See Also:
getLocation()
,move(int, int)


Constructor Details

Point
public Point()Constructs and initializes a point at the origin (0, 0) of the coordinate space. Since:
 1.1

Point
Constructs and initializes a point with the same location as the specifiedPoint
object. Parameters:
p
 a point Since:
 1.1

Point
public Point(int x, int y)Constructs and initializes a point at the specified(x,y)
location in the coordinate space. Parameters:
x
 the X coordinate of the newly constructedPoint
y
 the Y coordinate of the newly constructedPoint
 Since:
 1.0


Method Details

getX
public double getX()Returns the X coordinate of thisPoint2D
indouble
precision. 
getY
public double getY()Returns the Y coordinate of thisPoint2D
indouble
precision. 
getLocation
Returns the location of this point. This method is included for completeness, to parallel thegetLocation
method ofComponent
. Returns:
 a copy of this point, at the same location
 Since:
 1.1
 See Also:
Component.getLocation()
,setLocation(java.awt.Point)
,setLocation(int, int)

setLocation
Sets the location of the point to the specified location. This method is included for completeness, to parallel thesetLocation
method ofComponent
. Parameters:
p
 a point, the new location for this point Since:
 1.1
 See Also:
Component.setLocation(java.awt.Point)
,getLocation()

setLocation
public void setLocation(int x, int y)Changes the point to have the specified location.This method is included for completeness, to parallel the
setLocation
method ofComponent
. Its behavior is identical withmove(int, int)
. Parameters:
x
 the X coordinate of the new locationy
 the Y coordinate of the new location Since:
 1.1
 See Also:
Component.setLocation(int, int)
,getLocation()
,move(int, int)

setLocation
public void setLocation(double x, double y)Sets the location of this point to the specified double coordinates. The double values will be rounded to integer values. Any number smaller thanInteger.MIN_VALUE
will be reset toMIN_VALUE
, and any number larger thanInteger.MAX_VALUE
will be reset toMAX_VALUE
. Specified by:
setLocation
in classPoint2D
 Parameters:
x
 the X coordinate of the new locationy
 the Y coordinate of the new location See Also:
getLocation()

move
public void move(int x, int y)Moves this point to the specified location in the(x,y)
coordinate plane. This method is identical withsetLocation(int, int)
. Parameters:
x
 the X coordinate of the new locationy
 the Y coordinate of the new location See Also:
Component.setLocation(int, int)

translate
public void translate(int dx, int dy)Translates this point, at location(x,y)
, bydx
along thex
axis anddy
along they
axis so that it now represents the point(x+dx,y+dy)
. Parameters:
dx
 the distance to move this point along the X axisdy
 the distance to move this point along the Y axis

equals
Determines whether or not two points are equal. Two instances ofPoint2D
are equal if the values of theirx
andy
member fields, representing their position in the coordinate space, are the same. Overrides:
equals
in classPoint2D
 Parameters:
obj
 an object to be compared with thisPoint2D
 Returns:
true
if the object to be compared is an instance ofPoint2D
and has the same values;false
otherwise. See Also:
Object.hashCode()
,HashMap

toString
Returns a string representation of this point and its location in the(x,y)
coordinate space. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull
.
