public class Point extends Point2D implements Serializable
A point representing a location in (x,y)
coordinate space, specified in integer precision.
Point2D.Double, Point2D.Float
public int x
The X coordinate of this Point
. If no X coordinate is set it will default to 0.
getLocation()
, move(int, int)
public int y
The Y coordinate of this Point
. If no Y coordinate is set it will default to 0.
getLocation()
, move(int, int)
public Point()
Constructs and initializes a point at the origin (0, 0) of the coordinate space.
public Point(Point p)
Constructs and initializes a point with the same location as the specified Point
object.
p
- a pointpublic Point(int x, int y)
Constructs and initializes a point at the specified (x,y)
location in the coordinate space.
x
- the X coordinate of the newly constructed Point
y
- the Y coordinate of the newly constructed Point
public double getX()
Returns the X coordinate of this Point2D
in double
precision.
public double getY()
Returns the Y coordinate of this Point2D
in double
precision.
public Point getLocation()
Returns the location of this point. This method is included for completeness, to parallel the getLocation
method of Component
.
Component.getLocation()
, setLocation(java.awt.Point)
, setLocation(int, int)
public void setLocation(Point p)
Sets the location of the point to the specified location. This method is included for completeness, to parallel the setLocation
method of Component
.
p
- a point, the new location for this pointComponent.setLocation(java.awt.Point)
, getLocation()
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 of Component
. Its behavior is identical with move(int, int)
.
x
- the X coordinate of the new locationy
- the Y coordinate of the new locationComponent.setLocation(int, int)
, getLocation()
, move(int, int)
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 than Integer.MIN_VALUE
will be reset to MIN_VALUE
, and any number larger than Integer.MAX_VALUE
will be reset to MAX_VALUE
.
setLocation
in class Point2D
x
- the X coordinate of the new locationy
- the Y coordinate of the new locationgetLocation()
public void move(int x, int y)
Moves this point to the specified location in the (x,y)
coordinate plane. This method is identical with setLocation(int, int)
.
x
- the X coordinate of the new locationy
- the Y coordinate of the new locationComponent.setLocation(int, int)
public void translate(int dx, int dy)
Translates this point, at location (x,y)
, by dx
along the x
axis and dy
along the y
axis so that it now represents the point (x+dx,y+dy)
.
dx
- the distance to move this point along the X axisdy
- the distance to move this point along the Y axispublic boolean equals(Object obj)
Determines whether or not two points are equal. Two instances of Point2D
are equal if the values of their x
and y
member fields, representing their position in the coordinate space, are the same.
equals
in class Point2D
obj
- an object to be compared with this Point2D
true
if the object to be compared is an instance of Point2D
and has the same values; false
otherwise.Object.hashCode()
, HashMap
public String 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 be null
.
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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