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Class java.awt.Point
java.lang.Object
|
+----java.awt.geom.Point2D
|
+----java.awt.Point
- public class Point
- extends Point2D
- implements Serializable
A point representing a location in (x, y) coordinate space, specified
in integer precision.
- Since:
- JDK1.0
x- The x coordinate.
y- The y coordinate.
Point()
- Constructs and initializes a point at the origin
(0, 0) of the coordinate space.
Point(int, int)
- Constructs and initializes a point at the specified
(x, y) location in the coordinate space.
Point(Point)
- Constructs and initializes a point with the same location as
the specified
Point
object.
equals(Object)
- Determines whether two points are equal.
getLocation()
- Returns the location of this point.
getX()
- Returns the X coordinate of the point in double precision.
getY()
- Returns the Y coordinate of the point in double precision.
hashCode()
- Returns the hashcode for this point.
move(int, int)
- Moves this point to the specificed location in the
(x, y) coordinate plane.
setLocation(double, double)
- Sets the location of this point to the specified float coordinates.
setLocation(int, int)
- Changes the point to have the specificed location.
setLocation(Point)
- Sets the location of the point to the specificed location.
toString()
- Returns a representation of this point and its location
in the (x, y) coordinate space as a string.
translate(int, int)
- 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
).
x
public int x
- The x coordinate.
y
public int y
- The y coordinate.
Point
public Point()
- Constructs and initializes a point at the origin
(0, 0) of the coordinate space.
- Parameters:
- x - the x coordinate.
- y - the y coordinate.
Point
public Point(Point p)
- Constructs and initializes a point with the same location as
the specified
Point
object.
- Parameters:
- p - a point.
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.
- y - the y coordinate.
getX
public double getX()
- Returns the X coordinate of the point in double precision.
- Overrides:
- getX in class Point2D
getY
public double getY()
- Returns the Y coordinate of the point in double precision.
- Overrides:
- getY in class Point2D
getLocation
public Point getLocation()
- Returns the location of this point.
This method is included for completeness, to parallel the
getLocation
method of Component
.
- Returns:
- a copy of this point, at the same location.
- See Also:
- getLocation, setLocation, setLocation
setLocation
public void setLocation(Point p)
- Sets the location of the point to the specificed location.
This method is included for completeness, to parallel the
setLocation
method of Component
.
- Parameters:
- p - a point, the new location for this point.
- See Also:
- setLocation, getLocation
setLocation
public void setLocation(int x,
int y)
- Changes the point to have the specificed location.
This method is included for completeness, to parallel the
setLocation
method of Component
.
Its behavior is identical with move(int, int)
.
- Parameters:
- x - the x coordinate of the new location.
- y - the y coordinate of the new location.
- See Also:
- setLocation, getLocation, move
setLocation
public void setLocation(double x,
double y)
- Sets the location of this point to the specified float coordinates.
- Overrides:
- setLocation in class Point2D
move
public void move(int x,
int y)
- Moves this point to the specificed location in the
(x, y) coordinate plane. This method
is identical with
setLocation(int, int)
.
- Parameters:
- x - the x coordinate of the new location.
- y - the y coordinate of the new location.
- See Also:
- setLocation
translate
public void translate(int x,
int y)
- 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
).
- Parameters:
- dx - the distance to move this point
along the x axis.
- dy - the distance to move this point
along the y axis.
hashCode
public int hashCode()
- Returns the hashcode for this point.
- Returns:
- a hash code for this point.
- Overrides:
- hashCode in class Object
equals
public boolean equals(Object obj)
- Determines whether two points are equal. Two instances of
Point
are equal if the values of their
x
and y
member fields, representing
their position in the coordinate space, are the same.
- Parameters:
- obj - an object to be compared with this point.
- Returns:
true
if the object to be compared is
an instance of Point
and has
the same values; false
otherwise.- Overrides:
- equals in class Point2D
toString
public String toString()
- Returns a representation of this point and its location
in the (x, y) coordinate space as a string.
- Returns:
- a string representation of this point,
including the values of its member fields.
- Overrides:
- toString in class Object
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