java.awt
Class Point
java.lang.Object
|
+--java.awt.geom.Point2D
|
+--java.awt.Point
- All Implemented Interfaces:
- Cloneable, Serializable
- public class Point
- extends java.awt.geom.Point2D
- implements Serializable
Safe:
- See Also:
- Serialized Form
Field Summary
int
x
Suppressed: The
x coordinate.
int
y
Suppressed: The
y coordinate.
Constructor Summary
Point()
Enabled: Constructs and initializes a point at the origin
(0, 0) of the coordinate space.
Point(int x,
int y)
Enabled: Constructs and initializes a point at the specified
(
x,
y) location in the coordinate space.
Point(Point p)
Enabled: Constructs and initializes a point with the same location as
the specified
Point object.
Method Summary
boolean
equals(Object obj)
Suppressed: Determines whether an instance of
Point2D is equal
to this point.
double
getX()
Enabled: Returns the X coordinate of the point in double precision.
double
getY()
Enabled: Returns the Y coordinate of the point in double precision.
void
move(int x,
int y)
Enabled: Moves this point to the specified location in the
(
x,
y) coordinate plane.
void
setLocation(double x,
double y)
Enabled: Sets the location of this point to the specified double coordinates.
void
setLocation(int x,
int y)
Enabled: Changes the point to have the specified location.
void
setLocation(Point p)
Enabled: Sets the location of the point to the specified location.
String
toString()
Suppressed: Returns a string representation of this point and its location
in the (
x,
y) coordinate space.
void
translate(int dx,
int dy)
Enabled: 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).
Methods inherited from class java.lang.Object
Field Detail
x
public int x
- Suppressed: The x coordinate.
If no x coordinate is set it will default to 0.
- See Also:
getLocation(),
move(int, int)
y
public int y
- Suppressed: The y coordinate.
If no y coordinate is set it will default to 0.
- See Also:
getLocation(),
move(int, int)
serialVersionUID
private static final long serialVersionUID
Constructor Detail
Point
public Point()
- Enabled: Constructs and initializes a point at the origin
(0, 0) of the coordinate space.
- Since:
- JDK1.1
Point
public Point(Point p)
- Enabled: Constructs and initializes a point with the same location as
the specified
Point object.
- Parameters:
p - a point- Since:
- JDK1.1
Point
public Point(int x,
int y)
- Enabled: Constructs and initializes a point at the specified
(x, y) location in the coordinate space.
- Parameters:
x - the x coordinatey - the y coordinate
Method Detail
getX
public double getX()
- Enabled: Returns the X coordinate of the point in double precision.
- Overrides:
getX in class java.awt.geom.Point2D
- Returns:
- the X coordinate of the point in double precision
getY
public double getY()
- Enabled: Returns the Y coordinate of the point in double precision.
- Overrides:
getY in class java.awt.geom.Point2D
- Returns:
- the Y coordinate of the point in double precision
getLocation
public Point getLocation()
- Enabled: 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
- Since:
- JDK1.1
- See Also:
java.awt.Component#getLocation,
java.awt.Point#setLocation(java.awt.Point),
java.awt.Point#setLocation(int, int)
setLocation
public void setLocation(Point p)
- Enabled: Sets the location of the point to the specified location.
This method is included for completeness, to parallel the
setLocation method of Component.
-
- Parameters:
p - a point, the new location for this point- Since:
- JDK1.1
- See Also:
java.awt.Component#setLocation(java.awt.Point),
java.awt.Point#getLocation
setLocation
public void setLocation(int x,
int y)
- Enabled: 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).
-
- Parameters:
x - the x coordinate of the new locationy - the y coordinate of the new location- Since:
- JDK1.1
- See Also:
java.awt.Component#setLocation(int, int),
java.awt.Point#getLocation,
java.awt.Point#move(int, int)
setLocation
public void setLocation(double x,
double y)
- Enabled: 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.
- Overrides:
setLocation in class java.awt.geom.Point2D
- 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)
- Enabled: Moves this point to the specified location in the
(x, y) coordinate plane. This method
is identical with
setLocation(int, int).
-
- Parameters:
x - the x coordinate of the new locationy - the y coordinate of the new location- See Also:
java.awt.Component#setLocation(int, int)
translate
public void translate(int dx,
int dy)
- Enabled: 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 axisdy - the distance to move this point
along the y axis
equals
public boolean equals(Object obj)
- Suppressed: Determines whether an instance of
Point2D is equal
to this point. 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.
- Overrides:
equals in class java.awt.geom.Point2D
- 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- See Also:
Object.hashCode(),
java.util.Hashtable
toString
public String toString()
- Suppressed: 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.
- Overrides:
toString in class Object
- Returns:
- a string representation of this point