GNU Classpath (0.99.1-pre) | |

Prev Class | Next Class | Frames | No Frames |

Summary: Nested | Field | Method | Constr | Detail: Nested | Field | Method | Constr |

`java.lang.Object`

`java.awt.geom.Point2D`

`java.awt.Point`

**Implemented Interfaces:**- Cloneable, Serializable

This class represents a point on the screen using cartesian coordinates.
Remember that in screen coordinates, increasing x values go from left to
right, and increasing y values go from top to bottom.

There are some public fields; if you mess with them in an inconsistent manner, it is your own fault when you get invalid results. Also, this class is not threadsafe.

**Since:**- 1.0

**See Also:**- Serialized Form

## Nested Class Summary

### Nested classes/interfaces inherited from class java.awt.geom.Point2D

`Point2D.Double`

,`Point2D.Float`

## Constructor Summary

`Point()`

- Initializes a new instance of
`Point`

representing the coordinates (0, 0).

`Point(int x, int y)`

- Initializes a new instance of
`Point`

with the specified coordinates.

## Method Summary

`boolean`

`Point`

`getLocation()`

- Returns the location of this point.

`double`

`getX()`

- Get the x coordinate.

`double`

`getY()`

- Get the y coordinate.

`void`

`move(int x, int y)`

- Sets this object's coordinates to the specified values.

`void`

`setLocation(double x, double y)`

- Sets this object's coordinates to the specified values.

`void`

`setLocation(int x, int y)`

- Sets this object's coordinates to the specified values.

`void`

`setLocation(Point p)`

- Sets this object's coordinates to match those of the specified point.

`String`

`toString()`

- Returns a string representation of this object.

`void`

`translate(int dx, int dy)`

- Changes the coordinates of this point such that the specified
`dx`

parameter is added to the existing X coordinate and`dy`

is added to the existing Y coordinate.

### Methods inherited from class java.awt.geom.Point2D

`clone`

,`distance`

,`distance`

,`distance`

,`distanceSq`

,`distanceSq`

,`distanceSq`

,`equals`

,`getX`

,`getY`

,`hashCode`

,`setLocation`

,`setLocation`

### Methods inherited from class java.lang.Object

`clone`

,`equals`

,`extends Object> getClass`

,`finalize`

,`hashCode`

,`notify`

,`notifyAll`

,`toString`

,`wait`

,`wait`

,`wait`

public Point()

Initializes a new instance of`Point`

representing the coordinates (0, 0).

Since:- 1.1

public Point(int x, int y)

Initializes a new instance of`Point`

with the specified coordinates.

Parameters:`x`

- the X coordinate`y`

- the Y coordinate

public Point(Point p)

Initializes a new instance of`Point`

with coordinates identical to the coordinates of the specified point.

Parameters:`p`

- the point to copy the coordinates from

Throws:`NullPointerException`

- if p is null

public boolean equals(Object obj)

Tests whether or not this object is equal to the specified object. This will be true if and only if the specified object is an instance of Point2D and has the same X and Y coordinates.

Parameters:`obj`

- the object to test against for equality

Returns:- true if the specified object is equal

public Point getLocation()

Returns the location of this point. A pretty useless method, as this is already a point.

Returns:- a copy of this point

Since:- 1.1

See Also:`setLocation(Point)`

public void move(int x, int y)

Sets this object's coordinates to the specified values. This method is identical to the`setLocation(int, int)`

method.

Parameters:`x`

- the new X coordinate`y`

- the new Y coordinate

public void setLocation(double x, double y)

Sets this object's coordinates to the specified values. This method rounds to the nearest integer coordinates by adding 0.5 and calling`Math.floor(double)`

.

Overrides:- setLocation in interface Point2D

Parameters:`x`

- the new X coordinate`y`

- the new Y coordinate

public void setLocation(int x, int y)

Sets this object's coordinates to the specified values. This method is identical to the`move()`

method.

Parameters:`x`

- the new X coordinate`y`

- the new Y coordinate

public void setLocation(Point p)

Sets this object's coordinates to match those of the specified point.

Parameters:`p`

- the point to copy the coordinates from

Throws:`NullPointerException`

- if p is null

Since:- 1.1

public String toString()

Returns a string representation of this object. The format is:`getClass().getName() + "[x=" + x + ",y=" + y + ']'`

.

Returns:- a string representation of this object

public void translate(int dx, int dy)

Changes the coordinates of this point such that the specified`dx`

parameter is added to the existing X coordinate and`dy`

is added to the existing Y coordinate.

Parameters:`dx`

- the amount to add to the X coordinate`dy`

- the amount to add to the Y coordinate

Point.java -- represents a point in 2-D space
Copyright (C) 1999, 2002, 2006 Free Software Foundation
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
combination.
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
module. An independent module is a module which is not derived from
or based on this library. If you modify this library, you may extend
this exception to your version of the library, but you are not
obligated to do so. If you do not wish to do so, delete this
exception statement from your version.

GNU Classpath (0.99.1-pre) |