public class

Point

extends Point2D
implements Serializable
java.lang.Object
   ↳ java.awt.geom.Point2D
     ↳ java.awt.Point

Class Overview

A point representing a location in (x,y) coordinate space, specified in integer precision.

Summary

Fields
public int x The X coordinate of this Point.
public int y The Y coordinate of this Point.
Public Constructors
Point()
Constructs and initializes a point at the origin (0, 0) of the coordinate space.
Point(Point p)
Constructs and initializes a point with the same location as the specified Point object.
Point(int x, int y)
Constructs and initializes a point at the specified (x,y) location in the coordinate space.
Public Methods
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 this Point2D in double precision.
double getY()
Returns the Y coordinate of this Point2D in double precision.
void move(int x, int y)
Moves this point to the specified location in the (x,y) coordinate plane.
void setLocation(Point p)
Sets the location of the point to the specified location.
void setLocation(int x, int y)
Changes the point to have the specified location.
void setLocation(double x, double y)
Sets the location of this point to the specified double coordinates.
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), by dx along the x axis and dy along the y axis so that it now represents the point (x+dx,y+dy).
[Expand]
Inherited Methods
From class java.awt.geom.Point2D
From class java.lang.Object

Fields

public int x

The X coordinate of this Point. If no X coordinate is set it will default to 0.@serial

public int y

The Y coordinate of this Point. If no Y coordinate is set it will default to 0.@serial

Public Constructors

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.

Parameters
p a 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 constructed Point
y the Y coordinate of the newly constructed Point

Public Methods

public 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.

Parameters
obj an object to be compared with this Point2D
Returns
  • true if the object to be compared is an instance of Point2D and has the same values; false otherwise.

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

public double getX ()

Returns the X coordinate of this Point2D in double precision.

Returns
  • the X coordinate of this Point2D.

public double getY ()

Returns the Y coordinate of this Point2D in double precision.

Returns
  • the Y coordinate of this Point2D.

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).

Parameters
x the X coordinate of the new location
y the Y coordinate of the new location

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.

Parameters
p a point, the new location for this point

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).

Parameters
x the X coordinate of the new location
y the Y coordinate of the new location

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.

Parameters
x the X coordinate of the new location
y the Y coordinate of the new location
See Also

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.

Returns
  • a string representation of this point

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).

Parameters
dx the distance to move this point along the X axis
dy the distance to move this point along the Y axis