Class Point

java.lang.Object

java.awt.geom.Point2D

java.awt.Point

All Implemented Interfaces:: Serializable, Cloneable

public class Point extends Point2D implements Serializable

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

Since:

1.0

See Also:

Nested Class Summary

Nested classes/interfaces declared in class Point2D

Point2D.Double, Point2D.Float

Modifier and Type	Class	Description
`static class`	`Point2D.Double`	The `Double` class defines a point specified in `double` precision.
`static class`	`Point2D.Float`	The `Float` class defines a point specified in float precision.

Field Summary

Modifier and Type	Field	Description
`int`	`x`	The X coordinate of this `Point`.
`int`	`y`	The Y coordinate of this `Point`.

Constructor Summary

Constructor	Description
`Point()`	Constructs and initializes a point at the origin (0, 0) of the coordinate space.
`Point(int x, int y)`	Constructs and initializes a point at the specified `(x,y)` location in the coordinate space.
`Point(Point p)`	Constructs and initializes a point with the same location as the specified `Point` object.

Method Summary

Modifier and Type	Method	Description
`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(double x, double y)`	Sets the location of this point to the specified double coordinates.
`void`	`setLocation(int x, int y)`	Changes the point to have the specified location.
`void`	`setLocation(Point p)`	Sets the location of the point to the specified location.
`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)`.

Methods declared in class Point2D

clone, distance, distance, distance, distanceSq, distanceSq, distanceSq, hashCode, setLocation

Modifier and Type	Method	Description
`Object`	`clone()`	Creates a new object of the same class and with the same contents as this object.
`double`	`distance(double px, double py)`	Returns the distance from this `Point2D` to a specified point.
`static double`	`distance(double x1, double y1, double x2, double y2)`	Returns the distance between two points.
`double`	`distance(Point2D pt)`	Returns the distance from this `Point2D` to a specified `Point2D`.
`double`	`distanceSq(double px, double py)`	Returns the square of the distance from this `Point2D` to a specified point.
`static double`	`distanceSq(double x1, double y1, double x2, double y2)`	Returns the square of the distance between two points.
`double`	`distanceSq(Point2D pt)`	Returns the square of the distance from this `Point2D` to a specified `Point2D`.
`int`	`hashCode()`	Returns the hashcode for this `Point2D`.
`void`	`setLocation(Point2D p)`	Sets the location of this `Point2D` to the same coordinates as the specified `Point2D` object.

Methods declared in class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Modifier and Type	Method	Description
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Field Details

x

public int x

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

Since:

1.0

See Also:

y

public int y

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

Since:

1.0

See Also:

Constructor Details

Point

public Point()

Constructs and initializes a point at the origin (0, 0) of the coordinate space.

Since:: 1.1

Point

public Point(Point p)

Constructs and initializes a point with the same location as the specified Point object.

Parameters:: p - a point
Since:: 1.1

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
Since:: 1.0

Method Details

getX

public double getX()

Returns the X coordinate of this Point2D in double precision.

Specified by:: getX in class Point2D
Returns:: the X coordinate of this Point2D.
Since:: 1.2

getY

public double getY()

Returns the Y coordinate of this Point2D in double precision.

Specified by:: getY in class Point2D
Returns:: the Y coordinate of this Point2D.
Since:: 1.2

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

Since:

1.1

See Also:

setLocation

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

Since:

1.1

See Also:

setLocation

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

Since:

1.1

See Also:

setLocation

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.

Specified by:

setLocation in class Point2D

Parameters:

x - the X coordinate of the new location

y - the Y coordinate of the new location

See Also:

move

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

See Also:

translate

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

equals

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.

Overrides:

equals in class Point2D

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.

See Also:

toString

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.

Overrides:: toString in class Object
Returns:: a string representation of this point

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