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JavaTM 2 Platform
Std. Ed. v1.3.1

## java.awt.geom Class Point2D

```java.lang.Object
|
+--java.awt.geom.Point2D
```
All Implemented Interfaces:
Cloneable
Direct Known Subclasses:
Point, Point2D.Double, Point2D.Float

public abstract class Point2D
extends Object
implements Cloneable

The `Point2D` class defines a point representing a location in (x, y) coordinate space.

This class is only the abstract superclass for all objects that store a 2D coordinate. The actual storage representation of the coordinates is left to the subclass.

 Inner Class Summary `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.

 Constructor Summary `protected ` `Point2D()`           This is an abstract class that cannot be instantiated directly.

 Method Summary ` 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`. ` boolean` `equals(Object obj)`           Determines whether or not two points are equal. `abstract  double` `getX()`           Returns the X coordinate of this `Point2D` in `double` precision. `abstract  double` `getY()`           Returns the Y coordinate of this `Point2D` in `double` precision. ` int` `hashCode()`           Returns the hashcode for this `Point2D`. `abstract  void` ```setLocation(double x, double y)```           Sets the location of this `Point2D` to the specified `float` coordinates. ` void` `setLocation(Point2D p)`           Sets the location of this `Point2D` to the same coordinates as the specified `Point2D` object.

 Methods inherited from class java.lang.Object `finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

 Constructor Detail

### Point2D

`protected Point2D()`
This is an abstract class that cannot be instantiated directly. Type-specific implementation subclasses are available for instantiation and provide a number of formats for storing the information necessary to satisfy the various accessor methods below.
`Point2D.Float`, `Point2D.Double`, `Point`
 Method Detail

### getX

`public abstract double getX()`
Returns the X coordinate of this `Point2D` in `double` precision.
Returns:
the X coordinate of this `Point2D`.
Since:
1.2

### getY

`public abstract double getY()`
Returns the Y coordinate of this `Point2D` in `double` precision.
Returns:
the Y coordinate of this `Point2D`.
Since:
1.2

### setLocation

```public abstract void setLocation(double x,
double y)```
Sets the location of this `Point2D` to the specified `float` coordinates.
Parameters:
`x, y` - the coordinates of this `Point2D`
Since:
1.2

### setLocation

`public void setLocation(Point2D p)`
Sets the location of this `Point2D` to the same coordinates as the specified `Point2D` object.
Parameters:
`p` - the specified `Point2D` the which to set this `Point2D`
Since:
1.2

### distanceSq

```public static double distanceSq(double X1,
double Y1,
double X2,
double Y2)```
Returns the square of the distance between two points.
Parameters:
`X1, Y1` - the coordinates of the first point
`X2, Y2` - the coordinates of the second point
Returns:
the square of the distance between the two sets of specified coordinates.

### distance

```public static double distance(double X1,
double Y1,
double X2,
double Y2)```
Returns the distance between two points.
Parameters:
`X1, Y1` - the coordinates of the first point
`X2, Y2` - the coordinates of the second point
Returns:
the distance between the two sets of specified coordinates.

### distanceSq

```public double distanceSq(double PX,
double PY)```
Returns the square of the distance from this `Point2D` to a specified point.
Parameters:
`PX, PY` - the coordinates of the other point
Returns:
the square of the distance between this `Point2D` and the specified point.

### distanceSq

`public double distanceSq(Point2D pt)`
Returns the square of the distance from this `Point2D` to a specified `Point2D`.
Parameters:
`pt` - the specified `Point2D`
Returns:
the square of the distance between this `Point2D` to a specified `Point2D`.

### distance

```public double distance(double PX,
double PY)```
Returns the distance from this `Point2D` to a specified point.
Parameters:
`PX, PY` - the coordinates of the specified `Point2D`
Returns:
the distance between this `Point2D` and a specified point.

### distance

`public double distance(Point2D pt)`
Returns the distance from this `Point2D` to a specified `Point2D`.
Parameters:
`pt` - the specified `Point2D`
Returns:
the distance between this `Point2D` and the specified `Point2D`.

### clone

`public Object clone()`
Creates a new object of the same class and with the same contents as this object.
Overrides:
`clone` in class `Object`
Returns:
a clone of this instance.
Throws:
`OutOfMemoryError` - if there is not enough memory.
Since:
1.2
`Cloneable`

### hashCode

`public int hashCode()`
Returns the hashcode for this `Point2D`.
Overrides:
`hashCode` in class `Object`
Returns:
a hash code for this `Point2D`.

### 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 `Object`
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.
Since:
1.2

JavaTM 2 Platform
Std. Ed. v1.3.1

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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