Point2D class in java
java.awt.geom.Point2D is a class in java programming language. Inside of this class exists 13 public methods. Declaration of this class as follows.
public abstract class java.awt.geom.Point2D
implements java.lang.CloneablePoint2D public method
There are following useful methods which is define the inside of java.awt.geom.Point2D class.
| Method | Description |
|---|---|
| Object clone() | It creates a new object of the same class and with the same contents as this object. |
| double distance(double px, double py) | It returns the distance from this to a specified point. |
| static double distance(double x1, double y1, double x2, double y2) | It returns the distance between two points. |
| double distance(Point2D pt) | It returns the distance from this to a specified Point2D. |
| double distanceSq(double px, double py) | It returns the square of the distance from this to a specified point. |
| static double distanceSq(double x1, double y1, double x2, double y2) | It returns the square of the distance between two points. |
| double distanceSq(Point2D pt) | It returns the square of the distance from this to a specified Point2D. |
| boolean equals(Object obj) | It determines whether or not two points are equal. |
| abstract double getX() | It returns the X coordinate of this in double precision. |
| abstract double getY() | It returns the Y coordinate of this in double precision. |
| int hashCode() | It returns the hashcode for this Point2D. |
| abstract void setLocation(double x, double y) | It sets the location of this to the specified double coordinates. |
| void setLocation(Point2D p) | It sets the location of this to the same coordinates as the specified Point2D object. |
This reference is belong to javadoc
Point2D is abstract class, Variable of this class capable to hold the reference of subclass (Point, Point2D.Double, Point2D.Float). For example.
java.awt.Point Example
import java.awt.geom.Point2D;
import java.awt.Point;
public class Example
{
public static void main(String[] argv)
{
// Create an instance
Point2D point = new Point(50, 60);
System.out.println(point);
}
}
java.awt.Point[x=50,y=60]java.awt.geom.Point2D.Float Example
import java.awt.geom.Point2D;
public class Example
{
public static void main(String[] argv)
{
// Create an instance using Point2D.Float
Point2D point = new Point2D.Float(15.3f, 40.4f);
System.out.println(point);
}
}
Point2D.Float[15.3, 40.4]java.awt.geom.Point2D.Double Example
import java.awt.geom.Point2D;
public class Example
{
public static void main(String[] argv)
{
// Create an instance using Point2D.Double
Point2D point = new Point2D.Double(50.20, 60.55);
System.out.println(point);
}
}
Point2D.Double[50.2, 60.55]java.awt.geom.Point2D clone() method example
// clone() method in java.awt.geom.Point2D class
// Useful packages
import java.awt.geom.Point2D;
class Example {
public static void main(String[] args) {
// Create Instance
Point2D.Double p1 = new Point2D.Double(30.20, 50.35);
Object p2 = p1.clone();
// After clone Display result
System.out.println(p1);
System.out.println(p2);
// Change value
p1.x = 999.20;
// After update Display result
System.out.println(p1);
System.out.println(p2);
}
}
Point2D.Double[30.2, 50.35]
Point2D.Double[30.2, 50.35]
Point2D.Double[999.2, 50.35]
Point2D.Double[30.2, 50.35]
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