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Class java.awt.Polygon 

java.lang.Object
   |
   +----java.awt.Polygon
public class Polygon
extends Object
implements Shape, Serializable
A polygon consists of a list of x and y coordinates.

Variable Index

o bounds
o npoints
The total number of points.
o xpoints
The array of x coordinates.
o ypoints
The array of y coordinates.

Constructor Index

o Polygon()
Creates an empty polygon.
o Polygon(int[], int[], int)
Constructs and initializes a Polygon from the specified parameters.

Method Index

o addPoint(int, int)
Appends a point to a polygon.
o contains(int, int)
Determines whether the point (x,y) is inside the Polygon.
o contains(Point)
Determines whether the specified point is inside the Polygon.
o getBoundingBox()
Deprecated.
o getBounds()
Returns the bounding box of the shape.
o inside(int, int)
Deprecated.
o translate(int, int)
Translates the vertices by deltaX, deltaY.

Variables

o npoints 
 public int npoints
The total number of points.

o xpoints 
 public int xpoints[]
The array of x coordinates.

o ypoints 
 public int ypoints[]
The array of y coordinates.

o bounds 
 protected Rectangle bounds

Constructors

o Polygon 
 public Polygon()
Creates an empty polygon.

o Polygon 
 public Polygon(int xpoints[],
                int ypoints[],
                int npoints)
Constructs and initializes a Polygon from the specified parameters.

Parameters:
xpoints - the array of x coordinates
ypoints - the array of y coordinates
npoints - the total number of points in the Polygon

Methods

o translate 
 public void translate(int deltaX,
                       int deltaY)
Translates the vertices by deltaX, deltaY.

Parameters:
deltaX - the amount to move the X coords
deltaY - the amount to move the Y coords
o addPoint 
 public void addPoint(int x,
                      int y)
Appends a point to a polygon. If inside(x, y) or another operation that calculates the bounding box has already been performed, this method updates the bounds accordingly.

Parameters:
x - the x coordinate of the point
y - the y coordinate of the point
o getBounds 
 public Rectangle getBounds()
Returns the bounding box of the shape.

Returns:
a Rectangle defining the bounds of the Polygon.
o getBoundingBox 
 public Rectangle getBoundingBox()
Note: getBoundingBox() is deprecated. As of JDK version 1.1, replaced by getBounds().

o contains 
 public boolean contains(Point p)
Determines whether the specified point is inside the Polygon. Uses an even-odd insideness rule (also known as an alternating rule).

Parameters:
p - the point to be tested
o contains 
 public boolean contains(int x,
                         int y)
Determines whether the point (x,y) is inside the Polygon. Uses an even-odd insideness rule (also known as an alternating rule).

Parameters:
x - the X coordinate of the point to be tested
y - the Y coordinate of the point to be tested

Kindly donated by Hanpeter van Vliet .

o inside 
 public boolean inside(int x,
                       int y)
Note: inside() is deprecated. As of JDK version 1.1, replaced by contains(int, int). 

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