[Chapter 18] 18.48 java.awt.Polygon (JDK 1.0)

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| Chapter 18 The java.awt Package |

## 18.48 java.awt.Polygon (JDK 1.0)

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This class defines a polygon as an array of points. The points of the polygon may be specified by the constructor, or with the `addPoint()` method. `getBoundingBox()` returns the smallest `Rectangle` that contains the polygon, and `inside()` tests whether a specified point is within the `Polygon`. Note that the arrays of X and Y points and the number of points in the polygon (not necessarily the same as the array size) are defined as public variables. `Polygon` objects are used when drawing polygons with the `Graphics.drawPolygon()` and `Graphics.fillPolygon()` methods.

    public class Polygon extends Object implements Shape, Serializable {
        // Public Constructors
                public Polygon();
                public Polygon(int[] xpoints, int[] ypoints, int npoints);
        // Public Instance Variables
                public int npoints;
                public int[] xpoints;
                public int[] ypoints;
        // Protected Instance Variables
            1.1  protected Rectangle bounds;
        // Public Instance Methods
                public void addPoint(int x, int y);
            1.1  public boolean contains(Point p);
            1.1  public boolean contains(int x, int y);
            #   public Rectangle getBoundingBox();
            1.1  public Rectangle getBounds();  // From Shape
            #   public boolean inside(int x, int y);
            1.1  public void translate(int deltaX, int deltaY);
    }

### Passed To:

`Graphics.drawPolygon(), Graphics.fillPolygon()`

java.awt.Point (JDK 1.0) |  | java.awt.PopupMenu (JDK 1.1)