Java Graphics How to - Add Round Rectangle, Ellipse Arc to a shape

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Question

We would like to know how to add Round Rectangle, Ellipse Arc to a shape.

Answer

 /*from  w  w  w.  j  ava  2 s  . c o  m*/

import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.geom.Arc2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.util.ArrayList;

import javax.swing.JComponent;
import javax.swing.JFrame;

public class ShapeMaker extends JFrame {
  public static void main(String[] args) {
    new ShapeMaker();
  }

  public ShapeMaker() {
    this.setSize(300, 300);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.add(new PaintSurface(), BorderLayout.CENTER);
    this.setVisible(true);
  }

  private class PaintSurface extends JComponent {
    ArrayList<Shape> shapes = new ArrayList<Shape>();

    Point startDrag, endDrag;

    Shape found = null;

    public PaintSurface() {
      Shape s = new Rectangle2D.Float(10, 10, 60, 80);
      shapes.add(s);

      s = new RoundRectangle2D.Float(110, 10, 80, 80, 10, 10);
      shapes.add(s);

      s = new Ellipse2D.Float(10, 110, 80, 80);
      shapes.add(s);


      s = new Arc2D.Float(10, 210, 80, 80, 90, 90, Arc2D.OPEN);
      shapes.add(s);

      s = new Arc2D.Float(110, 210, 80, 80, 0, 180, Arc2D.CHORD);
      shapes.add(s);

      s = new Arc2D.Float(210, 210, 80, 80, 45, 90, Arc2D.PIE);
      shapes.add(s);
    }

    public void paint(Graphics g) {
      Graphics2D g2 = (Graphics2D) g;
      g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

      RenderingHints.VALUE_ANTIALIAS_ON);

      g2.setPaint(Color.LIGHT_GRAY);
      for (int i = 0; i < getSize().width; i += 10)
        g2.draw(new Line2D.Float(i, 0, i, getSize().height));
      for (int i = 0; i < getSize().height; i += 10)
        g2.draw(new Line2D.Float(0, i, getSize().width, i));

      g2.setColor(Color.BLACK);
      g2.setStroke(new BasicStroke(2));
      for (Shape s : shapes)
        g2.draw(s);
    }
  }
}

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