Drawing arcs and lines

Hi! I am having problem in drawing arc and line. We have function
Graphics.drawArc(int x, int y, int startAngle, int endAngle)
I need to get the last point where the arc ends. Because I want to draw a line touching the last point of this arc. I request you to provide me some solution.
BR
Omer Amin

Graphics.drawArc requires 6 parameters (not 4). Pass all 6 parameters to the Arc2D.Double() constructor and call it's getEndPoint() method.

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How do I join together arcs and lines in a single Shape???

I am out of my depth, I am probably missing something spectacular .... I need to construct a shape from arcs and lines to get something like this, only closed:
Like a winding river sort of thing... I do not need to draw this I need to have this shape and its area available to me.... How do I join these two arcs and two lines into a shape from which I can find - area.contains(xy.getX(), xy.getY()); , preatty please?
here is the code that causes numerous errors:
import java.awt.*;
import java.awt.Graphics.*;
import java.awt.Graphics2D.*;
import java.awt.geom.RectangularShape.*;
import java.awt.geom.Arc2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Area;
import java.awt.geom.GeneralPath;
class MyShapes //extends Arc2D
public static Arc2D outerOne;
public static Arc2D innerOne;
public static Line2D upLine, bottomLine;
public static Area area = new Area();
public MyShapes(double[] upper, double [] lower)
outerOne.setArc(upper[0], upper[1], upper[2], upper[3], upper[4], upper[5], (int)upper[6]);
//                         x,          y,               w,          h,               OA,      AA, int OPEN =1
innerOne.setArc(lower[0], lower[1], lower[2], lower[3], lower[4], lower[5], (int)lower[6]);
//outerTR=this.makeClosedShape(outerTopRightArc,middleTopRightArc);
upLine     = new Line2D.Double(outerOne.getX(),outerOne.getY(),innerOne.getX(),innerOne.getY());
bottomLine = new Line2D.Double(outerOne.getX()+outerOne.getWidth(),outerOne.getY()+outerOne.getHeight(),innerOne.getX()+innerOne.getWidth(),innerOne.getY()+innerOne.getHeight());
area = this.joinAll(outerOne,innerOne, upLine, bottomLine);
private Area joinAll(Arc2D out, Arc2D in, Line2D one, Line2D two)
GeneralPath joiner = new GeneralPath(out);
joiner.append(in, true);
joiner.append(one, true);
joiner.append(two, true);
Area temp = new Area(joiner);
return temp;
public boolean isInArea(Point xy)
return area.contains(xy.getX(), xy.getY());
public boolean isItClosed()
return area.isSingular();
Thanks

Glad to hear you find what was wrong. Still, it doesn't the main problem : why is that method crashing?
Here is what I've done in the mean time. See if it fits your purpose.import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.*;
public class MyShapes {
     private Arc2D outerOne;
     private Arc2D innerOne;
     private Shape line1;
     private Shape line2;
     public MyShapes(double[] upper, double[] lower) {
          outerOne = new Arc2D.Double(upper[0],
                                             upper[1],
                                             upper[2],
                                             upper[3],
                                             upper[4],
                                             upper[5],
                                             0);
          innerOne = new Arc2D.Double(lower[0],
                                             lower[1],
                                             lower[2],
                                             lower[3],
                                             lower[4],
                                             lower[5],
                                             0);
          line1 = new Line2D.Double(outerOne.getStartPoint().getX(),
                                          outerOne.getStartPoint().getY(),
                                          innerOne.getStartPoint().getX(),
                                          innerOne.getStartPoint().getY());
          line2 = new Line2D.Double(outerOne.getEndPoint().getX(),
                                          outerOne.getEndPoint().getY(),
                                          innerOne.getEndPoint().getX(),
                                          innerOne.getEndPoint().getY());
     public void paint(Graphics2D aGraphics2D) {
          aGraphics2D.draw(outerOne);
          aGraphics2D.draw(innerOne);
          aGraphics2D.draw(line1);
          aGraphics2D.draw(line2);
     public static void main(String[] args) {
          double [] XO= {56, 58, 400, 280, 90, 90};// outter arc
          double [] XI={114, 105, 300, 200, 90, 90}; // inner arc
          final MyShapes myShapes = new MyShapes(XO, XI);
          JPanel panel = new JPanel() {
               protected void paintComponent(Graphics g) {
                    super.paintComponent(g);
                    Graphics2D g2 = (Graphics2D)g;
                    myShapes.paint(g2);
          final JFrame frame = new JFrame("Test shape");
          frame.addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(0);
          frame.setContentPane(panel);
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    frame.show();
}

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b
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b
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So, my problem is, I need a function that takes a string with tree structure, as in automata or tree graph, and displays the nodes in tree form. "Tree" is not important, but important is that each object should be displayed as a node and lines connecting them. Please see the image below (with three possible options):
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Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

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Draw arcs
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You're welcome.
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swins,
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TJ G

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import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
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