Problem drawing circles and ellipses

Question

I want my program to draw an ellipse and circle. As we all know, theyre different.
I used the drawOval() method in java.awt.Graphics to do this.
Here is the crucial lines of the code:
public void paintComponent(Graphics g)
          super.paintComponent(g);
          if(currentShape!=null)
               if (currentShape.shapeType()==RECTANGLE)
                    g.drawRect(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getWidth());
               else if (currentShape.shapeType()==ELLIPSE)
                    g.drawOval(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getWidth());
               else if (currentShape.shapeType()==CIRCLE)
                    g.drawOval(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getLength());
          if (shapeCount>0)
               for (int c=0;c<shapeCount;c++)
                    if (myShapes[c].shapeType()==RECTANGLE)
                         g.drawRect(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getWidth());     
                    else if (myShapes[c].shapeType()==ELLIPSE)
                         g.drawOval(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getWidth());     
                    else if (myShapes[c].shapeType()==CIRCLE)
                         g.drawOval(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getLength());     
     }I am bemused because, it doesn't work. When I try to draw the circle, it doesn't draw a circle but an ellipse but as you can see I set the length and height parameters of the cricle to the length!
here are my other codes, see for yourself.
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JCheckBox;
import javax.swing.JPanel;
import javax.swing.JLabel;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class DrawFrame extends JFrame
     JButton undo, clear;
     JComboBox colors, shapes;
     JCheckBox isFilled;
     JPanel top,bottom;
     JLabel statusBar;
     DrawPanel canvas;
     String shapeList[] = {"Rectangle","Ellipse","Circle","Triangle"};
     String colorList[] = {"Red","Orange","Yellow","Green","Blue","Violet"};
     public DrawFrame()
          super("Java Drawings");
          setLayout(new BorderLayout());
          top = new JPanel();
          top.setLayout(new FlowLayout());
          undo = new JButton("Undo");
          clear = new JButton("Clear");
          shapes = new JComboBox(shapeList);
          colors = new JComboBox(colorList);
          isFilled = new JCheckBox("Filled",true);     
          top.add(undo);
          top.add(clear);
          top.add(shapes);
          top.add(colors);
          top.add(isFilled);
          add(top,BorderLayout.NORTH);
          statusBar = new JLabel("Program Started");
          canvas = new DrawPanel(statusBar);
          add(canvas,BorderLayout.CENTER);
          bottom = new JPanel();
          statusBar = canvas.getStatusLabel();
          bottom.setLayout(new FlowLayout(FlowLayout.LEFT));
          bottom.add(statusBar);
          add(bottom,BorderLayout.SOUTH);
          //default settings
          canvas.setShapeType(0);
          eventHandler handler = new eventHandler();
          shapes.addActionListener(handler);
     private class eventHandler implements ActionListener
          public void actionPerformed(ActionEvent e)
               if(e.getSource()==shapes)
                    canvas.setShapeType(shapes.getSelectedIndex());
                    //System.out.println("Selected Index"+shapes.getSelectedIndex());
     public static void main(String args[])
          DrawFrame app = new DrawFrame();
          app.setSize(500,300);
          app.setVisible(true);
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseListener;
public class DrawPanel extends JPanel
     private int shapeCount;
     private int shapeType;
     private int currentColor;
     private boolean filledShape;
     public JLabel statusLabel;
     private Shape myShapes[]=new Shape[100];
     private Shape currentShape;
     private final int RECTANGLE=0,ELLIPSE=1,CIRCLE=2,TRIANGLE=3;
     private boolean draw=false;
     public DrawPanel(JLabel statusBar)
          shapeCount=0;
          statusLabel = statusBar;
          mausHandler mouseEventsHandler = new mausHandler();
          addMouseListener(mouseEventsHandler);
          addMouseMotionListener(mouseEventsHandler);
          setBackground(Color.white);
          setVisible(true);
     public void setShapeType(int shapeType)
          this.shapeType=shapeType;
     public void setCurrentColor()
     public void isFilledShape()
     public void clearLastShape()
          shapeCount--;
          repaint();
     public void clearDrawing()
          shapeCount=0;
          repaint();
     public JLabel getStatusLabel()
          return statusLabel;
     public void paintComponent(Graphics g)
          super.paintComponent(g);
          if(currentShape!=null)
               if (currentShape.shapeType()==RECTANGLE)
                    g.drawRect(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getWidth());
               else if (currentShape.shapeType()==ELLIPSE)
                    g.drawOval(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getWidth());
               else if (currentShape.shapeType()==CIRCLE)
                    g.drawOval(currentShape.getStartingX(),currentShape.getStartingY(),currentShape.getLength(),currentShape.getLength());
          if (shapeCount>0)
               for (int c=0;c<shapeCount;c++)
                    if (myShapes[c].shapeType()==RECTANGLE)
                         g.drawRect(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getWidth());     
                    else if (myShapes[c].shapeType()==ELLIPSE)
                         g.drawOval(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getWidth());     
                    else if (myShapes[c].shapeType()==CIRCLE)
                         g.drawOval(myShapes[c].getStartingX(),myShapes[c].getStartingY(),myShapes[c].getLength(),myShapes[c].getLength());     
     private class mausHandler implements MouseListener, MouseMotionListener
          public void mouseClicked(MouseEvent e)
          public void mouseEntered(MouseEvent e)
          public void mouseExited(MouseEvent e)
          public void mousePressed(MouseEvent e)
               statusLabel.setText("Pressed at ("+e.getX()+","+e.getY()+")");
               if (shapeType==RECTANGLE)
                    currentShape = new Square(e.getX(),e.getY());     
               else if (shapeType==ELLIPSE)
                    currentShape = new Circle(e.getX(),e.getY());     
                    System.out.println("Oval");
               else if (shapeType==CIRCLE)
                    currentShape = new Circle(e.getX(),e.getY());     
                    System.out.println("Circle");
          public void mouseDragged(MouseEvent e)
               statusLabel.setText("Dragged at ("+e.getX()+","+e.getY()+")");
               currentShape.setDimensions(e.getX() - currentShape.getStartingX(),e.getY() - currentShape.getStartingY());
               repaint();
          public void mouseReleased(MouseEvent e)
               statusLabel.setText("Released at ("+e.getX()+","+e.getY()+")");
               currentShape.setDimensions(e.getX() - currentShape.getStartingX(),e.getY() - currentShape.getStartingY());
               myShapes[shapeCount] = currentShape;
               shapeCount++;
               currentShape=null;
               repaint();
          public void mouseMoved(MouseEvent e)
               statusLabel.setText("("+e.getX()+","+e.getY()+")");
}

Answer 1

Here are my other classes btw:
import java.awt.Graphics;
public interface Shape
     public abstract double getArea();
     public abstract double getVolume();
     public abstract String getShape();
     public abstract int getLength();
     public abstract int getWidth();
     public abstract double getRadius();
     public abstract double getHeight();
     public abstract void setDimensions(int length, int width);
     public abstract String toString();
     public abstract int shapeType();
     public abstract int getStartingX();
     public abstract int getStartingY();
import java.awt.Graphics;
public class Square extends TwoDimShape
     public Square(int x,int y)
          super("Square",x,y);
     public void setDimensions(int length,int width)
          super.length = length;
          super.width = width;
     public double getArea()
          return super.getArea() + (super.getLength()*super.getWidth());
     public String toString()
          return String.format(super.toString()+"\nOrigin: ("+getStartingX()+","+getStartingY()+")"+"\nArea: "+getArea()+"\nLength: "+getLength()+"\nWidth: "+getWidth());
     public int shapeType()
          return 0;
import java.awt.Graphics;
public class TwoDimShape implements Shape
     protected String shape;
     protected int length;
     protected int width;
     protected double radius;
     protected int x;
     protected int y;
     public TwoDimShape(String shape, int x, int y)
          this.shape = shape;
          this.x=x;
          this.y=y;          
     public TwoDimShape(String shape, double radius)
          this.shape=shape;
          this.radius=radius;
     public void setDimensions(int length, int width)
          this.length=length;
          this.width=width;
     public int getStartingX()
          return x;
     public int getStartingY()
          return y;
     public String getShape()
          return shape;
     public int getLength()
          return length;
     public int getWidth()
          return width;
     public double getRadius()
          return radius;
     public double getHeight()
          return 0.0;
     public double getArea()
          return 0.0;
     public double getVolume()
          return 0.0;
     public String toString()
          return String.format(shape +" ,2D shape with Area: ");
     public int shapeType()
          return -1;
import java.awt.Graphics;
public class Circle extends TwoDimShape
     public Circle(int x,int y)
          super("Square",x,y);
     public void setDimensions(int length,int width)
          super.length = length;
          super.width = width;
     public double getArea()
          return super.getArea() + (super.getLength()/2)*(super.getWidth()/2)*Math.PI;
     public String toString()
          return String.format(super.toString()+"\nOrigin: ("+getStartingX()+","+getStartingY()+")"+"\nArea: "+getArea()+"\nLength: "+getLength()+"\nWidth: "+getWidth());
     public int shapeType()
          return 1;
}