Enter # in JTextField, draw = # ovals, use JBottons to color ovals???

[Douglas Braxton]

all
i have an assignment that requires the user to enter a JTextField integer value.
that value is then used to draw an equal # of ovals.
after the ovals are drawn user selects a color button (red/blue) to fill the ovals already drawn based on the button color.
i have everything coded and working except the coloring.
i need help because i can't seem to figure out where or how to fill the ovals with the colors of the button pushed.
OvalDriver7b invokes OvalFrame7B invokes OvalPanel7B.
thanx
75gator

/*
 * OvalDriver7B.java
 *
 * Created on April 26, 2004, 1:50 PM
 *
 * @author  dbraxton
 */
// declare OvalDriver7b class
public class OvalDriver7B  {
  public static void main (String [ ] args)  {
    OvalFrame7B oframe = new OvalFrame7B();
    oframe.setTitle("Request ovals by text ");
    oframe.show();
  }// terminate main
}// terminate OvalDriver7B

/*
 * OvalFrame7B.java
 *
 * Created on April 26, 2004, 2:35 PM
 */
// @author  dbraxton
// import JAVA API classes
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
// class declaration
public class OvalFrame7B extends JFrame  {
  private JTextField numOvals;
  private JLabel labelField;
  private JButton rButton, bButton;
  private JPanel textPanel, buttonPanel;
  private OvalPanel7B opanel;
  final int WIDTH = 300;
  final int HEIGHT = 300;
      
  public OvalFrame7B()  {
    
    setSize(800,565);
    this.addWindowListener(new WindowCloser());
    opanel = new OvalPanel7B();
    labelField = new JLabel("Enter integer for # ovals: ");
    numOvals = new JTextField(2);
    rButton = new JButton("RED");
    bButton = new JButton("BLUE");
    numOvals.addActionListener(new TextFieldListener());
    
    Color rColor = new Color(255,0,0);
    Color bColor = new Color(0,0,255);
    buttonPanel  = new JPanel();
    buttonPanel.setLayout(new GridLayout (1,2));
    buttonPanel.add(rButton);
    buttonPanel.add(bButton);
    rButton.addActionListener(new ActionListener()  {
        public void actionPerformed(ActionEvent event)  {
            //color ovals red ????????
            opanel.repaint();
        }
    }   
    );
    bButton.addActionListener(new ActionListener()  {
        public void actionPerformed(ActionEvent event)  {
        //color ovals blue ????????
            opanel.repaint();
        }
    }   
    );
    textPanel = new JPanel();
    textPanel.setLayout(new GridLayout (1,2));
    textPanel.add(labelField);
    textPanel.add(numOvals);
    
    Container contentPane = getContentPane();
    
    contentPane.setLayout(new BorderLayout());
    contentPane.add(opanel, "Center");
    contentPane.add(textPanel, "South");
    contentPane.add(buttonPanel, "North");
  }
  
  private class TextFieldListener implements ActionListener  {
    public void actionPerformed(ActionEvent event)  {
      String input = numOvals.getText();
      opanel.setOvalCount(Integer.parseInt(input));
      numOvals.setText("");
    }
  }
    
  private class WindowCloser extends WindowAdapter  {
    public void WindowClosing (WindowEvent wex)  {
      System.exit(0);
    }
  }
}

/*
 * OvalPanel7B.java
 *
 * Created on April 26, 2004, 2:35 PM
 *
 * @author  dbraxton
 */
  
// import JAVA API classes
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.util.Random;
// begin class declaration
class OvalPanel7B extends JPanel  {
  private int ovalcount;
  private static final double O_WIDTH = 50;
  private static final double O_HEIGHT = 100;
  double w1 = 100,  h1 = 100;
  OvalPanel7B()  {
  }
  public void paintComponent(Graphics g)  {
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D) g;
    Random rnd = new Random();
    g2.setBackground(Color.WHITE);
    
    for ( int i=0; i < ovalcount; i++)  {
      double x = rnd.nextDouble() +  w1;
      double y = rnd.nextDouble() +  h1;
      w1 = w1 + 50;
      h1 = h1 + 0;
      Ellipse2D.Double oval = new Ellipse2D.Double(x,y,O_WIDTH,O_HEIGHT);
      g2.setColor(Color.BLACK);
      
      if ( i % 2 > 0)  {
        g2.draw(oval);
      }  
      else
      {  
         x = rnd.nextDouble() +  w1;
         y = rnd.nextDouble() +  h1;
         g2.draw(oval);
      }  
    }w1 = 100;  h1 = 100;
 }
  public void setOvalCount (int cntx)  {
    ovalcount = cntx;
    repaint();
  }
}

[ April 27, 2004: Message edited by: Douglas Braxton ]
[ April 27, 2004: Message edited by: Douglas Braxton ]
[ April 27, 2004: Message edited by: Douglas Braxton ]
[ April 27, 2004: Message edited by: Douglas Braxton ]
[ April 28, 2004: Message edited by: Douglas Braxton ]

[Michael Dunn]

try this

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
import java.util.Random;
class OvalDriver7B  {
  public static void main (String [ ] args)  {
    OvalFrame7B oframe = new OvalFrame7B();
    oframe.setTitle("Request ovals by text ");
    oframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    oframe.show();
  }
}
class OvalFrame7B extends JFrame  {
  private JTextField numOvals;
  private JLabel labelField;
  private JButton rButton, bButton;
  private JPanel textPanel, buttonPanel;
  private OvalPanel7B opanel;
  final int WIDTH = 300;
  final int HEIGHT = 300;      
  public OvalFrame7B()  {   
    setSize(800,565);
    this.addWindowListener(new WindowCloser());
    opanel = new OvalPanel7B();
    labelField = new JLabel("Enter integer for # ovals: ");
    numOvals = new JTextField(2);
    rButton = new JButton("RED");
    bButton = new JButton("BLUE");
    numOvals.addActionListener(new TextFieldListener());   
    Color rColor = new Color(255,0,0);
    Color bColor = new Color(0,0,255);
    buttonPanel  = new JPanel();
    buttonPanel.setLayout(new GridLayout (1,2));
    buttonPanel.add(rButton);
    buttonPanel.add(bButton);
    rButton.addActionListener(new ActionListener()  {
        public void actionPerformed(ActionEvent event)  {
            opanel.clrSelected = 0;
            opanel.repaint();
        }
    }   
    );
    bButton.addActionListener(new ActionListener()  {
        public void actionPerformed(ActionEvent event)  {
            opanel.clrSelected = 1;
            opanel.repaint();}});
    textPanel = new JPanel();
    textPanel.setLayout(new GridLayout (1,2));
    textPanel.add(labelField);
    textPanel.add(numOvals);   
    Container contentPane = getContentPane();   
    contentPane.setLayout(new BorderLayout());
    contentPane.add(opanel, "Center");
    contentPane.add(textPanel, "South");
    contentPane.add(buttonPanel, "North");
  } 
  private class TextFieldListener implements ActionListener  {
    public void actionPerformed(ActionEvent event)  {
      String input = numOvals.getText();
      opanel.setOvalCount(Integer.parseInt(input));
      numOvals.setText("");
    }
  }    
  private class WindowCloser extends WindowAdapter  {
    public void WindowClosing (WindowEvent wex)  {
      System.exit(0);
    }
  }
}
class OvalPanel7B extends JPanel  {
  Color[] clr = {Color.RED,Color.BLUE};
  int clrSelected = -1;
  private int ovalcount;
  private static final double O_WIDTH = 50;
  private static final double O_HEIGHT = 100;
  double w1 = 100,  h1 = 100;
  OvalPanel7B()  {
  }
  public void paintComponent(Graphics g)  {
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D) g;
    Random rnd = new Random();
    g2.setBackground(Color.WHITE);
    
    for ( int i=0; i < ovalcount; i++)  {
      double x = rnd.nextDouble() +  w1;
      double y = rnd.nextDouble() +  h1;
      w1 = w1 + 50;
      h1 = h1 + 0;
      Ellipse2D.Double oval = new Ellipse2D.Double(x,y,O_WIDTH,O_HEIGHT);
      g2.setColor(Color.BLACK);     
      if ( i % 2 > 0)  {
        g2.draw(oval);       
      }  
      else
      {  
         x = rnd.nextDouble() +  w1;
         y = rnd.nextDouble() +  h1;
         g2.draw(oval);
      } 
      if(clrSelected > -1)
      {
        g2.setColor(clr[clrSelected]);
        g2.fillOval((int)w1-50,(int)h1,(int)O_WIDTH,(int)O_HEIGHT); 
      }
    }   
    w1 = 100;  h1 = 100;
 }
  public void setOvalCount (int cntx)  {
    ovalcount = cntx;
    repaint();
  }
}

[Douglas Braxton]

thanks michael!