Thread: Reset button.

My code so far is as follows. I am meant to clear the things inside the base traingle when i click on reset. But it clears the whole drawing panel. so i dont know how to get this work. :
import javax.swing.SwingUtilities;
import java.awt.BorderLayout;

import javax.swing.ButtonGroup;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.Dimension;
import javax.swing.JLabel;
import java.awt.Rectangle;
import javax.swing.JRadioButton;
import javax.swing.JTextField;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Panel;
import java.awt.GridBagLayout;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import javax.swing.JButton;

public class assignmentDraft_1 extends JFrame {

private static final long serialVersionUID = 1L;
private static final int TEXTFIELD_WIDTH = 35;
private static final int TEXTFIELD_HEIGHT = 20;
private static final int BASEFLAG_WIDTH = 240;
private static final int BASEFLAG_HEIGHT = 120;
private JPanel jContentPane = null; // @jve:decl-index=0:visual-constraint="39,10"
private JLabel jLabel_SelectShape = null;
private JLabel jLabel_Bar = null;
private JLabel jLabel_Circle = null;
private JRadioButton jRadioButton_Bar = null;
private JRadioButton jRadioButton_Circle = null;
private ButtonGroup elementGroup = new ButtonGroup(); // @jve:decl-index=0:
private ButtonGroup orientationGroup = new ButtonGroup ();// @jve:decl-index=0:
private ButtonGroup colourGroup = new ButtonGroup ();
private JLabel jLabel_BarThickness = null;
private JTextField jTextField_Bar_Thickness = null;
private JLabel jLabel_distanceLeft = null;
private JTextField jTextField_Distance = null;
private JLabel jLabel_HeightRight = null;
private JLabel jLabel_WidthRight = null;
private JTextField jTextField_HeightRight = null;
private JTextField jTextField_WidthRight = null;
private JLabel jLabel_XdistanceRight = null;
private JLabel jLabel_YdistanceRight = null;
private JTextField jTextField_XdistanceRight = null;
private JTextField jTextField_YdistanceRight = null;
int iX, iY, iWidth, iHeight, iHeightRectangle, iDistanceRectangle;
private JLabel jLabel_Orientation = null;
private JRadioButton jRadioButton_Horizontal = null;
private JRadioButton jRadioButton_Vertical = null;
private JLabel jLabel_Horizontal = null;
private JLabel jLabel_Vertical = null;
private myJPanel jPanel_DrawingArea = null;
//Declare a BufferedImage and its corresponding Graphics2D context object
private BufferedImage img;
private Graphics2D g2dImg; // @jve:decl-index=0:
private JButton jButton_Draw = null;
private JButton jButton_Reset = null;
private JButton jButton_Quit = null;
private JLabel jLabel_Color = null;
private JRadioButton jRadioButton_Red = null;
private JRadioButton jRadioButton_Green = null;
private JRadioButton jRadioButton_Blue = null;
private JLabel jLabel_Red = null;
private JLabel jLabel_Green = null;
private JLabel jLabel_Blue = null;
private Color drawingColour;

/**
* This method initializes jRadioButton_Bar
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Bar() {
if (jRadioButton_Bar == null) {
jRadioButton_Bar = new JRadioButton();
jRadioButton_Bar.setBounds(new Rectangle(14, 51, 21, 21));
jRadioButton_Bar.setSelected(true);
}
return jRadioButton_Bar;
}

/**
* This method initializes jRadioButton_Circle
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Circle() {
if (jRadioButton_Circle == null) {
jRadioButton_Circle = new JRadioButton();
jRadioButton_Circle.setBounds(new Rectangle(107, 46, 21, 21));
}
return jRadioButton_Circle;
}

/**
* This method initializes jTextField_Bar_Thickness
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_Bar_Thickness() {
if (jTextField_Bar_Thickness == null) {
jTextField_Bar_Thickness = new JTextField();
jTextField_Bar_Thickness.setBounds(new Rectangle(101, 80, 35, 20));
jTextField_Bar_Thickness.setText("40");
}
return jTextField_Bar_Thickness;
}

/**
* This method initializes jTextField_Distance
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_Distance() {
if (jTextField_Distance == null) {
jTextField_Distance = new JTextField();
jTextField_Distance.setBounds(new Rectangle(99, 111, 35, 20));
jTextField_Distance.setText("40");
}
return jTextField_Distance;
}

/**
* This method initializes jTextField_HeightRight
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_HeightRight() {
if (jTextField_HeightRight == null) {
jTextField_HeightRight = new JTextField();
jTextField_HeightRight.setBounds(new Rectangle(234, 78, 35, 20));
jTextField_HeightRight.setText("50");
jTextField_HeightRight.setText(Integer.toString(BA SEFLAG_WIDTH/3));
}
return jTextField_HeightRight;
}

/**
* This method initializes jTextField_WidthRight
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_WidthRight() {
if (jTextField_WidthRight == null) {
jTextField_WidthRight = new JTextField();
jTextField_WidthRight.setBounds(new Rectangle(235, 108, 35, 20));
//jTextField_WidthRight.setText("100");
jTextField_WidthRight.setText(Integer.toString(BAS EFLAG_HEIGHT/3));
}
return jTextField_WidthRight;
}

/**
* This method initializes jTextField_XdistanceRight
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_XdistanceRight() {
if (jTextField_XdistanceRight == null) {
jTextField_XdistanceRight = new JTextField();
jTextField_XdistanceRight.setBounds(new Rectangle(236, 138, TEXTFIELD_WIDTH, TEXTFIELD_HEIGHT));
jTextField_XdistanceRight.setText("10");
}
return jTextField_XdistanceRight;
}

/**
* This method initializes jTextField_YdistanceRight
*
* @return javax.swing.JTextField
*/
private JTextField getJTextField_YdistanceRight() {
if (jTextField_YdistanceRight == null) {
jTextField_YdistanceRight = new JTextField();
jTextField_YdistanceRight.setBounds(new Rectangle(237, 166, 35, 20));
jTextField_YdistanceRight.setText("20");
}
return jTextField_YdistanceRight;
}

/**
* This method initializes jRadioButton_Horizontal
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Horizontal() {
if (jRadioButton_Horizontal == null) {
jRadioButton_Horizontal = new JRadioButton();
jRadioButton_Horizontal.setBounds(new Rectangle(20, 221, 21, 21));
jRadioButton_Horizontal.setSelected(true);
jRadioButton_Horizontal.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
jLabel_distanceLeft.setText("Y Distance");
jLabel_BarThickness.setText("Height");
jTextField_Bar_Thickness.setText(Integer.toString( BASEFLAG_HEIGHT/3));
jTextField_Distance.setText(Integer.toString(BASEF LAG_HEIGHT/3));

}
});
}
return jRadioButton_Horizontal;
}

/**
* This method initializes jRadioButton_Vertical
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Vertical() {
if (jRadioButton_Vertical == null) {
jRadioButton_Vertical = new JRadioButton();
jRadioButton_Vertical.setBounds(new Rectangle(15, 244, 21, 21));

jRadioButton_Vertical.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
jLabel_distanceLeft.setText("X Distance");
jLabel_BarThickness.setText("Width");
jTextField_Bar_Thickness.setText(Integer.toString( BASEFLAG_WIDTH/3));
jTextField_Distance.setText(Integer.toString(BASEF LAG_WIDTH/3));
}
});
}
return jRadioButton_Vertical;
}

/**
* This method initializes jPanel_DrawingArea
*
* @return javax.swing.JPanel
*/
private JPanel getJPanel_DrawingArea() {
if (jPanel_DrawingArea == null) {
jPanel_DrawingArea = new myJPanel();
jPanel_DrawingArea.setLayout(new GridBagLayout());
jPanel_DrawingArea.setBounds(new Rectangle(345, 29, 300, 200));
jPanel_DrawingArea.setBackground(Color.white);
jPanel_DrawingArea.setEnabled(false);

//Instantiate the BufferedImage object and give it the same width
// and height as that of the drawing area JPanel
//img = new BufferedImage(jPanel_DrawingArea.getWidth(),
//jPanel_DrawingArea.getHeight(),
// BufferedImage.TYPE_INT_RGB);
//Get its graphics context. A graphics context of a particular object allows us to draw on it.
//g2dImg = (Graphics2D)img.getGraphics();

//g2dImg.setPaint(Color.WHITE);
//g2dImg.fill(new Rectangle2D.Double(0, 0, img.getWidth(), img.getHeight()));
}
return jPanel_DrawingArea;
}

/**
* This method initializes jButton_Draw
*
* @return javax.swing.JButton
*/
private JButton getJButton_Draw() {
if (jButton_Draw == null) {
jButton_Draw = new JButton();
jButton_Draw.setBounds(new Rectangle(255, 255, 75, 31));
jButton_Draw.setText("Draw");
jButton_Draw.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
// Get values from the text fields
iX = Integer.parseInt(jTextField_XdistanceRight.getText ());
iY = Integer.parseInt(jTextField_YdistanceRight.getText ());
iWidth = Integer.parseInt(jTextField_WidthRight.getText());
iHeight = Integer.parseInt(jTextField_HeightRight.getText()) ;
iHeightRectangle = Integer.parseInt(jTextField_Bar_Thickness.getText( ));
iDistanceRectangle = Integer.parseInt(jTextField_Distance.getText());
jPanel_DrawingArea.repaint();
}
});


}
return jButton_Draw;
}

/**
* This method initializes jButton_Reset
*
* @return javax.swing.JButton
*/
private JButton getJButton_Reset() {
if (jButton_Reset == null) {
jButton_Reset = new JButton();
jButton_Reset.setBounds(new Rectangle(370, 249, 91, 32));
jButton_Reset.setText("Reset");
jButton_Reset.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
jPanel_DrawingArea.clear(jPanel_DrawingArea.getGra phics());



}
});

}
return jButton_Reset;
}



/**
* This method initializes jButton_Quit
*
* @return javax.swing.JButton
*/
private JButton getJButton_Quit() {
if (jButton_Quit == null) {
jButton_Quit = new JButton();
jButton_Quit.setBounds(new Rectangle(492, 257, 84, 33));
jButton_Quit.setText("Quit");
jButton_Quit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
System.exit(0);
}
});
}
return jButton_Quit;
}

/**
* This method initializes jRadioButton_Red
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Red() {
if (jRadioButton_Red == null) {
jRadioButton_Red = new JRadioButton();
jRadioButton_Red.setBounds(new Rectangle(19, 303, 21, 21));
}
return jRadioButton_Red;
}

/**
* This method initializes jRadioButton_Green
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Green() {
if (jRadioButton_Green == null) {
jRadioButton_Green = new JRadioButton();
jRadioButton_Green.setBounds(new Rectangle(15, 324, 21, 21));
jRadioButton_Green.setSelected(true);
}
return jRadioButton_Green;
}

/**
* This method initializes jRadioButton_Blue
*
* @return javax.swing.JRadioButton
*/
private JRadioButton getJRadioButton_Blue() {
if (jRadioButton_Blue == null) {
jRadioButton_Blue = new JRadioButton();
jRadioButton_Blue.setBounds(new Rectangle(13, 352, 21, 21));
}
return jRadioButton_Blue;
}

/**
* @param args
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
assignmentDraft_1 thisClass = new assignmentDraft_1();
thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_ CLOSE);
thisClass.setVisible(true);
}
});
}

/**
* This is the default constructor
*/
public assignmentDraft_1() {
super(); // Call to the parent class JFrame to starta window.
initialize(); // Call to initialise
}

/**
* This method initializes this
*
* @return void
*/
private void initialize() {
this.setSize(672, 416);
this.setContentPane(getJContentPane());
this.setTitle("Java Flags A - u3036830");

//initialize button groups
elementGroup.add(jRadioButton_Bar);
elementGroup.add(jRadioButton_Circle);

orientationGroup.add(jRadioButton_Horizontal);
orientationGroup.add(jRadioButton_Vertical);

colourGroup.add(jRadioButton_Red);
colourGroup.add(jRadioButton_Green);
colourGroup.add(jRadioButton_Blue);


}

/**
* This method initializes jContentPane
*
* @return javax.swing.JPanel
*/
private JPanel getJContentPane() {
if (jContentPane == null) {
jLabel_Blue = new JLabel();
jLabel_Blue.setBounds(new Rectangle(42, 356, 37, 16));
jLabel_Blue.setText("Blue");
jLabel_Green = new JLabel();
jLabel_Green.setBounds(new Rectangle(41, 330, 40, 18));
jLabel_Green.setText("Green");
jLabel_Red = new JLabel();
jLabel_Red.setBounds(new Rectangle(42, 307, 28, 17));
jLabel_Red.setText("Red");
jLabel_Color = new JLabel();
jLabel_Color.setBounds(new Rectangle(15, 272, 47, 24));
jLabel_Color.setText("Colour");
jLabel_Vertical = new JLabel();
jLabel_Vertical.setBounds(new Rectangle(46, 245, 52, 16));
jLabel_Vertical.setText("Vertical");
jLabel_Horizontal = new JLabel();
jLabel_Horizontal.setBounds(new Rectangle(46, 224, 65, 16));
jLabel_Horizontal.setText("Horizontal");
jLabel_Orientation = new JLabel();
jLabel_Orientation.setBounds(new Rectangle(19, 187, 68, 21));
jLabel_Orientation.setText("Orientation");
jLabel_YdistanceRight = new JLabel();
jLabel_YdistanceRight.setBounds(new Rectangle(180, 163, 47, 26));
jLabel_YdistanceRight.setText("Y Distance");
jLabel_XdistanceRight = new JLabel();
jLabel_XdistanceRight.setBounds(new Rectangle(178, 136, 45, 21));
jLabel_XdistanceRight.setText("X Distance");
jLabel_WidthRight = new JLabel();
jLabel_WidthRight.setBounds(new Rectangle(180, 112, 44, 19));
jLabel_WidthRight.setText("Width");
jLabel_HeightRight = new JLabel();
jLabel_HeightRight.setBounds(new Rectangle(180, 76, 48, 26));
jLabel_HeightRight.setText("Height");
jLabel_distanceLeft = new JLabel();
jLabel_distanceLeft.setBounds(new Rectangle(18, 110, 70, 25));
jLabel_distanceLeft.setText("Y Distance" +
"");
jLabel_BarThickness = new JLabel();
jLabel_BarThickness.setBounds(new Rectangle(17, 78, 50, 24));
jLabel_BarThickness.setText("Height");
jLabel_Circle = new JLabel();
jLabel_Circle.setBounds(new Rectangle(136, 46, 74, 23));
jLabel_Circle.setText("Add a Circle");
jLabel_Bar = new JLabel();
jLabel_Bar.setBounds(new Rectangle(38, 51, 60, 19));
jLabel_Bar.setText("Add a Bar");
jLabel_SelectShape = new JLabel();
jLabel_SelectShape.setBounds(new Rectangle(12, 18, 274, 22));
jLabel_SelectShape.setText("Select the Shape you want to add to the Flag");
jContentPane = new JPanel();
jContentPane.setLayout(null);
jContentPane.setSize(new Dimension(636, 397));
jContentPane.add(jLabel_SelectShape, null);
jContentPane.add(jLabel_Bar, null);
jContentPane.add(jLabel_Circle, null);
jContentPane.add(getJRadioButton_Bar(), null);
jContentPane.add(getJRadioButton_Circle(), null);
jContentPane.add(jLabel_BarThickness, null);
jContentPane.add(getJTextField_Bar_Thickness(), null);
jContentPane.add(jLabel_distanceLeft, null);
jContentPane.add(getJTextField_Distance(), null);
jContentPane.add(jLabel_HeightRight, null);
jContentPane.add(jLabel_WidthRight, null);
jContentPane.add(getJTextField_HeightRight(), null);
jContentPane.add(getJTextField_WidthRight(), null);
jContentPane.add(jLabel_XdistanceRight, null);
jContentPane.add(jLabel_YdistanceRight, null);
jContentPane.add(getJTextField_XdistanceRight(), null);
jContentPane.add(getJTextField_YdistanceRight(), null);
jContentPane.add(jLabel_Orientation, null);
jContentPane.add(getJRadioButton_Horizontal(), null);
jContentPane.add(getJRadioButton_Vertical(), null);
jContentPane.add(jLabel_Horizontal, null);
jContentPane.add(jLabel_Vertical, null);
jContentPane.add(getJPanel_DrawingArea(), null);
jContentPane.add(getJButton_Draw(), null);
jContentPane.add(getJButton_Reset(), null);
jContentPane.add(getJButton_Quit(), null);
jContentPane.add(jLabel_Color, null);
jContentPane.add(getJRadioButton_Red(), null);
jContentPane.add(getJRadioButton_Green(), null);
jContentPane.add(getJRadioButton_Blue(), null);
jContentPane.add(jLabel_Red, null);
jContentPane.add(jLabel_Green, null);
jContentPane.add(jLabel_Blue, null);
}
return jContentPane;
}

class myJPanel extends JPanel
{
// Declare and instantiate an ellipse and rectangle object of
// dimension zero. We will later just change their dimension
// and location for efficiency.
private Ellipse2D.Double ellipse;
private Rectangle2D.Double rectangleHeight;
private Rectangle2D.Double rectangleWidth;
private Rectangle2D.Double baserectangle;

/**
* Override paintComnponent method with our draw commands
*
*/
public void paintComponent(Graphics g)
{
//Must be called to draw the JPanel control.
// As a side effect, it also clears it.
//super.paintComponent(g);

// Change the dimension and location of the ellipse and rectangle
// obtained from the user interface.

ellipse = new Ellipse2D.Double(iX, iY, iWidth, iHeight);
rectangleHeight = new Rectangle2D.Double(11, iDistanceRectangle, 239, iHeightRectangle);
rectangleWidth = new Rectangle2D.Double(iDistanceRectangle,11,iHeightRe ctangle,119);
Graphics2D g2d = (Graphics2D)g;
baserectangle = new Rectangle2D.Double(10, 10, BASEFLAG_WIDTH, BASEFLAG_HEIGHT);
g2d.draw(baserectangle);



if (jRadioButton_Red.isSelected())
{ drawingColour = Color.red;
g2d.setPaint(Color.red);
}
else if (jRadioButton_Green.isSelected())
{ drawingColour = Color.green;
g2d.setPaint(Color.green);
}
else if (jRadioButton_Blue.isSelected())
{ drawingColour = Color.blue;
g2d.setPaint(Color.blue);
}

//if (jRadioButton_Bar.isSelected())
//{
//if (jRadioButton_Horizontal.isSelected())
//g2d.fill(rectangleHeight);
//else if (jRadioButton_Vertical.isSelected())
//g2d.fill(rectangleWidth);
//} else if (jRadioButton_Circle.isSelected())
//g2d.fill(ellipse);

if (jRadioButton_Circle.isSelected())
g2d.fill(ellipse);

else if (jRadioButton_Bar.isSelected()&& jRadioButton_Horizontal.isSelected())
g2d.fill(rectangleHeight);
else if (jRadioButton_Bar.isSelected()&& jRadioButton_Vertical.isSelected())
g2d.fill(rectangleWidth);
else if (jButton_Reset.isSelected())
g2d.draw(baserectangle);




//if (jRadioButton_Bar.isSelected())
//g2d.draw(baserectangle);
//else if (jRadioButton_Circle.isSelected())
//g2d.fill(ellipse);





}

protected void clear(Graphics g) {
super.paintComponent(g);

// Also clear the BufferedImage object by drawing a white coloured filled rectangle all over.
//g2d.setPaint(Color.WHITE);
//g2d.fill(new Rectangle2D.Double(0, 0, img.getWidth(), img.getHeight()));
}

}

} // @jve:decl-index=0:visual-constraint="74,-4"

Can you repost your code with code tags. There are many errors in the code because of the formatting.

Also your class names do NOT follow the conventions. They should start with Capital letters.
Variable names start with lowercase.

Where in the code does is the "reset" code doing its thing? The last clear() method appears to

drawing a white coloured filled rectangle all over