Need help on text

Question

How come there are no words on the button.
like the first button is red but it blank.
2nd one is blue
3rd is green but nothing shows.
How do I fix this?
import javax.swing.* ;
import java.awt.* ;
import java.awt.event.* ;
public class PushButton
             extends JComponent {
     *  The state of this PushButton.
   private boolean state ;
     *  The text associated with this PushButton.
   private String text ;
     *  Command string associated with this?
   private String actionCommand ;
     *  The ActionListeners associated with this PushButton
   protected ActionListener listeners  ;  
     *  Construct from text.
   public PushButton(String txt) {
      this.text = txt ;
      this.state = false ;
      this.addMouseListener(new MouseAdapter() {
         public void mousePressed(MouseEvent e) {
            if (state) state = false ;
            else state = true ;
            repaint() ;
            /////////////////////// generate ActionEvent
            if (listeners != null)
               listeners.actionPerformed(
                  new ActionEvent(PushButton.this,
                                  e.getID() ,
                                  PushButton.this.getActionCommand())) ;
   /*** Set the action command. */
   public void setActionCommand(String ac) {
      this.actionCommand = ac ;
   /*** Get the action command. */
   public String getActionCommand() {
      return actionCommand ;
   /*** Add an action listener to this PushButton. */
   public void addActionListener(ActionListener l) {
      listeners = AWTEventMulticaster.add(listeners,l) ;
   /*** Remove an action listener from this PushButton. */
   public void removeActionListener(ActionListener l) {
      listeners = AWTEventMulticaster.remove(listeners,l) ;
   /*** Return the text on this PushButton. */
   public String getText() {
      return this.text ;
   /*** Set the text on this PushButton. */
   public void setText(String txt) {
      this.text = txt ;
     *  Inquire about the state of this PushButton.
   public boolean getSelected() {
      return this.state ;
     * What dimension does the text have?
   protected Dimension getTextBounds(Graphics g) {
      g.setFont(this.getFont()) ;
      FontMetrics fm = g.getFontMetrics(this.getFont()) ;
      int w = fm.stringWidth(this.text),
          h = fm.getHeight() ;  
      return new Dimension(w,h) ;
     *  Paint the PushButton, depending upon state.
   public void paintComponent(Graphics g) {
      if (!state) paintUp(g) ;
      else paintDown(g) ;
   public void paintUp(Graphics g) {
      Dimension d = this.getSize() ;
      int w = d.width - 1 ;
      int h = d.height - 1 ;
      g.setColor(Color.white) ;
      g.drawLine(0,0,w-1,0) ;
      g.drawLine(0,1,0,h-1) ;
      g.setColor(Color.darkGray) ;
      g.drawLine(1,h-1,w-1,h-1) ;
      g.drawLine(w-1,1,w-1,h-2) ;
      g.setColor(Color.black) ;
      g.drawLine(1,h,w,h) ;
      g.drawLine(w,1,w,h-1) ;
      g.setColor(this.getForeground()) ;
      g.dispose() ;
   public void paintDown(Graphics g) {
      Dimension d = this.getSize() ;
      int w = d.width - 1 ;
      int h = d.height - 1 ;
      g.setColor(Color.black) ;
      g.drawLine(0,0,0,h-1) ;
      g.drawLine(1,0,w-1,0) ;
      g.setColor(Color.darkGray) ;
      g.drawLine(1,1,1,h-2) ;
      g.drawLine(1,1,w-2,1) ;
      g.setColor(Color.lightGray) ;
      g.drawLine(2,h-1,2,h-1) ;  // just one square
      g.drawLine(w-1,1,w-1,1) ;
      g.setColor(Color.white) ;
      g.drawLine(0,h,w,h) ;
      g.drawLine(w,0,w,h-1) ;
            g.dispose() ;
     * Test stub, from command line.
   public static void main(String[] args) {
      PBtest pbt = new PBtest() ;
      pbt.setSize(300,375) ;
      pbt.setLocation(500,500) ;
      pbt.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE) ;
      pbt.setVisible(true) ;
}  // end of PushButton class

Answer 1

part II of the code
  *    Set up three PushButtons to control color of a panel.
class PBtest extends JFrame
            implements ActionListener {
   JPanel midpane ;
   PushButton pb1, pb2, pb3 ;
   public PBtest() {
      super.setTitle("PushButton Test (R/G/B)") ;
      midpane = new JPanel() ;
      JToolBar toolbar = new JToolBar() ;
      pb1 = new PushButton("Red") ;
      ///// REMOVE later
      pb1.setPreferredSize(new Dimension(30,30)) ;
      pb1.setActionCommand("red") ;
      pb1.addActionListener(this) ;
      pb1.setForeground(Color.blue) ;
          pb1.setText("red");
      pb2 = new PushButton("Green") ;
      pb2.addActionListener(this) ;
      pb2.setActionCommand("green") ;
      pb2.setForeground(Color.green) ;
          pb2.setText("green");
      pb3 = new PushButton("Blue") ;
      pb3.addActionListener(this) ;
      pb2.setActionCommand("blue") ;
      pb3.setBackground(Color.white) ;
          pb3.setText("blue");
      toolbar.add(pb1) ;
      toolbar.add(new JToolBar.Separator()) ;  
      toolbar.add(pb2) ;
      toolbar.add(new JToolBar.Separator()) ;  
      toolbar.add(pb3) ;
      this.getContentPane().setLayout(new BorderLayout()) ;
      this.getContentPane().add(toolbar, BorderLayout.NORTH) ;
      this.getContentPane().add(midpane, BorderLayout.CENTER) ;
      this.setVisible(true) ;
      this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE) ;
   public void actionPerformed(ActionEvent a) { 
      int r = (pb1.getSelected() ? 255 : 0),
          g = (pb2.getSelected() ? 255 : 0),
          b = (pb3.getSelected() ? 255 : 0) ;
      midpane.setBackground(new Color(r,g,b)) ;
      midpane.repaint() ;
}