Re: Erasing a String produced using drawString()

From:
"BlackJackal" <mcdougal.robert@gmail.com>
Newsgroups:
comp.lang.java.help
Date:
23 Feb 2007 09:52:34 -0800
Message-ID:
<1172253154.738582.87670@a75g2000cwd.googlegroups.com>
This did the trick. I just redrew the first two strings in white. I
have no idea what was wrong with me yesterday I guess a good nights
sleep solves all.

   import javax.swing.*;
   import java.awt.*;
   import java.awt.event.*;
    public class JBlueGray extends JApplet implements ActionListener
   {
      String fname = "Robert";
      String lname = "McDougal";
      JButton pushme = new JButton("Click Me!");
      Font littlefont = new Font("Helvetica", Font.PLAIN, 12);
      Font bigfont = new Font("Helvetica", Font.PLAIN, 22);
      int x = 20, y = 50, width, count = 0, height;

       public void init()
      {
         Container con = getContentPane();
         con.setLayout(new FlowLayout());
         con.add(pushme);
         pushme.addActionListener(this);
         pushme.requestFocus();
      }

       public void paint(Graphics gr)
      {
         if (count == 1) {

            gr.setFont(littlefont);
            gr.setColor(Color.BLUE);
            width = gr.getFontMetrics().stringWidth(fname);
            height = gr.getFontMetrics().getHeight();
            gr.drawString(fname, x, y);
            gr.drawString(lname, x + (2 + width), y);
            pushme.repaint();
         }
         else if(count == 2) {
            gr.setColor(Color.WHITE);
            gr.drawString(fname, x, y);
            gr.drawString(lname, x + (width +2), y);
            gr.setFont(bigfont);
            gr.setColor(Color.DARK_GRAY);
            gr.drawString(fname, x, y);
            width = gr.getFontMetrics().stringWidth(fname);
            gr.setFont(littlefont);
            gr.setColor(Color.BLUE);
            gr.drawString(lname, x + (width + 2), y);
            pushme.repaint();
            pushme.setEnabled(false);
         }
      }

       public void actionPerformed(ActionEvent e)
      {
         Object source = e.getSource();
         if (source == pushme) {
            ++count;
            repaint();
         }

      }
   }

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