Slides

Register a listener on the text field

Listing 5 shows the beginning of code that

instantiates an object of an anonymous listener class, and
registers the listener object on the text field shown in Figure 1.

Listing 5. Beginning of anonymous listener class.
inputFileNameField.addActionListener( new ActionListener(){ public void actionPerformed(ActionEvent e){ fileName = inputFileNameField.getText(); pix = new Picture(fileName); pix.addMessage("Dick Baldwin",10,20); explorer = new PictureExplorer(pix);

Listing 5. Beginning of anonymous listener class.

    inputFileNameField.addActionListener(
      new ActionListener(){
        public void actionPerformed(ActionEvent e){
          fileName = inputFileNameField.getText();

          pix = new Picture(fileName);
          pix.addMessage("Dick Baldwin",10,20);

          explorer = new PictureExplorer(pix);

File: aq.htm

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