accessibilitydemo9.java

java 完全探索的随书源码

// AccessibilityDemo9.java

import javax.accessibility.*;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;

class AccessibilityDemo9 extends JFrame
{
   AccessibilityDemo9 (String title)
   {
      super (title);

      addWindowListener (new WindowAdapter ()
                         {
                             public void windowClosing (WindowEvent e)
                             {
                                System.exit (0);
                             }
                         });


      JPanel p = new JPanel ();
      p.setPreferredSize (new Dimension (300, 50));
      JScrollBar jsb;
      jsb = new JScrollBar (Adjustable.HORIZONTAL, 0, 1, 0, 100);
      jsb.setPreferredSize (new Dimension (200, 20));
      p.add (jsb);

      getContentPane ().add (p);

      pack ();
      setVisible (true);
   }

   public static void main (String [] args)
   {
      AccessibilityDemo9 ad9;
      ad9 = new AccessibilityDemo9 ("Accessibility Demo9");

      try
      {
          Thread.sleep (5000);
      }
      catch (InterruptedException e) {}

      ad9.dumpValueInfo (ad9.getAccessibleContext ());
   }

   void dumpValueInfo (AccessibleContext ac)
   {
      AccessibleValue av = ac.getAccessibleValue ();

      if (av != null)
      {
          System.out.println ("Minimum value = "
                              + av.getMinimumAccessibleValue ());
          System.out.println ("Current value = "
                              + av.getCurrentAccessibleValue ());
          System.out.println ("Maximum value = "
                              + av.getMaximumAccessibleValue ());

          return;
      }
            
      int nChildren = ac.getAccessibleChildrenCount ();

      for (int i = 0; i < nChildren; i++)
           dumpValueInfo (ac.getAccessibleChild (i)
                            .getAccessibleContext ());
   }
}