Java by API/javax.accessibility/Accessible

Accessible: getAccessibleContext()

 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.accessibility.AccessibleContext;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MainClass extends JFrame implements ActionListener {
  JButton jb;
  MainClass(String title) {
    super(title);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    AccessibleContext ac = getAccessibleContext();
    ac.setAccessibleDescription("Accessibility Demo1 description.");
    ac = getRootPane().getAccessibleContext();
    ac.setAccessibleName("Root pane");
    ac.setAccessibleDescription("Root pane description");
    ac = getGlassPane().getAccessibleContext();
    ac.setAccessibleName("Glass pane");
    ac.setAccessibleDescription("Glass pane description");
    ac = getLayeredPane().getAccessibleContext();
    ac.setAccessibleName("Layered pane");
    ac.setAccessibleDescription("Layered pane description");
    ac = getContentPane().getAccessibleContext();
    ac.setAccessibleName("Content pane");
    ac.setAccessibleDescription("Content pane description");
    JPanel p = new JPanel();
    ac = p.getAccessibleContext();
    ac.setAccessibleName("Panel");
    ac.setAccessibleDescription("Panel description");
    jb = new JButton("Press Me");
    jb.addActionListener(this);
    jb.setToolTipText("Press me for accessibility information.");
    p.add(jb);
    getContentPane().add(p);
    setSize(200, 75);
    setVisible(true);
  }
  public void actionPerformed(ActionEvent e) {
    dumpInfo(getAccessibleContext());
  }
  void dumpInfo(AccessibleContext ac) {
    System.out.println("Name = " + ac.getAccessibleName());
    System.out.println("Description = " + ac.getAccessibleDescription());
    int nChildren = ac.getAccessibleChildrenCount();
    for (int i = 0; i < nChildren; i++)
      dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
  }
  public static void main(String[] args) {
    new MainClass("Accessibility Demo1");
  }
}

implements Accessible

  

import java.awt.IllegalComponentStateException;
import java.util.Locale;
import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleRole;
import javax.accessibility.AccessibleStateSet;
public class Main implements Accessible {
  public AccessibleContext getAccessibleContext() {
    return new AccessibleContext() {
      @Override
      public AccessibleRole getAccessibleRole() {
        return null;
      }
      @Override
      public AccessibleStateSet getAccessibleStateSet() {
        return null;
      }
      @Override
      public int getAccessibleIndexInParent() {
        return 0;
      }
      @Override
      public int getAccessibleChildrenCount() {
        return 0;
      }
      @Override
      public Accessible getAccessibleChild(int i) {
        return null;
      }
      @Override
      public Locale getLocale() throws IllegalComponentStateException {
        return null;
      }
    };
  }
}