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ButtonGroups.javaAPI DocExample3909Mon Apr 06 18:10:26 BST 1998c13.swing

ButtonGroups

public class ButtonGroups extends JPanel

Fields Summary
static String[]
ids
Constructors Summary
public ButtonGroups()

    add(makeBPanel(JButton.class, ids));
    add(makeBPanel(JToggleButton.class, ids));
    add(makeBPanel(JCheckBox.class, ids));
    add(makeBPanel(JRadioButton.class, ids));
Methods Summary
public static voidmain(java.lang.String[] args)

    Show.inFrame(new ButtonGroups(), 500, 300);
static JPanelmakeBPanel(java.lang.Class bClass, java.lang.String[] ids)

    
      
    ButtonGroup bg = new ButtonGroup();
    JPanel jp = new JPanel();
    String title = bClass.getName();
    title = title.substring(
      title.lastIndexOf('.") + 1);
    jp.setBorder(new TitledBorder(title));
    for(int i = 0; i < ids.length; i++) {
      AbstractButton ab = new JButton("failed");
      try {
        // Get the dynamic constructor method
        // that takes a String argument:
        Constructor ctor = bClass.getConstructor(
          new Class[] { String.class });
        // Create a new object:
        ab = (AbstractButton)ctor.newInstance(
          new Object[]{ids[i]});
      } catch(Exception ex) {
        System.out.println("can't create " + 
          bClass);
      }
      bg.add(ab);
      jp.add(ab);
    }
    return jp;