Penerapan AbstractButton & Enumeration pada jRadioButton

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 */
package latihan13;

import java.awt.BorderLayout;

import java.awt.GridLayout;

import java.util.Enumeration;

import javax.swing.AbstractButton;

import javax.swing.BorderFactory;

import javax.swing.ButtonGroup;

import javax.swing.JCheckBox;

import javax.swing.JCheckBoxMenuItem;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JRadioButton;

import javax.swing.JRadioButtonMenuItem;

import javax.swing.JToggleButton;

import javax.swing.border.Border;

/**
 *
 * @author steven
 */
public class RadioButton1 extends javax.swing.JFrame {

    /**
     * Creates new form RadioButton1
     */
    public RadioButton1() {
        initComponents();


        AbstractButton abstract1 = jToggleButton1;

        buttonGroup1.add(abstract1);


        AbstractButton abstract2 = jRadioButton1;

        buttonGroup1.add(abstract2);


        AbstractButton abstract3 = jCheckBox1;

        buttonGroup1.add(abstract3);



        buttonGroup1.setSelected(abstract1.getModel(), true);

        Enumeration elements = buttonGroup1.getElements();

        while(elements.hasMoreElements()){


            AbstractButton tombol = (AbstractButton)elements.nextElement();

            if(tombol.isSelected()){


                System.out.println("Maka juaranya adalah : " + tombol.getText());
            }
        }






    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        jToggleButton1 = new javax.swing.JToggleButton();
        jRadioButton1 = new javax.swing.JRadioButton();
        jCheckBox1 = new javax.swing.JCheckBox();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jToggleButton1.setText("jToggleButton1");

        jRadioButton1.setText("jRadioButton1");

        jCheckBox1.setText("jCheckBox1");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jToggleButton1)
                    .addComponent(jRadioButton1)
                    .addComponent(jCheckBox1))
                .addContainerGap(268, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jToggleButton1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jRadioButton1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jCheckBox1)
                .addContainerGap(198, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(RadioButton1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(RadioButton1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(RadioButton1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(RadioButton1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new RadioButton1().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.JCheckBox jCheckBox1;
    private javax.swing.JRadioButton jRadioButton1;
    private javax.swing.JToggleButton jToggleButton1;
    // End of variables declaration
}