/* Swingサンプル */

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JCheckBox;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import java.awt.Container;
import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

class SSample13_1 extends JFrame{
  static SSample13_1 frame;
  JCheckBox[] ckbox;

  public static void main(String args[]){
    frame = new SSample13_1("タイトル");
    frame.setVisible(true);
  }

  SSample13_1(String title){
    setTitle(title);
    setBounds(100, 100, 300, 250);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel p = new JPanel();

    ckbox = new JCheckBox[3];
    ckbox[0] = new JCheckBox("Orange");
    ckbox[1] = new JCheckBox("Melon");
    ckbox[2] = new JCheckBox("Grape");

    p.add(ckbox[0]);
    p.add(ckbox[1]);
    p.add(ckbox[2]);

    JPanel buttonpanel = new JPanel();

    JButton button = new JButton("button");
    button.addActionListener(
      new ActionListener(){
        public void actionPerformed(ActionEvent event){
          StringBuilder sb = new StringBuilder();

          for (int i = 0 ; i < ckbox.length; i++){
            sb.append(ckbox[i].getText());
            if (ckbox[i].isSelected()){
              sb.append("[選択]");
            }else{
              sb.append("[非選択]");
            }
            sb.append(" ");
          }

          JLabel msg = new JLabel(new String(sb));
          JOptionPane.showMessageDialog(frame, msg);
        }
      }
    );

    buttonpanel.add(button);

    Container contentPane = getContentPane();
    contentPane.add(p, BorderLayout.CENTER);
    contentPane.add(buttonpanel, BorderLayout.SOUTH);
  }
}