/* Swingサンプル */

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JCheckBox;
import java.awt.Container;
import java.awt.BorderLayout;

class SSample2_1 extends JFrame{
  public static void main(String args[]){
    SSample2_1 frame = new SSample2_1("タイトル");
    frame.setVisible(true);
  }

  SSample2_1(String title){
    setTitle(title);
    setBounds(100, 100, 300, 250);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel p = new JPanel();

    JCheckBox ckbox1 = new JCheckBox("Peach", true);
    JCheckBox ckbox2 = new JCheckBox("Apple", false);
    JCheckBox ckbox3 = new JCheckBox("Orange");
    ckbox3.setSelected(true);

    p.add(ckbox1);
    p.add(ckbox2);
    p.add(ckbox3);

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