import java.awt.*;
import javax.swing.*;

/** A JPanel that displays six JRadioButtons. 
 *
 *  Taken from Core Web Programming from 
 *  Prentice Hall and Sun Microsystems Press,
 *  http://www.corewebprogramming.com/.
 *  © 2001 Marty Hall and Larry Brown;
 *  may be freely used or adapted.
 */

public class SixChoicePanel extends JPanel {
  public SixChoicePanel(String title, String[] buttonLabels) {
    super(new GridLayout(3, 2));
    setBackground(Color.lightGray);
    setBorder(BorderFactory.createTitledBorder(title));
    ButtonGroup group = new ButtonGroup();
    JRadioButton option;
    int halfLength = buttonLabels.length/2;  // Assumes even length
    for(int i=0; i<halfLength; i++) {
      option = new JRadioButton(buttonLabels[i]);
      group.add(option);
      add(option);
      option = new JRadioButton(buttonLabels[i+halfLength]);
      group.add(option);
      add(option);
    }
  }
}