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import java.awt.BorderLayout;
import java.awt.Container;
import javax.swing.Box;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JRadioButton;
public class TryBoxLayout {
public static void main(String[] args) {
JFrame aWindow = new JFrame("This is a Box Layout");
aWindow.setBounds(30, 30, 300, 300);
aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create left column of radio buttons
Box left = Box.createVerticalBox();
left.add(Box.createVerticalStrut(30));
ButtonGroup radioGroup = new ButtonGroup();
JRadioButton rbutton;
radioGroup.add(rbutton = new JRadioButton("Red"));
left.add(rbutton);
left.add(Box.createVerticalStrut(30));
radioGroup.add(rbutton = new JRadioButton("Green"));
left.add(rbutton);
left.add(Box.createVerticalStrut(30));
radioGroup.add(rbutton = new JRadioButton("Blue"));
left.add(rbutton);
left.add(Box.createVerticalStrut(30));
radioGroup.add(rbutton = new JRadioButton("Yellow"));
left.add(rbutton);
Box right = Box.createVerticalBox();
right.add(new JCheckBox("A"));
right.add(new JCheckBox("B"));
right.add(new JCheckBox("C"));
Box top = Box.createHorizontalBox();
top.add(left);
top.add(right);
Container content = aWindow.getContentPane();
content.setLayout(new BorderLayout());
content.add(top, BorderLayout.CENTER);
aWindow.pack();
aWindow.setVisible(true);
}
}
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