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import java.awt.BorderLayout;
import java.awt.Container;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
public class MainClass {
public static void main(String[] args) {
JFrame aWindow = new JFrame("This is a Box Layout");
aWindow.setBounds(200, 200, 200, 200);
aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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);
left.add(Box.createGlue());
JPanel leftPanel = new JPanel(new BorderLayout());
leftPanel.setBorder(new TitledBorder(new EtchedBorder(), "Line Color"));
leftPanel.add(left, BorderLayout.CENTER);
Box right = Box.createVerticalBox();
right.add(Box.createVerticalStrut(30));
right.add(new JCheckBox("Dashed"));
right.add(Box.createVerticalStrut(30));
right.add(new JCheckBox("Thick"));
right.add(Box.createVerticalStrut(30));
right.add(new JCheckBox("Rounded"));
right.add(Box.createGlue());
JPanel rightPanel = new JPanel(new BorderLayout());
rightPanel
.setBorder(new TitledBorder(new EtchedBorder(), "Line Properties"));
rightPanel.add(right, BorderLayout.CENTER);
Box top = Box.createHorizontalBox();
top.add(leftPanel);
top.add(Box.createHorizontalStrut(5));
top.add(rightPanel);
Container content = aWindow.getContentPane();
content.setLayout(new BorderLayout());
content.add(top, BorderLayout.CENTER);
BoxLayout box = new BoxLayout(content, BoxLayout.Y_AXIS);
content.setLayout(box);
content.add(top);
aWindow.setVisible(true);
}
}
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