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import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.Border;
public class MainClass {
public static void main(String[] a) {
JFrame frame = new JFrame("Flat CheckBox Sample");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel(new GridLayout(0, 1));
Border border = BorderFactory.createTitledBorder("Pizza Toppings");
panel.setBorder(border);
JCheckBox check = new JCheckBox("Anchovies");
check.setBorderPaintedFlat(true);
panel.add(check);
check = new JCheckBox("Garlic");
panel.add(check);
check = new JCheckBox("Onions");
check.setBorderPaintedFlat(true);
panel.add(check);
check = new JCheckBox("Pepperoni");
panel.add(check);
check = new JCheckBox("Spinach");
check.setBorderPaintedFlat(true);
panel.add(check);
frame.add(panel, BorderLayout.CENTER);
frame.setSize(300, 200);
frame.setVisible(true);
}
}
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