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;
public class Main {
public static void main(String[] args) {
String[] data = { "alist", "arithmetic", "ASCIInumbers", "A", "B",
"list", "C", "D", "E", "numeral", "G",
"F" };
JCheckBox[] checkBox;
JButton submitButton;
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JPanel contentPane = new JPanel();
contentPane.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(5, 5));
checkBox = new JCheckBox[data.length];
JPanel centerPanel = new JPanel();
centerPanel.setLayout(new GridLayout(0, 4, 5, 5));
for (int i = 0; i < data.length; i++) {
checkBox[i] = new JCheckBox(data[i]);
centerPanel.add(checkBox[i]);
}
contentPane.add(centerPanel, BorderLayout.CENTER);
JPanel footerPanel = new JPanel();
submitButton = new JButton("Submit");
footerPanel.add(submitButton);
contentPane.add(footerPanel, BorderLayout.PAGE_END);
frame.setContentPane(contentPane);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
}