Spinner Sample

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Toolkit;

import javax.swing.JFrame;
import javax.swing.JSpinner;
import javax.swing.SpinnerDateModel;
import javax.swing.SpinnerListModel;
import javax.swing.SpinnerNumberModel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class SpinnerSample extends JFrame {

    public SpinnerSample() {
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(new Dimension(500, 500));
        Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
        this.setLocation(new Point((d.width - this.getWidth()) / 2, (d.height - this.getHeight()) / 2));

        GridBagLayout layout = new GridBagLayout();
        GridBagConstraints cons = new GridBagConstraints();
        this.setLayout(layout);

        cons.insets = new Insets(5, 5, 5, 5);
        cons.gridx = 0;
        cons.gridy = 0;
        cons.anchor = GridBagConstraints.WEST;
        cons.fill = GridBagConstraints.HORIZONTAL;

        JSpinner spinner = null;

        spinner = new JSpinner(new SpinnerDateModel());
        //spinner.setEditor(new JSpinner.DateEditor(spinner, "yyyy/MM/dd HH:mm"));
        this.add(spinner);
        layout.setConstraints(spinner, cons);

        cons.gridy++;
        spinner = new JSpinner(new SpinnerListModel(new String[] { "日曜日", "月曜日", "火曜日", "水曜日", "木曜日", "金曜日", "土曜日" }));
        this.add(spinner);
        layout.setConstraints(spinner, cons);

        cons.gridy++;
        spinner = new JSpinner(new SpinnerNumberModel());
        this.add(spinner);
        layout.setConstraints(spinner, cons);

        this.setVisible(true);
        this.pack();
    }

    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InstantiationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (UnsupportedLookAndFeelException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        new SpinnerSample();
    }
}