日历程序再修改

package w02;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

class CalMonth extends JFrame {

    JLabel[] days = new JLabel[31];

    JLabel[] dayTitles = new JLabel[7];

    JLabel monthTitle = new JLabel("October 2000");

    CalMonth() {

        super("October 2000");

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        BorderLayout bly=new BorderLayout();

        FlowLayout flow = new FlowLayout();

        JPanel titlePane = new JPanel();

        titlePane.setLayout(flow);

        titlePane.add(monthTitle);

        JPanel monthPane = new JPanel();

        JPanel Calendar=new JPanel();

        Calendar.setLayout(bly);

        GridLayout calLayout = new GridLayout(6, 7);

        monthPane.setLayout(calLayout);

        String[] dayNames = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };

        for (int i = 0; i < 7; i++) {

            dayTitles[i] = new JLabel(dayNames[i]);

            monthPane.add(dayTitles[i]);

        }

        for (int i = 0; i < days.length; i++) {

            days[i] = new JLabel("" + (i+1));

            monthPane.add(days[i]);

        }

        Calendar.add("North",titlePane);

        Calendar.add("Center",monthPane);

        setContentPane(Calendar);

        pack();

        setVisible(true);

    }

    public static void main(String[] arguments) {

        CalMonth cal = new CalMonth();

    }

}

运行结果如下：