phpcmsv9网站建设入门教程,海外网站备案,扁平化网站设计趋势,ppt设计多少钱一页实训要求#xff1a;1.使用BorderLayout 进行总体布局2.在North 位置放置包含两个按钮( 上月和下月)的Panel3.在South 位置放置一个Label 用于显示当前年份和月份4.在Center 位置放置一个显示日历的Panel5.显示日历的Panel 设置7 行7 列的GridLayout 布局#xff0c;其中第1行…实训要求1.使用BorderLayout 进行总体布局2.在North 位置放置包含两个按钮( 上月和下月)的Panel3.在South 位置放置一个Label 用于显示当前年份和月份4.在Center 位置放置一个显示日历的Panel5.显示日历的Panel 设置7 行7 列的GridLayout 布局其中第1行放置7个按钮显示周“几”其他6 行放置42 个Label 用于显示期。6.启动程序时日历中默认显示当前月份的日历。7.点击“上月”和“下月”可翻看上个月和下个月的日历。8.程序运行结果如下图:代码CalendaBean.javaimport java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Calendar;import javax.swing.*;public class CalendaBean implements ActionListener {JLabel[] label;JLabel now;String[] day;int year 0, month 0;public void setYear(int year) {this.year year;}public void setMonth(int month) {this.month month;}public void actionPerformed(ActionEvent e) {String str e.getActionCommand();if (str.equals(lastmonth)) {month--;if (month 0) {month 12;year--;}}else if (str.equals(nextmonth)) {month;if (month 13) {month 1;year;}}now.setText(日历: year 年 month 月);String[] a getCalendar();for (int i 0; i a.length; i) {label[i].setText( a[i]);}}public String[] getCalendar() {String[] a new String[42];Calendar rili Calendar.getInstance();rili.set(year, month - 1, 1);int weekDay rili.get(Calendar.DAY_OF_WEEK) - 1;int day 0;if (month 1 || month 3 || month 5 || month 7 || month 8|| month 10 || month 12) {day 31;}if (month 4 || month 6 || month 9 || month 11) {day 30;}if (month 2) {if ((year % 4 0) (year % 100 ! 0) || (year % 400 0))day 29;elseday 28;}for (int i 0; i weekDay; i)a[i] ;for (int i weekDay, n 1; i weekDay day; i) {a[i] String.valueOf(n);n;}for (int i weekDay day; i a.length; i)a[i] ;return a;}}Test.javaimport java.awt.*;import java.awt.event.*;import javax.swing.*;public class Test extends JFrame {JButton b1, b2, b3, b4, b5, b6, b7, bx, by;CalendaBean cb new CalendaBean();JLabel[] label;JLabel now;public static void main(String[] args) {Test frame new Test();frame.setSize(500, 400);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setTitle(日历);frame.setVisible(true);}public Test() {int year, month;setLayout(new BorderLayout());JPanel pNorth new JPanel();cb new CalendaBean();cb.setYear(2017);cb.setMonth(11);String[] a cb.getCalendar();bx new JButton(上月);by new JButton(下月);bx.setActionCommand(lastmonth);by.setActionCommand(nextmonth);bx.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {cb.actionPerformed(e);}});by.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {cb.actionPerformed(e);}});pNorth.add(bx);pNorth.add(by);add(pNorth, BorderLayout.NORTH);GridLayout grid new GridLayout(7, 7);JPanel pCenter new JPanel();b1 new JButton(日);b2 new JButton(一);b3 new JButton(二);b4 new JButton(三);b5 new JButton(四);b6 new JButton(五);b7 new JButton(六);pCenter.add(b1);pCenter.add(b2);pCenter.add(b3);pCenter.add(b4);pCenter.add(b5);pCenter.add(b6);pCenter.add(b7);label new JLabel[42];for (int i 0; i 42; i) {label[i] new JLabel();pCenter.add(label[i]);}cb.label this.label;for (int i 0; i a.length; i) {label[i].setText( a[i]);}pCenter.setLayout(grid);add(pCenter, BorderLayout.CENTER);JPanel pSouth new JPanel();now new JLabel();now.setText(日历: cb.year 年 cb.month 月);cb.now now;pSouth.add(now);add(pSouth, BorderLayout.SOUTH);}}运行结果
