Java使用图形用户界面万年历

9、万年历 要求： 使用图形用户界面。 实现日期与星期的查询 import java.awt.*; import java.awt.event.*; import java.text.*; import java.util.*; import javax.swing.*; import javax.swing.table.*; public class test1 extends JFrame implements ActionListener { private Calendar cal= Calendar.getInstance(); private String [] str = {"星期一", "星期二", "星期三", "星期四", "星期五", "星期六", "星期日"}; private DefaultTableModel dtm = new DefaultTableModel(null,str); private JTable table = new JTable(dtm); //装日期的表格 private JScrollPane sp = new JScrollPane(table); private JButton bLastYear = new JButton("上一年"); private JButton bNextYear = new JButton("下一年"); private JButton bLastMonth = new JButton("上月"); private JButton bNextMonth = new JButton("下月"); private JTextField Year = new JTextField(4);//jtfYear年份显示和输入文本 private JLabel jla=new JLabel("年"); private JTextField month = new JTextField(4); private JLabel jla1=new JLabel("月"); private JTextField jtfMonth = new JTextField(2);//jtfMonth月份显示文本框 private JPanel p1 = new JPanel(); //装入控制日期按钮的模块 private JPanel p2 = new JPanel(); private JPanel p3 = new JPanel(new BorderLayout()); private JPanel p4 = new JPanel(new GridLayout(2,1)); private JPanel p5 = new JPanel(new BorderLayout()); private JLabel l = new JLabel("文本框中可直接键入要查找的年份,以提高查询效率"); private JLabel lt = new JLabel(); private int lastTime;

public test1() { super("万年历"); //框架命名 this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//窗口关闭函数 this.getContentPane().setLayout(new BorderLayout(10, 0));

table.setGridColor(Color.GRAY); //星期之间的网格线是灰色的 table.setColumnSelectionAllowed(true); table.setSelectionBackground(Color.BLACK);//当选定某一天时这一天背景黑色 table.setSelectionForeground(Color.GREEN);//选定的日期字体是绿色的 table.setBackground(new Color(184,207,229));//日期显示表格颜色浅蓝色 table.setFont(new Font("黑体",Font.BOLD,24));//日期数字字体格式 table.setRowHeight(30);//表格的高度

Year.addActionListener(this);//可输入年份的文本框 month.addActionListener(this);//可输入年份的文本框 //为各个按钮添加监听函数 bLastYear.addActionListener(this); bNextYear.addActionListener(this); bLastMonth.addActionListener(this); bNextMonth.addActionListener(this); //将按钮添加到Jpanel上

p1.add(bLastYear); p1.add(Year);//年份输入文本框 p1.add(jla); p1.add(month);//年份输入文本框 p1.add(jla1); p1.add(bNextYear); p1.add(bLastMonth); p1.add(jtfMonth); p1.add(bNextMonth); p3.add(p2, BorderLayout.SOUTH); p4.add(l); p4.add(lt); p5.add(p4, BorderLayout.SOUTH); p5.add(sp, BorderLayout.CENTER); p5.add(p1, BorderLayout.NORTH);

this.getContentPane().add(p5, BorderLayout.CENTER); this.getContentPane().add(p3, BorderLayout.EAST);

String [] strDate = DateFormat.getDateInstance().format(new Date()).split("-");//获得日期 cal.set(Integer.parseInt(strDate[0]), Integer.parseInt(strDate[1])-1, 0); showCalendar(Integer.parseInt(strDate[0]), Integer.parseInt(strDate[1]), cal); jtfMonth.setEditable(false);//设置月份的文本框为不可编辑 Year.setText(strDate[0]); month.setText(strDate[1]); jtfMonth.setText(strDate[1]); new Timer(lt).start(); this.setBounds(200,200,600,320); this.setResizable(false); this.setVisible(true); }

public void showCalendar(int localYear, int localMonth, Calendar cld) { int Days = getDaysOfMonth(localYear, localMonth) + cld.get(Calendar.DAY_OF_WEEK) - 2; Object [] ai = new Object[7]; lastTime = 0; for (int i = cld.get(Calendar.DAY_OF_WEEK)-1; i <= Days; i++) { ai[i%7] = String.valueOf(i-(cld.get(Calendar.DAY_OF_WEEK)-2)); if (i%7 == 6) { dtm.addRow(ai); ai = new Object[7]; lastTime++; } } dtm.addRow(ai); }

public int getDaysOfMonth(int year, int Month) //显示所选月份的天数 { if(Month == 1 || Month == 3 || Month == 5 || Month == 7 || Month == 8 || Month == 10 || Month == 12) { return 31; } if(Month == 4 || Month == 6 || Month == 9 || Month == 11) { return 30; } if(year%4 == 0 && year%100 != 0 || year%400 == 0)//闰年 { return 29; } else { return 28; } }

public void actionPerformed(ActionEvent e) { if(e.getSource() == Year || e.getSource() == bLastYear || e.getSource() == bNextYear || e.getSource() == bLastMonth || e.getSource() == bNextMonth) { int m, y; try//控制输入的年份正确，异常控制 { if (Year.getText().length() != 4) { throw new NumberFormatException(); } y = Integer.parseInt(Year.getText()); m = Integer.parseInt(jtfMonth.getText()); } catch (NumberFormatException ex) { JOptionPane.showMessageDialog(this, "请输入4位0-9的数字！", "年份有误", JOptionPane.ERROR_MESSAGE); return; } for (int i = 0; i < lastTime+1; i++){ dtm.removeRow(0);} if(e.getSource() == bLastYear){ Year.setText(String.valueOf(--y)); } if(e.getSource() == bNextYear){Year.setText(String.valueOf(++y)); } if(e.getSource() == bLastMonth) { if(m == 1)