Java使用图形用户界面万年历

使用图形用户界面。实现日期与星期的查询

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 classextends 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

使用图形用户界面。实现日期与星期的查询

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]);

使用图形用户界面。实现日期与星期的查询

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

{

使用图形用户界面。实现日期与星期的查询

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.setT …… 此处隐藏：3769字，全部文档内容请下载后查看。喜欢就下载吧 ……