Java中JTable的更新。万年历
我用java写了一个万年历。。。一个弹出对话框的形式，在界面内我加了几个按钮，我想要的结果是按一次按钮可以切换月份，切换了之后可以显示这个月的月历，但是我现在按了按钮之后，表中显示的内容不能更新。还有怎样设置表格单元不能编辑。 JAVA jtable 更新页面 设置表格单元不可编辑 --------------------编程问答-------------------- import java.util.Calendar;public class CalendarBean { // 日期类
int year ,month , nextDay;
Calendar calendar = Calendar.getInstance();
public void setYear(int year){
this.year = year;
}
public void setMonth(int month){
this.month = month;
}
// 根据年月,在二维表格中按真实顺序排位
public String[][] getCalendar(){
String a[][] = new String[6][7];
Calendar 日历 = Calendar.getInstance();
日历.set(year,month-1,1);
int 星期几 = 日历.get(Calendar.DAY_OF_WEEK)-1;
int day = 0;
// 判断一个月有多少天
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;
}else{
day = 28;
}
}
// 二维数组依次排序
nextDay = 1;
for(int k=0; k<6; k++){
if(k == 0){
for(int j=星期几; j<7; j++){
a[k][j] = "" + nextDay;
nextDay++;
}
}else{
for(int j=0; j<7 && nextDay<=day; j++){
a[k][j] = "" + nextDay;
nextDay++;
}
}
}
return a; // 返回二维当前年月数组
}
}
--------------------编程问答-------------------- import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Calendar;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.plaf.basic.BasicButtonListener;
public class SelectetimeTest extends JDialog implements ActionListener {
/**
*
*/
private static final long serialVersionUID = 1L;
private JPanel p;
private JScrollPane sp;
private JTextField tfyear, tfmonth;
private JLabel lbyear, lbmonth;
private JTable tbtime;
private JButton button1, button2, button3;
private Object cells[][];
private String[] cocumnNames = {"日", "一", "二", "三", "四", "五", "六"};
private JRadioButton timequery, linequery;
private JTextField from, arrivel, leavetime;
private int inputMonth = 0, inputYear = 0;
private String strmonth;
private Calendar calendar;
private ListSelectionModel selectionMode;
private int counter = 0;
public SelectetimeTest(JFrame f) {
//初始化信息
super( f, "选择日期", true);
p = new JPanel();
CalendarBean calendarbean = new CalendarBean();
calendar = Calendar.getInstance();
inputYear = calendar.get(Calendar.YEAR);
inputMonth = calendar.get(Calendar.MONTH) + 1;
calendarbean.setYear(inputYear);
calendarbean.setMonth(inputMonth);
cells = calendarbean.getCalendar();
button1 = new JButton("<<");
button2 = new JButton("今天");
button3 = new JButton(">>");
tfyear = new JTextField(4);
tfyear.setText(inputYear + "");
tfmonth = new JTextField(2);
tfmonth.setText(inputMonth + "");
lbyear = new JLabel("年");
lbmonth = new JLabel("月");
tbtime = new JTable(cells, cocumnNames);
sp = new JScrollPane(tbtime);
tbtime.setCellSelectionEnabled(true);
tbtime.isCellEditable(7, 5);
//设置组件坐标及大小
button1.addActionListener(this);
button2.addActionListener(this);
button3.addActionListener(this);
//添加信息到面板
p.add(button1);
p.add(button2);
p.add(button3);
p.add(tfyear);
p.add(lbyear);
p.add(tfmonth);
p.add(lbmonth);
//设置窗体
this.add(p, BorderLayout.NORTH);
this.add(sp);
this.setSize(300, 200);
this.setLocation(800, 350);
this.setResizable(false);
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
//如果信号源在第一个选择键上
if (source == button3) {
counter++;
inputMonth = (calendar.get(Calendar.MONTH) + 1) + counter;
if (inputMonth > 12) {
if (inputMonth % 12 == 0) {
inputYear = calendar.get(Calendar.YEAR) + ((inputMonth / 12) - 1);
inputMonth = 12;
} else {
inputYear = calendar.get(Calendar.YEAR) + (inputMonth / 12);
inputMonth = inputMonth % 12;
}
}
CalendarBean calendarbean = new CalendarBean();
calendarbean.setYear(inputYear);
calendarbean.setMonth(inputMonth);
cells = calendarbean.getCalendar();
tfyear.setText(inputYear + "");
tfmonth.setText(inputMonth + "");
tbtime.revalidate();
}
//如果信号源在第二个选择键上
/*if (source == selecte2) {
AddLine add = new AddLine();
add.setVisible(true);
this.setVisible(false);
}*/
//如果信号源在第三个选择键上
if (source == button2) {
inputYear = calendar.get(Calendar.YEAR);
inputMonth = calendar.get(Calendar.MONTH) + 1;
CalendarBean calendarbean = new CalendarBean();
calendarbean.setYear(inputYear);
calendarbean.setMonth(inputMonth);
cells = calendarbean.getCalendar();
tfyear.setText(inputYear + "");
tfmonth.setText(inputMonth + "");
tbtime = new JTable(cells, cocumnNames);
}
//如果信号源在更改信息上
if (source == button1) {
counter--;
inputMonth = (calendar.get(Calendar.MONTH) + 1) + counter;
if (0 < inputMonth && inputMonth < 12) {
inputYear = calendar.get(Calendar.YEAR);
inputMonth = inputMonth % 12;
} else if (inputMonth == 0){
inputYear = calendar.get(Calendar.YEAR) - 1;
inputMonth = 12;
} else {
if (inputMonth % 12 == 0) {
inputYear = calendar.get(Calendar.YEAR) - (-(inputMonth / 12) + 1);
inputMonth = 12;
} else {
inputYear = calendar.get(Calendar.YEAR) - (-(inputMonth / 12) + 1);
inputMonth =12 - (-(inputMonth % 12));
}
}
CalendarBean calendarbean = new CalendarBean();
calendarbean.setYear(inputYear);
calendarbean.setMonth(inputMonth);
cells = calendarbean.getCalendar();
tfyear.setText(inputYear + "");
tfmonth.setText(inputMonth + "");
tbtime = new JTable(cells, cocumnNames);
}
//如果信号源在退出登录上
}
public static void main(String [] args) {
JFrame f1 = null;
SelectetimeTest selectetime = new SelectetimeTest(f1);
selectetime.setVisible(true);
}
}
上面是我的代码，麻烦各位给看下。。。老师要让交作业了。。。
补充：Java , Java SE
