求Java 日历的小程序的源代码也不知道你具体需求是什么 , 以前改过一个日历程序,一共四个java类,放在同一个包里 。经测试可以运行 。
//Start.java
import java.awt.*;
import javax.swing.*;
class Start{
public static void main(String [] args){
DateFrame frame=new DateFrame();
frame.setLocationRelativeTo(frame);
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
//DateInfo.java
import java.util.*;
public class DateInfo{
private int mYear, mMonth;
private int mDayOfMonth, mFristWeek;
public DateInfo(int year, int month) throws DateException{
mYear = year;
if (month0 || month12){
throw (new DateException());
}
mMonth = month;
mDayOfMonth = getDayOfMonth(mYear, mMonth);
mFristWeek = getFristWeek(mYear, mMonth);
}
private int getDayOfMonth(int year, int month){
int[][] ary = {{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};
return (ary[isLeapYear(year)][month]);
}
private int isLeapYear(int year){
if (year % 4 == 0year % 100 != 0 ||year % 400 == 0){
return (1);
}
else{
return (0);
}
}
private int getFristWeek(int year, int month){
java.util.Calendar cal = Calendar.getInstance();
cal.set(year, month - 1, 1);
return (cal.get(Calendar.DAY_OF_WEEK) - 1);
}
public String toString(){
String str;
str = "\t\t" + mYear + "年" + mMonth + "月\n";
str += "日\t一\t二\t三\t四\t五\t六\n";
int i;
for (i = 1; i = mFristWeek; i++){
str += " \t";
}
for (int j = 1; j = mDayOfMonth; j++, i++){
str +=j+"\t";
if (i % 7 == 0){
str += "\n";
}
}
return (str);
}
}
//DateFrame.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Calendar;
class DateFrame extends JFrame implements Runnable{
Calendar date=Calendar.getInstance();
String[] str={"1","2","3","4","5","6","7","8","9","10","11","12"};
JLabel lblYear=new JLabel("年 ");
JLabel lblMonth=new JLabel("月 ");
JLabel lblDate=new JLabel("现在的时间是:");
JLabel lblShowDate=new JLabel();
// javax.swing.JTextField trxt =new JTextField(10);
// trxt.setHorizontalAlignment(JTextField.RIGHT);//设置文本从右边输入
JComboBox cboMonth=new JComboBox(str);
JComboBox cboYear=new JComboBox();
JTextArea txaShow=new JTextArea();
JPanel pnlNorth=new JPanel();
JPanel pnlSOUTH=new JPanel();
JButton btnShow=new JButton("显示");
JButton btnClose=new JButton("关闭");
JScrollPane jsp=new JScrollPane(txaShow);
Container c=this.getContentPane();
public DateFrame(){
Thread thread=new Thread(this);
thread.start();
this.setTitle("玩玩日历拉!!!");
this.setSize(300,260);
for (int i = 1990; i=2025; i++) {
cboYear.addItem(""+i);
}
cboYear.setSelectedItem(""+(date.get(Calendar.YEAR)));
cboMonth.setSelectedItem(""+(date.get(Calendar.MONTH)+1));
pnlNorth.add(cboYear);
txaShow.setTabSize(4);//设置tab键的距离
txaShow.setForeground(Color.GREEN);
pnlNorth.add(lblYear);
pnlNorth.add(cboMonth);
pnlNorth.add(lblMonth);
pnlNorth.add(lblDate);
pnlNorth.add(lblShowDate);
c.add(pnlNorth,BorderLayout.NORTH);
c.add(jsp);
pnlSOUTH.add(btnShow);
pnlSOUTH.add(btnClose);
c.add(pnlSOUTH,BorderLayout.SOUTH);
btnShow.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
int year=Integer.parseInt((String)cboYear.getSelectedItem());
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