import java.util.*;
import java.text.SimpleDateFormat;
import javax.swing.*;
public class DateTest{
public int getDate(String beginDate,String endDate) throws Exception{
SimpleDateFormat sim=new SimpleDateFormat("yyyy-mm-dd");
Date d1=sim.parse(beginDate);
Date d2=sim.parse(endDate);return (int)((d2.getTime()-d1.getTime())/(3600L*1000*24));
}
public static void main (String[] args) throws Exception{
String day1=JOptionPane.showInputDialog("请输入日期,例1990-10-10");
String day2=JOptionPane.showInputDialog("请输入第二个日期,例1990-10-10"); DateTest test=new DateTest();
System.out.println (test.getDate(day1,day2));
}
}可以计算出同一个月内的两个日期之间的天数,但是跨月(像2009-10-1和2009-11-1)就不行了,麻烦各位指出下错误,谢谢了~
import java.text.SimpleDateFormat;
import javax.swing.*;
public class DateTest{
public int getDate(String beginDate,String endDate) throws Exception{
SimpleDateFormat sim=new SimpleDateFormat("yyyy-mm-dd");
Date d1=sim.parse(beginDate);
Date d2=sim.parse(endDate);return (int)((d2.getTime()-d1.getTime())/(3600L*1000*24));
}
public static void main (String[] args) throws Exception{
String day1=JOptionPane.showInputDialog("请输入日期,例1990-10-10");
String day2=JOptionPane.showInputDialog("请输入第二个日期,例1990-10-10"); DateTest test=new DateTest();
System.out.println (test.getDate(day1,day2));
}
}可以计算出同一个月内的两个日期之间的天数,但是跨月(像2009-10-1和2009-11-1)就不行了,麻烦各位指出下错误,谢谢了~
import java.text.*; public class DisplayDateEveryday {
public static void main(String args[]){
display("2008-08-08", "2008-09-24");
}
public static void display(String dateFirst, String dateSecond){
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
try{
Date dateOne = dateFormat.parse(dateFirst);
Date dateTwo = dateFormat.parse(dateSecond);
Calendar calendar = Calendar.getInstance();
calendar.setTime(dateOne);
while(calendar.getTime().before(dateTwo)){
System.out.println(dateFormat.format(calendar.getTime()));
calendar.add(Calendar.DAY_OF_MONTH, 1);
}
}
catch(Exception e){
e.printStackTrace();
}
}
}
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/justinavril/archive/2008/09/06/2891266.aspx
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
retrun calendar.getTime();
)((getDate(endDate).getTime() - getDate(beginDate).getTime()) / 1000 / 3600 / 24) + 1;
public static long compareDays(String comparisonDay)throws ParseException
{
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date cal = new Date();// 当前日期
Date comparison=simpleDateFormat.parse(comparisonDay);
long days=(cal.getTime()-comparison.getTime())/(24*60*60*1000);
return days;
}