新建 文本文档.txt

将两个date型的时间转成string型与计算其时间的差

import java.text.ParseException; 
import java.text.SimpleDateFormat; 
import java.util.Date; 

class Test2 { 
public static String getDate(){ 
SimpleDateFormat ft = new SimpleDateFormat("yyyy/MM/dd"); 
Date dd = new Date(); 
return ft.format(dd); 
} 
public static long getQuot(String time1, String time2){ 
long quot = 0; 
SimpleDateFormat ft = new SimpleDateFormat("yyyy/MM/dd"); 
try { 
Date date1 = ft.parse( time1 ); 
Date date2 = ft.parse( time2 ); 
quot = date1.getTime() - date2.getTime(); 
quot = quot / 1000 / 60 / 60 / 24; 
} catch (ParseException e) { 
e.printStackTrace(); 
} 
return quot; 
} 
public static void main(String[] args) throws Exception { 
String date1 = "2008/8/8"; 
String date2 = getDate(); 
long day = getQuot(date1,date2); 
System.out.println( "距离 "+date1+" 还有 "+day+" 天" ); 
} 
}