java.util.Calendar cal = java.util.Calendar.getInstance();
cal.add( cal.MONTH,1 );
cal.set(cal.DATE,1);
cal.add(cal.DATE,-1); java.text.SimpleDateFormat df = new java.text.SimpleDateFormat("yyyy-MM-dd");
System.out.println(df.format( cal.getTime() ));
cal.add( cal.MONTH,1 );
cal.set(cal.DATE,1);
cal.add(cal.DATE,-1); java.text.SimpleDateFormat df = new java.text.SimpleDateFormat("yyyy-MM-dd");
System.out.println(df.format( cal.getTime() ));
{
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd");
Date dt=null;
try
{
dt = format.parse(date);
}
catch (ParseException ex)
{
ex.printStackTrace();
}
if (dt==null) return null;
Calendar cal=Calendar.getInstance();
cal.setTime(dt);
int days=cal.getActualMaximum(Calendar.DAY_OF_MONTH);
cal.set(Calendar.DAY_OF_MONTH,days);
String result=format.format(cal.getTime());
System.out.println(""+result);
return result;
}调用:getLastDate("2005-10-11");