package test;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class T {
public static void main(String[] args) {
Date date = new Date();
System.out.println((new SimpleDateFormat("yyyy-MM-dd")).format(date));
Calendar cal = Calendar.getInstance();
cal.setTime(date);
//加天
cal.add(Calendar.DATE, 100);
System.out.println((new SimpleDateFormat("yyyy-MM-dd")).format(cal.getTime()));
//减天
cal.add(Calendar.DATE, -100);
System.out.println((new SimpleDateFormat("yyyy-MM-dd")).format(cal.getTime()));
}
}
http://www.cnblogs.com/cyjch/archive/2012/03/12/2392070.html
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