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


public class Today {
    static Date date = new Date();//转换成YYYY年MM月DD天格式！
    static Format formatter = new SimpleDateFormat("y年M月dd日HH时mm分ss秒");    
    public static void main(String[]args) throws ParseException{
        System.out.println("转化的时间等于="+formatter.format(date));


//计算100天后的时间！

        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        calendar.set(Calendar.DAY_OF_YEAR, calendar.get(Calendar.DAY_OF_YEAR)+100);
        System.out.println(calendar);
        /*Calendar   now=new GregorianCalendar();
        now.add(Calendar.DATE,100);这也是一种转换时间的方法现在已经不用！ */
    }
}