计算满月的时间

import static java.lang.System.out;
//import java.io.*;不需要
import java.util.*;//java.util.Calendar
class FullMoons
{
static int DAY_IM=1000*60*60*24;
public static void main(String [] args)
{

Calendar c=Calendar.getInstance();
c.set(2004,0,7,15,40);//月份是以0为基的
long day1=c.getTimeInMillis();
for(int x=0;x<60;x++)
{

day1+=(DAY_IM*29.52);
c.setTimeInMillis(day1);
out.println(String.format("full moon on %tc",c));
}
}
}