java 怎样让一个日期累加，2010-12-16 累加到2010-12-30

java 怎样让一个日期累加，2010-12-16 累加到2010-12-30

用Calendar.set(Calendar.DATE, 1)就可以累加到12-30
import java.util.Calendar;
import java.util.Date;

public class CalendarAdd {

public static void main(String[] args) {

Calendar calendar = Calendar.getInstance();

calendar.set(Calendar.YEAR, 2012);
calendar.set(Calendar.MONTH, 12-1);//月份是从0开始的，所以要-1
calendar.set(Calendar.DATE, 16);

for(int i = 16; i <= 30; i++){
calendar.set(Calendar.DATE, i);
Date date = calendar.getTime();
System.out.println(date.toString());
}

}
}
-------------
Sun Dec 16 13:29:26 CST 2012
Mon Dec 17 13:29:26 CST 2012
Tue Dec 18 13:29:26 CST 2012
Wed Dec 19 13:29:26 CST 2012
Thu Dec 20 13:29:26 CST 2012
Fri Dec 21 13:29:26 CST 2012
Sat Dec 22 13:29:26 CST 2012
Sun Dec 23 13:29:26 CST 2012
Mon Dec 24 13:29:26 CST 2012
Tue Dec 25 13:29:26 CST 2012
Wed Dec 26 13:29:26 CST 2012
Thu Dec 27 13:29:26 CST 2012
Fri Dec 28 13:29:26 CST 2012
Sat Dec 29 13:29:26 CST 2012
Sun Dec 30 13:29:26 CST 2012

public class myclass { public static void main(string[] args) { int count= 0; system.out.println("各变量的值:"); for (int i = 1; i < 100; i++) { count+= i; system.out.println(i); if (count> 100) break; } system.out.println("累加值:"); system.out.println(count); } }

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