import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;public class CompareTime { public static void main(String[] args) {
String t1 = "1990-1-1";
String t2 = "2000-1-1"; try {
System.out.println(CompareTime.getBetweenDays(t1, t2));
} catch (ParseException e) {
e.printStackTrace();
}
} public static int getBetweenDays(String t1, String t2)
throws ParseException {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
int betweenDays = 0;
Date d1 = format.parse(t1);
Date d2 = format.parse(t2);
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
c1.setTime(d1);
c2.setTime(d2);
// ä¿è¯ç¬¬äºä¸ªæ¶é´ä¸å®å¤§äºç¬¬ä¸ä¸ªæ¶é´
if (c1.after(c2)) {
c1 = c2;
c2.setTime(d1);
}
int betweenYears = c2.get(Calendar.YEAR) - c1.get(Calendar.YEAR);
betweenDays = c2.get(Calendar.DAY_OF_YEAR)
- c1.get(Calendar.DAY_OF_YEAR);
for (int i = 0; i < betweenYears; i++) {
c1.set(Calendar.YEAR, (c1.get(Calendar.YEAR) + 1));
betweenDays += c1.getMaximum(Calendar.DAY_OF_YEAR);
}
return betweenDays;
}} è¿ä¸ªåºè¯¥å¯ä»¥çï¼ä»¥åç¨è¿ï¼è¯è¯ç
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