用Java计算两个日期之间的天数
import java.util.Calendar;import java.util.Date;import java.util.Scanner;public class NewDateDifference { public static void main(String[] args) { System.out.print("Insert first date: "); Scanner s = new Scanner(System.in); String[] eingabe1 = new String[3]; while (s.hasNext()) { int i = 0; insert1[i] = s.next(); if (!s.hasNext()) { s.close(); break; } i++; } System.out.print("Insert second date: "); Scanner t = new Scanner(System.in); String[] insert2 = new String[3]; while (t.hasNext()) { int i = 0; insert2[i] = t.next(); if (!t.hasNext()) { t.close(); break; } i++; } Calendar cal = Calendar.getInstance(); cal.set(Calendar.DAY_OF_MONTH, Integer.parseInt(insert1[0])); cal.set(Calendar.MONTH, Integer.parseInt(insert1[1])); cal.set(Calendar.YEAR, Integer.parseInt(insert1[2])); Date firstDate = cal.getTime(); cal.set(Calendar.DAY_OF_MONTH, Integer.parseInt(insert2[0])); cal.set(Calendar.MONTH, Integer.parseInt(insert2[1])); cal.set(Calendar.YEAR, Integer.parseInt(insert2[2])); Date secondDate = cal.getTime(); long diff = secondDate.getTime() - firstDate.getTime(); System.out.println ("Days: " + diff / 1000 / 60 / 60 / 24); }}
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