package day14; import com.sun.scenario.effect.impl.sw.sse.SSEBlend_SRC_OUTPeer; import java.util.Calendar; import java.util.Scanner; /** * Created by admin on 2018/11/24. * * Calendar:它为特定瞬间与一组诸如 YEAR、MONTH、DAY_OF_MONTH、HOUR 等 日历字段之间的转换提供了一些方法,并为操作日历字段(例如获得下星期的日期)提供了一些方法。 * * public int get(int field):返回给定日历字段的值。日历类中的每个日历字段都是静态的成员变量,并且是int类型。 */ public class CalenderDemo { public static void main(String[] args) { Calendar rightNow = Calendar.getInstance(); //获取当前时间 int year = rightNow.get(Calendar.YEAR); int month = rightNow.get(Calendar.MONTH); int date = rightNow.get(Calendar.DATE); System.out.println(year + "-" + (month+1) + "-" + date); //获取5年后的今天的前五天 rightNow.add(Calendar.YEAR, 5); rightNow.add(Calendar.DATE, -5); int year2 = rightNow.get(Calendar.YEAR); int month2 = rightNow.get(Calendar.MONTH); int date2 = rightNow.get(Calendar.DATE); System.out.println(year2+ "-" + (month2+1) + "-" + date2); //计算每年的2月最后一天 Scanner sc = new Scanner(System.in); int year3 = sc.nextInt(); rightNow.set(year3, 2, 1); rightNow.add(Calendar.DATE, -1); System.out.println(rightNow.get(Calendar.DATE)); } }