Calendar类

た入场券 2023-08-17 16:09 79阅读 0赞

Calendar类：是日历类，有很多静态方法。

import java.util.Calendar;
    import java.util.Date;
    public class Calendardemo {
        public static void main(String[] args) {
            //Calendar类的方法getTime()
            Calendar c1 = Calendar.getInstance();//不需要直接new 子类的对象,通过静态方法直接获取
            Date date = c1.getTime();//把日历对象,转成Date日期对象
            System.out.println(date);
            
            Calendar c2 = Calendar.getInstance();
            c2.add(Calendar.DAY_OF_MONTH, -300);// 让日历中的天数向后偏移300天
            int year = c2.get(Calendar.YEAR);//年
            int month = c2.get(Calendar.MONTH) + 1;//月，月份从零开始，所以月份要加1
            int day = c2.get(Calendar.DAY_OF_MONTH);//日
            System.out.println(year + "年" + month + "月" + day + "日");
            
            Calendar c3 = Calendar.getInstance();
            c3.set(2099, 4, 1);
            int year1 = c3.get(Calendar.YEAR);//年
            int month1 = c3.get(Calendar.MONTH) + 1;//月
            int day1 = c3.get(Calendar.DAY_OF_MONTH);//日
            System.out.println(year1 + "年" + month1 + "月" + day1 + "日");
            
            Calendar c4 = Calendar.getInstance();
            int year2 = c4.get(Calendar.YEAR);//年
            int month2 = c4.get(Calendar.MONTH) + 1;//月
            int day2 = c4.get(Calendar.DAY_OF_MONTH);//日
            System.out.println(year2 + "年" + month2 + "月" + day2 + "日");
            
            Calendar c5= Calendar.getInstance();
            System.out.println("年:" + c5.get(Calendar.YEAR));
            System.out.println("月:" + (c5.get(Calendar.MONTH) + 1));       
            System.out.println("日:" + c5.get(Calendar.DAY_OF_MONTH));
            System.out.println("时:" + c5.get(Calendar.HOUR_OF_DAY));
            System.out.println("分:" + c5.get(Calendar.MINUTE));
            System.out.println("秒:" + c5.get(Calendar.SECOND));
        }
    }

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转载于:https://www.cnblogs.com/zhai1997/p/11349929.html

[1392562-20190814093238219-1821923733.png]: /images/20230810/ca6ec0a505d14c6bade687663469e30f.png