Calendar 获取年月日

package com.calendar;import java.util.Calendar;import java.util.Date;import org.junit.Test;public class times {        @Test    public void Tezt(){                //获取 年月日  时分秒        Calendar cc = Calendar.getInstance();        cc.setTime(new Date());        System.out.PRintln(cc.get(Calendar.YEAR));        System.out.println(cc.get(Calendar.MONTH));        System.out.println(cc.get(Calendar.DAY_OF_MONTH));        System.out.println(cc.get(Calendar.HOUR_OF_DAY));        System.out.println(cc.get(Calendar.MINUTE));        System.out.println(cc.get(Calendar.SECOND));                //进行占位符输出  ---用于spring 定时器时间格式设置        final String cronExpressionTemplate = "%d %d %d %d %d %s %d";        Calendar c = Calendar.getInstance();        c.setTime(new Date());        int year = c.get(Calendar.YEAR);        int month = c.get(Calendar.MONTH) + 1;        int day = c.get(Calendar.DAY_OF_MONTH);        int hour = c.get(Calendar.HOUR_OF_DAY);        int min = c.get(Calendar.MINUTE);        int second = c.get(Calendar.SECOND);        String fh="?";        String a= String.format(cronExpressionTemplate, second, min, hour, day, month,fh,year);                System.out.println(a);                //比较两个时间的大小       Date datea=new Date();       Date dateb=new Date();       System.out.println(datea.getTime());       System.out.println(dateb.getTime());            }}