Java date Calendar class get month and hour

package com.ecode.li.date;   import java.io.filenotfoundexception; import  java.io.fileoutputstream; import java.io.ioexception;  import java.io.objectoutputstream;  import java.util.Calendar; import java.util.Date;  import  java.util.gregoriancalendar;   public class calendartest {  /**   
 * calendar class use    *    *  @param    */ 
 public static void main (String[] args)  {   //  instantiation     calendar cale = calendar.getinstance ();   if  (cale 
Instanceof gregoriancalendar)  {    system.out.println ("This shows the creation of a GregorianCalendar class object, and the class is a subclass of the calendar abstract class     ");   }    //  from a   Get  Date  object in calendar  object    dAte date = cale.gettime ();   /*     *  will  Date  Object reacts to a  Calendar  object, calendar/gregoriancalendar  no constructors can accept     *  date  object   So we need to get an instance first and then set  Date  object     */    cale.settime (date);   //  Current year     int year = cale.get (calendar.year);    SYSTEM.OUT.PRINTLN (year);     //  current month  calendar.month starting from 0      int month =  (Cale.get (calendar.month))  + 1;   system.out.println
(month);     //  days of the current month: that is, the current day    int day_of_month =  Cale.get (calendar.day_of_month);        // Calendar.DAY_OF_MONTH  and   calendar.date  is equivalent to     int dates = cale.get (calendar.date);    System.oUT.PRINTLN (dates);    system.out.println (day_of_month);     //  Current time: HOUR_ Of_day-24-hour     int hour24 = cale.get (calendar.hour_of_day);    //  HOUR-12-hour     int hour12 = cale.get (calendar.hour);    System.out.println (HOUR24);    system.out.println (hour12);     //  current Score
    int minute = cale.get (Calendar.minute);   //  Current SEC     int second = cale.get (Calendar.second);    system.out.println (minute) ;    system.out.println (second);     //  week  calendar.day_of_ Week Digital (1~7) (Sunday ~ Saturday)         int day_of_week =  Cale.get (calendar.day_of _week)  - 1;   system.out.println (day_of_week);     //  first weeks of the current year    int week_of_year =  Cale.get (calendar.week_of_year);    system.out.println ( Week_of_year);     // //The number of weeks in the current month    // int week_of_month =  cale.get (calendar.week_of_month);   //         //  //the first few weeks of the current month     // int day_of_week_in_month = cale.get (Calendar.DAY_OF _week_in_month);   //         // //The first days of the current year  
   // int day_of_year = cale.get (calendar.day_of_year);  } }