Java Calendar complete() 方法

2024年11月3日 | 阅读 2 分钟

java Calendar 类的 complete() 方法是一个 protected 方法。该方法可以在其类内的任何子类中调用，但不能被不相关的类调用。它会填充 Calendar 字段中任何未设置的字段。会调用 ComputeTime() 和 ComputeField() 来计算时间值和所有 Calendar 字段值。

语法

参数

不适用

返回值

此方法不返回任何值。

抛出

不适用

示例 1

import java.util.*;
public class CalendarCompleteExample1 extends GregorianCalendar {
   public static void main(String[] args) {
      // create a new calendar
      CalendarCompleteExample1 cal = new CalendarCompleteExample1();
      // print the current date
      System.out.println("The current date is : " + cal.getTime());
      // clear the calendar
      cal.clear();
      // set a new year and call complete()
      cal.set(GregorianCalendar.YEAR, 1998);
      //protected method
      cal.complete();
  // print the current date
      System.out.println("New date is : " + cal.getTime());
   }
}

输出

The current date is : Tue Jul 31 19:56:09 PDT 2018
New date is : Thu Jan 01 00:00:00 PST 1998

示例 2

import java.util.*;
public class CalendarCompleteExample2 extends GregorianCalendar {
   public static void main(String[] args) {
      // create a new calendar
      CalendarCompleteExample2 cal = new CalendarCompleteExample2();
      // print the current date
      System.out.println("The current date is : " + cal.getTime());
      // clear the calendar
      cal.clear();
      // set a new year and call complete()
      cal.set(GregorianCalendar.MONTH, 10);
      //protected method
      cal.complete();
      // print the current date
      System.out.println("New Month is : " + cal.getTime());
   }
}

输出

The current date is : Tue Jul 31 19:56:28 PDT 2018
New Month is : Sun Nov 01 00:00:00 PST 1970

示例 3

import java.util.*;
public class CalendarCompleteExample3 extends GregorianCalendar {
   public static void main(String[] args) {
      // create a new calendar
      CalendarCompleteExample3 cal = new CalendarCompleteExample3();
      // print the current date
      System.out.println("The current date is : " + cal.getTime());

      // clear the calendar
      cal.clear();
      // set a new year and call complete()
      cal.set(GregorianCalendar.DAY_OF_MONTH, 23);
      //protected method
      cal.complete();
      // print the current date
      System.out.println("New day is : " + cal.getTime());
   }
}

输出

The current date is : Tue Jul 31 19:57:33 PDT 2018
New day is : Fri Jan 23 00:00:00 PST 1970

示例 4

import java.util.*;
public class CalendarCompleteExample4 extends GregorianCalendar {
   public static void main(String[] args) {
      // create a new calendar
      CalendarCompleteExample4 cal = new CalendarCompleteExample4();
      // print the current date
      System.out.println("The current date is : " + cal.getTime());
      // clear the calendar
      cal.clear();
      // set a new year and call complete()
      cal.set(GregorianCalendar.DAY_OF_MONTH, 23);
      cal.set(GregorianCalendar.MONTH, 9);
      cal.set(GregorianCalendar.YEAR, 1996);
      cal.set(GregorianCalendar.HOUR, 22);
       cal.set(GregorianCalendar.MINUTE, 1);
        cal.set(GregorianCalendar.SECOND, 0);
      //protected method
      cal.complete();
      // print the current date
      System.out.println("New DATE is : " + cal.getTime());
   }
}

输出

The current date is : Tue Jul 31 20:01:19 PDT 2018
New DATE is : Wed Oct 23 22:01:00 PDT 1996

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Java Calendar complete() 方法

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Java Calendar complete() 方法

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示例 1

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