Calendar.DAY_OF_MONTH存放什么数据_day of month=5啥意思-优快云博客

本文解释了Java中Calendar.DAY_OF_MONTH字段的意义，并通过示例代码展示了如何使用它来获取当前日期在一个月中的具体日期。

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Calendar.DAY_OF_MONTH存放什么数据 [问题点数：20分]

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csiyou

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楼主发表于： 2013-03-26 20:45:36

为什么输出的是5？为什么不是直接存放日期

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关注 AARON7744 -AJ- 本版等级：	#1 得分：0 回复于： 2013-03-26 20:53:08 获取当月中天数的最大值，即当月的日期数。存放日期用Calendar.DATE
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关注 valid303 valid303 本版等级：	#2 得分：0 回复于： 2013-03-26 21:27:17 5？那是Calendar.DAY_OF_MONTH=5吧那是个常量
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#3 得分：0 回复于： 2013-03-28 11:04:55

请查看API的Calendar类的定义，public final static int DAY_OF_MONTH = 5;
Calendar.DAY_OF_MONTH是定义的一个成员常量，值就是5，标识的当前日期是本月的几天；
代码示例：
package com.zl.test.basepoint.time;

import java.util.Calendar;
import java.util.GregorianCalendar;

public class DateDemo {

/**
* @param args
*/
public static void testDAY_OF_MONTH() {
Calendar cal = new GregorianCalendar(); //创建当前默认日期对象，代码编写时间为2013-3-28
System.out.println(cal.get(Calendar.YEAR) + "年" + (cal.get(Calendar.MONTH)+1) + "月" + cal.get(Calendar.DAY_OF_MONTH) + "日");
System.out.println(cal.get(Calendar.DAY_OF_MONTH)); //输出当前日期对象cal是当前月份的第几天
}
public static void main(String[] args) {
// TODO Auto-generated method stub
DateDemo.testDAY_OF_MONTH();
//输出结果：
//2013年3月28日
//28
}

}