Calender设置固定时间遇到的问题

在使用Calender获取实例，设置成UTC时区时，发现比我们常规的月份多了一个月：

示例代码如下：

Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
calendar.set(2016, 9, 11, 16, 0, 0);
System.out.println(calendar.getTime());

打印的结果为：

Wed Oct 12 00:00:00 CST 2016

即2016-10-12 00：00：00，比我们设置的月份多了一个月。

我们来看下calender中set的源码：

/**
* Sets the values for the fields <code>YEAR</code>, <code>MONTH</code>,
* <code>DAY_OF_MONTH</code>, <code>HOUR_OF_DAY</code>, <code>MINUTE</code>, and
* <code>SECOND</code>.
* Previous values of other fields are retained.  If this is not desired,
* call {@link #clear()} first.
*
* @param year the value used to set the <code>YEAR</code> calendar field.
* @param month the value used to set the <code>MONTH</code> calendar field.
* Month value is 0-based. e.g., 0 for January.
* @param date the value used to set the <code>DAY_OF_MONTH</code> calendar field.
* @param hourOfDay the value used to set the <code>HOUR_OF_DAY</code> calendar field.
* @param minute the value used to set the <code>MINUTE</code> calendar field.
* @param second the value used to set the <code>SECOND</code> calendar field.
* @see #set(int,int)
* @see #set(int,int,int)
* @see #set(int,int,int,int,int)
*/
public final void set(int year, int month, int date, int hourOfDay, int minute,
int second)
{
set(YEAR, year);
set(MONTH, month);
set(DATE, date);
set(HOUR_OF_DAY, hourOfDay);
set(MINUTE, minute);
set(SECOND, second);
}

看上面代码中飘红的部分，一月份是从0开始的~显而易见，需要将月份-1