日历类的get()方法 (Calendar Class get() method)

• get() method is available in java.util package.

  get()方法在java.util包中可用。

• get() method is used to retrieve the value of the given parameter fi(field) of this Calendar.

  get()方法用于检索此Calendar的给定参数fi(field)的值。

• get() method is a non-static method, it is accessible with the class object and if we try to access the method with the class name then we will get an error.

  get()方法是一种非静态方法，可通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• get() method may throw an exception at the time of returning the value of the given parameter.

  在返回给定参数的值时， get()方法可能会引发异常。

  ArrayIndexOutOfBoundsException: This exception may throw when the given field is not in a range.

  ArrayIndexOutOfBoundsException：如果给定字段不在范围内，则可能引发此异常。

Syntax:

句法：

    public int get(int fi);

Parameter(s):

参数：

• int fi – it represents the given Calendar field.

  int fi –代表给定的Calendar字段。

Return value:

返回值：

The return type of the method is int, it returns the given Calendar field value.

方法的返回类型为int ，它返回给定的Calendar字段值。

Example:

例：

// Java Program to demonstrate the example of
// int get() method of Calendar
import java.util.*;
public class GetOfCalendar {public static void main(String[] args) {// Instantiating a Calendar object
Calendar ca = Calendar.getInstance();
// Display current calendar
System.out.println("ca: " + ca.getTime());
// By using get() method is to return
// the value of the given calendar field
int year = ca.get(Calendar.YEAR);
int month = ca.get(Calendar.MONTH);
int day = ca.get(Calendar.DATE);
// Display Calendar Fields
System.out.println("ca.get(Calendar.YEAR): " + year);
System.out.println("ca.get(Calendar.MONTH): " + month);
System.out.println("ca.get(Calendar.DATE): " + day);
}
}

Output

输出量

ca: Fri Jan 24 12:47:42 GMT 2020
ca.get(Calendar.YEAR): 2020
ca.get(Calendar.MONTH): 0
ca.get(Calendar.DATE): 24

翻译自: https://www.includehelp.com/java/calendar-get-method-with-example.aspx