Java 中的 Calendar internalGet()方法，带示例
原文:https://www . geesforgeks . org/calendar-internal get-method-in-Java-with-examples/
Calendar 类中的internal get(intcalndr _ field)方法用于返回给定日历字段的值作为参数。 注:操作不涉及任何归一化或验证。
语法:
protected final int internalGet(int *calndr_field*)
参数:该方法取一个参数 calndr_field ，指的是要操作的日历字段。
返回值:该方法返回传递参数的值。
下面的程序说明了日历类的 internalGet()方法的工作: 例 1:
// Java code to illustrate
// internalGet() method
import java.util.*;
public class CalendarDemo
extends GregorianCalendar {
public static void main(String args[])
{
// Creating a new calendar
CalendarDemo calndr = new CalendarDemo();
// Displaying the Current date
System.out.println("The current date is: "
+ calndr.getTime());
// Getting the Month
System.out.println("Month is: "
+ calndr
.internalGet(MONTH));
// Getting the Year
System.out.println("Year is: "
+ calndr
.internalGet(YEAR));
}
}
Output:
The current date is: Wed Feb 20 16:11:36 UTC 2019
Month is: 1
Year is: 2019
例 2:
// Java code to illustrate
// internalGet() method
import java.util.*;
public class Calendar_Demo
extends GregorianCalendar {
public static void main(String args[])
{
// Creating a calendar object
Calendar_Demo calndr = new Calendar_Demo();
// Displaying the current date
System.out.println("Calendar: "
+ calndr
.getTime());
// Displaying the year
System.out.println("Year: "
+ calndr
.internalGet(YEAR));
// Displaying the month
System.out.println("Month: "
+ calndr
.internalGet(MONTH));
// Displaying other credentials
System.out.println("Day: "
+ calndr
.internalGet(DAY_OF_WEEK));
}
}
Output:
Calendar: Thu Feb 21 09:43:53 UTC 2019
Year: 2019
Month: 1
Day: 5
参考:https://docs . Oracle . com/javase/8/docs/API/Java/util/calendar . html # internal get-int-
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