日历类hashCode()方法 (Calendar Class hashCode() method)

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

  hashCode()方法在java.util包中可用。

• hashCode() method is used to retrieve the hash code value of this Calendar.

  hashCode()方法用于检索此Calendar的哈希码值。

• hashCode() 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.

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

• hashCode() method does not throw an exception at the time of returning hashcode of this Calendar.

  hashCode()方法在返回此Calendar的哈希码时不会引发异常。

Syntax:

句法：

    public int hashCode();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is int, it returns this Calendar hash code value.

方法的返回类型为int ，它返回此Calendar哈希码值。

Example:

例：

// Java Program to demonstrate the example of
// int hashCode() method of Calendar
import java.util.*;
public class HashCode {public static void main(String args[]) {// Instantiating a Calendar object
Calendar ca = Calendar.getInstance();
System.out.println("ca.getTime(): " + ca.getTime());
// By using hashCode() method is to
// return the hash code of this Calendar
int hc = ca.hashCode();
//Display hash code of this Calendar
System.out.println("ca.hashCode(): " + hc);
}
}

Output

输出量

ca.getTime(): Mon Jan 27 08:24:31 GMT 2020
ca.hashCode(): -434964174

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