GregorianCalendar類的hashCode()方法 (GregorianCalendar 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 returns the hash code for this GregorianCalendar.

  hashCode()方法用于返回此GregorianCalendar的哈希碼。

• hashCode() method is a non-static method, so 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()方法是一種非靜態方法，因此可以通過類對象進行訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• hashCode() method does not throw an exception at the time of returning hash code.

  hashCode()方法在返回哈希碼時不會引發異常。

Syntax:

句法：

    public int hashCode();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of this method is int, it gets hash code value for this GregorianCalendar object.

此方法的返回類型為int ，它獲取此GregorianCalendar對象的哈希碼值。

Example:

例：

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

Output

輸出量

ca.getTime(): Sat Feb 15 12:13:48 GMT 2020
ca.hashCode(): 1221342502

翻譯自: https://www.includehelp.com/java/gregoriancalendar-hashcode-method-with-example.aspx