uuid hashcode

UUID類hashCode()方法 (UUID 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 for this UUID.

  hashCode()方法用于檢索此UUID的哈希碼。

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

  hashCode()方法是一個非靜態方法，只能通過類對象訪問，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 the method is int, it returns this UUID hash code.

方法的返回類型為int ，它返回此UUID哈希碼。

Example:

例：

// Java program to demonstrate the example 
// of int hashCode() method of UUID 
import java.util.*;
public class HashCodeOfUUID {
public static void main(String[] args) {
// Instantiate UUID 
UUID uuid = UUID.fromString("46400000-8cc0-11bd-b43e-10d46e4ef14d");
// By using hashCode() method is to
// return the hash code of this UUID
int hc = uuid.hashCode();
// Display hashcode
System.out.println("uuid.hashCode(): " + hc);
}
}

Output

輸出量

uuid.hashCode(): 284225572

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

uuid hashcode