Java UUID nameUUIDFromBytes()用法及代碼示例

Java中UUID類的nameUUIDFromBytes()方法通常用於基於指定的字節數組檢索基於第三類型名稱的UUID。這用作靜態工廠方法。

用法:

public static UUID nameUUIDFromBytes(byte[] byte_name)

參數：此方法接受參數byte_name，該參數表示用於構造UUID的字節數組。

返回值：此方法返回從指定數組生成的UUID實例。

以下示例程序旨在說明nameUUIDFromBytes()方法的用法：

示例1:

// Java code to illustrate nameUUIDFromBytes() method 
  
import java.util.*; 
  
public class UUID_Demo { 
    public static void main(String[] args) 
    { 
  
        // Creating a byte array 
        byte[] byte_name 
            = { 50, 40, 30, 20, 10 }; 
  
        // Printing the byte[] 
        System.out.println("Specified byte array: "
                           + Arrays.toString(byte_name)); 
  
        // Creating an UUID from byte 
        UUID UU_ID 
            = UUID 
                  .nameUUIDFromBytes(byte_name); 
  
        // Displaying the UUID value 
        System.out.println("UUID value from byte: "
                           + UU_ID); 
    } 
}

輸出：

Specified byte array: [50, 40, 30, 20, 10]
UUID value from byte: d66541c4-a9db-3308-8c67-bbf87dc0df8b

示例2:

// Java code to illustrate nameUUIDFromBytes() method 
  
import java.util.*; 
  
public class UUID_Demo { 
    public static void main(String[] args) 
    { 
  
        // Creating a byte array 
        byte[] byte_name 
            = { 10, 15, 1, 45, 13, 20, 71 }; 
  
        // Printing the byte[] 
        System.out.println("Specified byte array: "
                           + Arrays.toString(byte_name)); 
  
        // Creating an UUID from byte 
        UUID UU_ID 
            = UUID 
                  .nameUUIDFromBytes(byte_name); 
  
        // Displaying the UUID value 
        System.out.println("UUID value from byte: "
                           + UU_ID); 
    } 
}

輸出：

Specified byte array: [10, 15, 1, 45, 13, 20, 71]
UUID value from byte: 15fe1179-e857-306b-ad67-b2388e006c8a

相關用法

注：本文由純淨天空篩選整理自Chinmoy Lenka大神的英文原創作品 UUID nameUUIDFromBytes() Method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。