Java 中的 UUID 节点()方法，示例

原文:https://www . geesforgeks . org/uuid-node-method-in-Java-with-examples/

Java 中 UUID 类的节点()方法一般用来获取与这个 UUID 关联的节点值。

语法:

public long node()

参数:该方法不取任何参数。

返回值:这个方法返回一个长值，它是与这个 UUID 关联的节点值。

异常:这个方法抛出不支持操作异常如果这个 UUID 不是版本 1 的 UUID

下面的程序说明了 node()方法的工作原理:

程序 1:

// Java code to illustrate node() method

import java.util.*;

public class UUID_Demo {
    public static void main(String[] args)
    {

        // Creating two UUIDs
        UUID UUID_1
            = UUID
                  .fromString(
                      "58e0a7d7-eebc-11d8-9669-0800200c9a66");

        // Displaying the UUID
        System.out.println("UUID: "
                           + UUID_1);

        // Displaying the node value
        System.out.println("The node value is: "
                           + UUID_1.node());
    }
}

Output:

UUID: 58e0a7d7-eebc-11d8-9669-0800200c9a66
The node value is: 8796630719078

程序 2:

// Java code to illustrate node() method

import java.util.*;

public class UUID_Demo {
    public static void main(String[] args)
    {

        // Creating two UUIDs
        UUID UUID_1
            = UUID
                  .fromString(
                      "5fc03087-d265-11e7-b8c6-83e29cd24f4c");

        // Displaying the UUID
        System.out.println("UUID: "
                           + UUID_1);

        // Displaying the node Value
        System.out.println("The node value is: "
                           + UUID_1.node());
    }
}

Output:

UUID: 5fc03087-d265-11e7-b8c6-83e29cd24f4c
The node value is: 145009316876108

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