java生成随机数的方法JavaUUIDrandomUUID（）⽅法与⽰例
UUID类randomUUID()⽅法 (UUID Class randomUUID() method)
randomUUID() method is available in java.util package.
randomUUID() method
randomUUID()⽅法 。
java.util软件包中提供了randomUUID()⽅法
randomUUID() method is used to return type 4 UUID and it constructed by pseudo-random number generator.
randomUUID() method
randomUUID()⽅法⽤于返回类型4 UUID，它由伪随机数⽣成器构造。
randomUUID()⽅法
randomUUID() method is a static method, it is accessible with the class name and if we try to access the method with randomUUID() method
the class object then we will not get an error.
randomUUID()⽅法是⼀个静态⽅法，可以使⽤类名进⾏访问，如果尝试使⽤类对象访问该⽅法，则不会出错。
randomUUID()⽅法
randomUUID() method does not throw an exception at the time of generating random UUID.
randomUUID() method
在⽣成随机UUID时， randomUUID()⽅法
randomUUID()⽅法不会引发异常。
Syntax:
句法：
public UUID randomUUID();
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 UUID, it returns type 4 UUID.
该⽅法的返回类型为UUID ，它返回类型4 UUID。
Example:
例：
/
/ Java program to demonstrate the example
// of UUID randomUUID() method of UUID
import java.util.*;
public class RandomUUIDOfUUID {
public static void main(String[] args) {
// Instantiate UUID
UUID uuid = UUID.fromString("46400000-8cc0-11bd-b43e-10d46e4ef14d");
// By using randomUUID() method is to
// return the random UUID
UUID random_uuid = uuid.randomUUID();
// Display random_uuid Value
System.out.println("uuid.randomUUID(): " + random_uuid);
}
}
Output
输出量
uuid.randomUUID(): 91c606f6-d87f-4dd1-80b2-414b6ac38ad0

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。