Home > Java > javaTutorial > body text

Why Does Setting the Seed in Java's Random Number Generator Result in Repeated Outputs?

DDD
Release: 2024-11-12 19:04:02
Original
396 people have browsed it

Why Does Setting the Seed in Java's Random Number Generator Result in Repeated Outputs?

Resolving the Issue of Repetitive Random Number Generation in Java with Set Seed

Issue Description:

Implementing a random number generator, developers may encounter a situation where calling the random number method, despite setting the seed, continuously generates the same output.

Code Example:

Consider the following code snippet:

Upon calling numbers.random(10) multiple times, it persistently returns an identical number, such as 5, instead of different outputs.

Resolution:

To ensure the generation of unique random numbers with a predefined seed, the Random() instance must be shared across the entire class. This can be achieved through the following code modification:

By initializing the randnum instance within the class constructor, it becomes a shared resource accessible to all methods within the class. This ensures that the seed is set only once, and subsequent calls to the random() method generate different random numbers.

The above is the detailed content of Why Does Setting the Seed in Java's Random Number Generator Result in Repeated Outputs?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template