生成非常大的随机数Java [英] Generating very large random numbers java

问题描述

我们如何在Java中生成非常大的随机数?我说的是10000位数吗?我知道我们必须使用BigInteger，但是我们该怎么做呢?做这样的事情最有效的方法是什么?请提供一个小例子.谢谢.

How can we generate very large random number in java? I am talking something like 10000 digits? I know we have to use BigInteger but how can we do this? What is the most efficent way of doing something like this? Please provide a small example. Thank you.

推荐答案

好吧，一种方法是转到 Random.org 并下载二进制随机文件之一.这些文件是由大气噪声生成的，因此它是非常随机的.我在国际象棋引擎中将它用于Zobrist键.

Well, one way is to go to Random.org and download a one of the binary random files. The files are generated from atmospheric noise, so it's very random. I used it for Zobrist keys in my chess engine.

或者，你可以去

BigInteger b = new BigInteger(256, new Random());

这将给您您想要的.在此示例中，一个由256位组成的BigInteger.

which will give you what you want. In this example, a BigInteger consisting of 256 bits.

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