Java random number production algorithm example

Java provides math The random () function returns a random number of double type, and there is also the random class in the util package, which can generate double, int, float, long, bytes and other random numbers.

However, for some business requirements, these methods often need to be encapsulated. For example, a 32-bit 3DES algorithm key value is generated with a fixed factor.

Some encapsulation methods are provided below:

The operation effect is as follows:

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