Creating random numbers

As a practical programming example, this section will talk about creating random numbers in Go. Random numbers have many uses, including the generation of good passwords as well as the creation of files with random data that can be used for testing other applications. However, bear in mind that usually programming languages generate pseudorandom numbers that approximate the properties of a true random number generator.

Go uses the math/rand package for generating random numbers and needs a seed to start producing random numbers. The seed is used for initializing the entire process and is extremely important because if you always start with the same seed, you will always get the same sequence of random numbers.

The random.go program has three main parts. The first part is the preamble of the program:

package main 
 
import ( 
   "fmt" 
   &quot...