Go language provides inbuilt support for generating random numbers of the specified type with the help of a math/rand package. This package implements pseudo-random number generators. These random numbers are generated by a source and this source produces a deterministic sequence of values every time when the program run. And if you want to random numbers for security-sensitive work, then use the crypto/rand package.
You are allowed to generate a pseudo-random number of a 32-bit integer as an uint32 type from the default source with the help of the Uint32() function provided by the math/rand package. So, you need to add a math/rand package in your program with the help of the import keyword to access the Uint32() function.
Syntax:
func Uint32() uint32
Let us discuss this concept with the help of the given examples:
Example 1:
// Golang program to illustrate // how to get a random number package main import ( "fmt"
"math/rand"
) // Main function func main() { // Finding random numbers
// Using Uint32() function
res_1 := rand .Uint32()
res_2 := rand .Uint32()
res_3 := rand .Uint32()
// Displaying the result
fmt.Println( "Random Number 1: " , res_1)
fmt.Println( "Random Number 2: " , res_2)
fmt.Println( "Random Number 3: " , res_3)
} |
Output:
Random Number 1: 2596996162 Random Number 2: 4039455774 Random Number 3: 2854263694
Example 2:
// Golang program to illustrate the // use of the random numbers package main import ( "fmt"
"math/rand"
) // Function func uint32random(value_1, value_2 uint32) uint32 { return value_1 + value_2 + rand .Uint32()
} // Main function func main() { // Getting result from uint32random() function
res1 := uint32random(10, 3)
res2 := uint32random(44, 59)
res3 := uint32random(130, 50)
// Displaying results
fmt.Println( "Result 1: " , res1)
fmt.Println( "Result 2: " , res2)
fmt.Println( "Result 3: " , res3)
} |
Output:
Result 1: 2596996175 Result 2: 4039455877 Result 3: 2854263874