Go Language Generate Random Number (rand)

We can use the rand object to generate random numbers. We should provide some seeds for the rand object to make the generated numbers different. If we do not provide a seed, the compiler will always produce the same result.

Random Number Generation

Example

package main
import "fmt"
import (
	"math/rand
	//"time"
	"time"
)
func main() {
	fmt.Print(rand.Intn(100))　　//will produce 0 to100 between random integers
	fmt.Println()
	fmt.Print(rand.Float64())	//will produce 0 to1Random numbers between
	fmt.Println()
	rand.Seed(time.Now().Unix())　　//Random numbers generated by Seed
	myrand := random(1,　20)
	fmt.Println(myrand)
}
func random(min, max int) int {
	return rand.Intn(max　-　min)　+　min
}

Output:

81
0.9405090880450124
17