Question

How to use the clock as a random generator seed in Go

Answer 1

package main
 
import (
    "fmt"
    "math/rand"
    "time"
)
 
func main() {
    // Seed the random number generator using the current time
    rand.Seed(time.Now().UnixNano())
 
    // Generate a random number
    randomNumber := rand.Intn(100) // Random number between 0 and 99
    fmt.Println("Random number:", randomNumber)
    
    randomNumber = rand.Intn(100) // Random number between 0 and 99
    fmt.Println("Random number:", randomNumber)
}
 
 
/*
run:
 
Random number: 37
Random number: 51
 
*/

 

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Answer 2

package main

import (
    "fmt"
    "math/rand"
    "time"
)

func main() {
    rnd := rand.New(rand.NewSource(time.Now().UnixNano()))

    fmt.Println("Random number:", rnd.Intn(1000))
    fmt.Println("Random number:", rnd.Intn(1000))
}


/*
run:

Random number: 224
Random number: 551

*/

 

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