Question

How to generate random numbers in Go

Answer 1

package main
 
import (
    "fmt"
    "math/rand"
    "time"
)
   
func main() {
    rand.Seed(time.Now().UnixNano())
     
    for i := 0; i < 20; i++ {
        fmt.Println(rand.Intn(10))
    }
}
  
  
  
/*
run:
  
5
1
6
6
5
5
1
1
8
5
0
2
3
3
9
1
1
8
0
8
  
*/

 

70+ SQL courses for beginners and professionals

Answer 2

package main
 
import (
    "fmt"
    "math/rand"
    "time"
)
   
func randomBetweenRange(min, max int) int {
	return rand.Intn(max - min + 1) + min
}

func main() {
    rand.Seed(time.Now().UnixNano())
     
    for i := 0; i < 20; i++ {
        fmt.Println(randomBetweenRange(25, 33))
    }
}
  
  
  
  
  
/*
run:
  
33
26
26
27
31
32
26
25
32
28
30
28
32
25
27
26
25
28
30
27
  
*/

 

70+ SQL courses for beginners and professionals