Developing a UDP server

The purpose of the UDP server that is going to be developed in this section is returning random numbers between 1 and 1,000 to its UDP clients. The name of the program is UDPserver.go, and it is presented in four segments.

The first part of UDPserver.go is as follows:

package main 
 
import ( 
    "fmt" 
    "math/rand" 
    "net" 
    "os" 
    "strconv" 
    "strings" 
    "time" 
) 
 
func random(min, max int) int { 
    return rand.Intn(max-min) + min 
} 

The second segment of UDPserver.go is as follows:

func main() { 
    arguments := os.Args 
    if len(arguments) == 1 { 
        fmt.Println("Please provide a port number!") 
        return 
    } 
    PORT := ":" + arguments[1] 
 
    s, err := net.ResolveUDPAddr("udp4", PORT) 
    if err != nil { ...