Defer Statement

Delays the execution of a function until the surrounding function returns

The deferred calls arguments are evaluated immediately, but the function call is not executed until the surrounding functional call returns

package main
import "fmt"
func printName (str, string) {
    fmt.Println(str)
}
func printRollNo (rno int) {
    fmt.Println(rno)
}
func printAddress(adr string){
    fmt.Println(adr)
}
func main() {
    printName("Joe")
    defer printRollNo(23)
    printAddress("street-32")
}

>>> go run main.go
    Joe
    street-32
    23