When i ever execute a Go Console program it just executes in one second, I've been looking on Google, the Go website and Stackoverflow.
import (
"fmt"
)
func main() {
fmt.Println()
}
It closes immediately when i execute it.
EDIT 2 actually i wanted the program to permanently stay paused untill the user presses a button
4 Answers
You can pause the program for an arbitrarily long time by using time.Sleep(). For example:
package main
import ( "fmt"
"time"
)
func main() {
fmt.Println("Hello world!")
duration := time.Second
time.Sleep(duration)
}
To increase the duration arbitrarily you can do:
duration := time.Duration(10)*time.Second // Pause for 10 seconds
EDIT: Since the OP added additional constraints to the question the answer above no longer fits the bill. You can pause until the Enter key is pressed by creating a new buffer reader which waits to read the newline (\n) character.
package main
import ( "fmt"
"bufio"
"os"
)
func main() {
fmt.Println("Hello world!")
fmt.Print("Press 'Enter' to continue...")
bufio.NewReader(os.Stdin).ReadBytes('\n')
}
package main
import "fmt"
func main() {
fmt.Println("Press the Enter Key to terminate the console screen!")
fmt.Scanln() // wait for Enter Key
}
The easiest another way with minimal imports use this 2 lines :
var input string
fmt.Scanln(&input)
Adding this line at the end of the program, will pause the screen until user press the Enter Key, for example:
package main
import "fmt"
func main() {
fmt.Println("Press the Enter Key to terminate the console screen!")
var input string
fmt.Scanln(&input)
}
import "fmt"
func main() {
fmt.Scanln()
}
I use fmt.Scanln just one line.
