Summary - Go basics
- Go course
- Beginner
- Lesson 6/90
- 4 min
Combine package, fmt and comments to write your first Go program.
Summary - Go basics
In this section you learned the building blocks of Go:
- package main for an executable program
- import "fmt" to bring in a package
- func main() as the entry point
- fmt.Println to print to the screen
- // and /* */ for comments
Now you will combine these concepts by writing a small program.
Practice Write a welcome message
Add a fmt.Println line inside the empty main. The output must be Welcome to Go.
Starter code
package main
import "fmt"
func main() {
// buraya yaz
}Sample solution
package main
import "fmt"
func main() {
fmt.Println("Welcome to Go")
}Expected output
Go'ya hoş geldin
Practice Commented welcome
Add a // comment to the program and produce the output Let us start with fmt.Println.
Starter code
package main
import "fmt"
func main() {
return
}Sample solution
package main
import "fmt"
func main() {
// Welcome message
fmt.Println("Let us start")
}Expected output
Haydi başlayalım
Questions and answers
Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.
1 Program skeleton
Question
package main
import "fmt"
func ____() {
fmt.Println("Ready")
}
Answer
package main
import "fmt"
func main() {
fmt.Println("Ready")
}Explanation: The main function is the entry point.
2 Match the section concepts
| Term | Meaning |
|---|---|
package main |
Executable package |
import "fmt" |
Package import |
func main() |
Entry point |
fmt.Println |
Prints to screen |