hello world in go

To print "Hello, world!" in Go, you can use the fmt package which provides a convenient way to handle input and output operations. Here's the Hello World program in Go:

main.go
package main

import "fmt"

func main() {
    fmt.Println("Hello, world!")
}
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Here's how the above program works:

• package main tells Go that this is an executable program, rather than a library.
• import "fmt" imports the fmt package, which contains functions for printing formatted output and reading input.
• func main is the entry point of the program. It's the function that gets executed when you run the program.
• fmt.Println("Hello, world!") prints "Hello, world!" to the console. Println adds a newline character at the end of the string so that the next output will appear on the next line of the console.

To run this program, save it to a file with a .go extension, and then run go run <filename.go> in the terminal. The output should be "Hello, world!" printed to the console.