package main

import "encoding/json"
import "fmt"

// struct members must be public to be marshalled (start with capital letter)
type Abc struct {
    X string   `json:"x"`
    Y string   `json:"y"`
}

func main() {

    res2D := Abc {
        X:   "tom",
        Y: "the best",}

    mesg, _ := json.Marshal(res2D)

    fmt.Printf("%V\n",res2D)
    fmt.Println(string(mesg))
  
}