A brief example of how we can use principle of encapsulation in Go

details.go

package details

import (
    fmt
    person "github.com/nikzayn/encapsulation/user"
)

func main() {
    fmt.Println(person.GetDateOfBirth()) // 1989
    fmt.Println(person.getFoodStatus())  // Not declared by package because it is small caps
}

person.go

package person

import (
  "fmt"
  "time"
)

type Person struct {
  Name          string
  Age           int
  DoesShareFood bool
}

func (p *Person) GetDateOfBirth() int {
    return time.Now().Year() - p.Age
}

func (p *Person) getFoodStatus() bool {
    return p.DoesShareFood
}

func main() {
    person := Person {
        Name: "Joey",
        Age: 33,
        DoesShareFood: No,
    }
    
    fmt.Println(person.GetDateOfBirth()) // 1989
    fmt.Println(person.getFoodStatus())  // No
    
}