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main.go
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main.go
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// Example code for Chapter 2.4 from "Build Web Application with Golang"
// Purpose: Another example of embedded fields
package main
import "fmt"
type Skills []string
type Human struct {
name string
age int
weight int
}
type Student struct {
Human // struct as embedded field
Skills // string slice as embedded field
int // built-in type as embedded field
speciality string
}
func main() {
// initialize Student Jane
jane := Student{Human: Human{"Jane", 35, 100}, speciality: "Biology"}
// access fields
fmt.Println("Her name is ", jane.name)
fmt.Println("Her age is ", jane.age)
fmt.Println("Her weight is ", jane.weight)
fmt.Println("Her speciality is ", jane.speciality)
// modify value of skill field
jane.Skills = []string{"anatomy"}
fmt.Println("Her skills are ", jane.Skills)
fmt.Println("She acquired two new ones ")
jane.Skills = append(jane.Skills, "physics", "golang")
fmt.Println("Her skills now are ", jane.Skills)
// modify embedded field
jane.int = 3
fmt.Println("Her preferred number is", jane.int)
}