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Go Struct

In Go, Struct can be used to create user-defined types.

Struct is a composite type means it can have different properties and each property can have their own type and value.

Struct can represent real-world entity with these properties. We can access a property data as a single entity. It is also valued types and can be constructed with the new() function.

Go Struct Example

package main
import (
   "fmt"
)
type person struct {
   firstName string
   lastName  string
   age       int
}
func main() {
   x := person{age: 30, firstName: "John", lastName: "Anderson", }
   fmt.Println(x)
   fmt.Println(x.firstName)
}

Output:

{John Anderson 30}
John

Go Embedded Struct

Struct is a data type and can be used as an anonymous field (having only the type). One struct can be inserted or "embedded" into other struct.

It is a simple 'inheritance' which can be used to implement implementations from other type or types.

Go Embedded Struct Example

package main
import (
   "fmt"
)
type person struct {
   fname string
   lname string}
type employee struct {
   person
   empId int
}
func (p person) details() {
   fmt.Println(p, " "+" I am a person")
}
func (e employee) details() {
   fmt.Println(e, " "+"I am a employee")
}
func main() {
   p1 := person{"Raj", "Kumar"}
   p1.details()
   e1 := employee{person:person{"John", "Ponting"}, empId: 11}
   e1.details()
}

Output:

{Raj Kumar}   I am a person
{{John Ponting} 11}  I am a employee

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