Overview

A struct can have a field which is a slice or array of another type. To initialize such a struct we can initialize the slice/array of another type first. After that, we can initialize the parent struct. In the below example class struct type has a slice of the student struct type.

type student struct {
	name   string 
	rollNo int    
	city   string 
}

type class struct {
	className string
	students  []student
}

To initialize such kind of struct we need to initialize the slice of nested struct first. That is first we will initialize the slice of student struct. For eg as below

goerge := student{"Goerge", 35, "Newyork"}
john := student{"Goerge", 25, "London"}

students := []student{goerge, john}

Then we can initialize the class struct as below

class := class{"firstA", students}class := class{"firstA", students}

Another way is to directly initialize the slice of student struct during the initialization of class struct itself. Like as below

class := class{"firstA", []student{goerge, john}}

Program

Let’s see a complete program for that.

package main

import "fmt"

type class struct {
	className string
	students  []student
}

type student struct {
	name   string
	rollNo int
	city   string
}

func main() {
	goerge := student{"Goerge", 35, "Newyork"}
	john := student{"Goerge", 25, "London"}

	students := []student{goerge, john}
	class := class{"firstA", students}

	fmt.Printf("class is %v\n", class)
}

Output

class is {firstA [{Goerge 35 Newyork} {Goerge 25 London}]}