有两个结构和一个接口。一种结构用于 gfg 课程细节，另一种结构用于竞赛细节。一个界面是 get_name 方法，它将返回课程和竞赛的名称。在接口的帮助下，我们将访问结构的变量，因为我们不想从外部访问结构的变量。
示例 1: 该程序将接受 2 个输入。
Go
// Golang program to access the interface fields
package main
import "fmt"
// Declare course structure
type Course struct {
name string
}
// Declare contest structure
type Contest struct {
name string
}
// Declare interface
type Name interface {
get_name() string
}
// get_name function for course
func (a Course) get_name() string {
return a.name
}
// get_name function for contest
func (b Contest) get_name() string {
return b.name
}
// Compare course and contest name.
// Name is interface type
func name_compare(course, contest Name) bool {
return contest.get_name() == course.get_name();
}
func main() {
var course_name, contest_name string
// Get the course name from user
fmt.Println("Enter course name: ")
fmt.Scan(&course_name)
// Get the contest's name from user
fmt.Println("Enter contest name: ")
fmt.Scan(&contest_name)
// Create structure of course
course := Course{course_name}
// Create structure of contest
contest := Contest{contest_name}
fmt.Print("Is same subjects in course and contest: ")
// Call interface function to compare names
fmt.Print(name_compare(course, contest))
}
输出:
Enter course name: DBMS
Enter contest name: DBMS
Is same subjects in course and contest: true
示例 2: 该程序将接受 2 个输入。
Go
// Golang program to access the interface fields
package main
import "fmt"
// Declare courseprice structure
type Courseprice struct {
price int
}
// Declare contestprice structure
type Couponprice struct {
price int
}
// Declare interface
type Price interface {
get_price() int
}
// get_price function for Courseprice
func (a Courseprice) get_price() int {
return a.price
}
// get_price function for Coupon price
func (b Couponprice) get_price() int {
return b.price
}
// Compare courseprice and Couponprice.
// Price is interface type
func price_compare(courseprice, Couponprice Price) bool {
if courseprice.get_price() <= Couponprice.get_price() {
return true
} else {
return false
}
}
func main() {
var courseprice, Couponprice int
// Get the courseprice from user
fmt.Println("Enter course price: ")
fmt.Scan(&courseprice)
// Get the Couponprice from user
fmt.Println("Enter Coupon Price: ")
fmt.Scan(&Couponprice)
// Create structure of courseprice
course := Courseprice{courseprice}
// Create structure of Couponprice
Coupon := Couponprice{Couponprice}
fmt.Print("Is the course is free: ")
// Call interface function to compare price
fmt.Print(price_compare(course, Coupon))
}
输出:
Enter course price: 1000
Enter Coupon Price: 700
Is the course is free: false