What are some examples of structs and interfaces in Go?

What are some examples of structs and interfaces in Go?

In Go, a struct is a composite data type that groups together variables (fields) under a single name. For example:

type Person struct {
    Name string
    Age  int
}

An interface, on the other hand, defines a contract that types can implement. For example:

type Greeter interface {
    Greet() string
}

Would you like to see more detailed examples?

Yes, can you show me how to implement an interface?

Sure! Here's how you can implement the Greeter interface with a Person struct:

func (p Person) Greet() string {
    return "Hello, my name is " + p.Name
}

Now, any Person can be used as a Greeter. Would you like to see this in action with a complete program?

Yes, please provide a complete example.

Here's a complete example:

package main

import "fmt"

type Person struct {
    Name string
    Age  int
}

func (p Person) Greet() string {
    return "Hello, my name is " + p.Name
}

func main() {
    p := Person{Name: "Alice", Age: 30}
    fmt.Println(p.Greet())
}

This program creates a Person and calls the Greet method. Would you like to know more about structs or interfaces?