package main

import "fmt"

type UsersCollection struct {
	Items []User
	Count int
}

func (c UsersCollection) Print() {
	for i, item := range c.Items {
		fmt.Printf("%d- %s %d\n", i, item.Name, item.Age)
	}
}

type User struct {
	Name string
	Age  int
}

func main() {
	user1 := User{
		Name: "John Doe",
		Age:  21,
	}

	user2 := User{
		Name: "James Bond",
		Age:  44,
	}

	collection := UsersCollection{
		Items: []User{
			user1, user2,
		},
		Count: 3,
	}

	collection.Print()
}

package main

import "fmt"

type Person struct {
	Name string
	Age int
}

func (p *Person) IncreaseAge() {
	p.Age += 1
}

func (p Person) Greet() {
	fmt.Printf("Hi, My name is %s\n", p.Name)
}

func main() {
	p := Person{Name:"Mahdi", Age: 31}
	
	p.Greet() // Hi, My name is Mahdi
	p.IncreaseAge()
	
	fmt.Println(p.Age) // 32
}

package main

import "fmt"

type Person struct {
	Name string
	Age int
}

func (p *Person) IncreaseAge() {
	p.Age += 1
}

func (p Person) Greet() {
	fmt.Printf("Hi, My name is %s\n", p.Name)
}

func main() {
	p := Person{Name:"Mahdi", Age: 31}
	
	q := p.Greet
	
	q() // Hi, My bane is Mahdi
}

package main

import "fmt"

type Person struct {
	Name string
	Age int
}

func (p *Person) IncreaseAge() {
	p.Age += 1
}

func (p Person) Greet() {
	fmt.Printf("Hi, My name is %s\n", p.Name)
}

func main() {
	p := Person{Name:"Mahdi", Age: 31}
	q := Person{Name:"Armin", Age: 39}

	greet := Person.Greet
	
	greet(p) // Hi, My name is Mahdi
	greet(q) // Hi, My name is Armin
}