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Set pattern on example list order #1

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7 changes: 7 additions & 0 deletions 01-hello-world/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
package main

import "fmt"

func main() {
fmt.Println("Olá nobre guerreiros!")
}
31 changes: 31 additions & 0 deletions 02-variables/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
package main

import "fmt"

func main() {
// int
// declarando uma variável utilizando o modelo pré declarativo
var x int // ou var x int = 10
x = 10
fmt.Printf("O valor de 'x' é %d\n", x)

// declarando uma variável utilizando o modelo auto-declarativo
a := 20
fmt.Printf("O valor de 'a' era %d\n", a)
a = 30
fmt.Printf("O valor de 'a' agora é %d\n", a)

// string
name := "wilson"
fmt.Println("Meu nome é", name)

// float64
pi := 3.14
fmt.Printf("O valor de PI é %0.6f\n", pi)

// bool
verdade := true
mentira := false

fmt.Println("Verdade é igual a mentira:", verdade == mentira)
}
9 changes: 9 additions & 0 deletions 03-contantes/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
package main

import "fmt"

const PI = 3.14

func main() {
fmt.Println("O valor de PI é", PI)
}
12 changes: 12 additions & 0 deletions 04-funcoes/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
package main

import "fmt"

// exemplo de função privada
func add(x int, y int) int {
return x + y
}

func main() {
fmt.Println("O resultado de 10 + 20 é", add(10, 20))
}
20 changes: 20 additions & 0 deletions 05-structs/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
package main

import "fmt"

type Person struct {
Name string
Age int
Active bool
}

func main() {
p := Person{
Name: "Wilson Júnior",
Age: 24,
Active: true,
}
fmt.Println("Nome", p.Name)
fmt.Println("Age", p.Age)
fmt.Println("Active", p.Active)
}
10 changes: 10 additions & 0 deletions 06-arrays/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
package main

import "fmt"

func main() {
var mandamentos [2]string
mandamentos[0] = "Amor"
mandamentos[1] = "Paz"
fmt.Println("Mandamentos: ", mandamentos)
}
19 changes: 19 additions & 0 deletions 07-slices/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
package main

import "fmt"

func main() {
linguagens := []string{"python", "ruby", "javascript"}
linguagens = append(linguagens, "go")

fmt.Println("Linguagens da globo.com: ", linguagens)
fmt.Println("Linguagens da globo.com: ", linguagens[1:3])

for i, linguagem := range linguagens {
fmt.Printf(
"Linguagem na posição %d do slice, valor: %s\n",
i,
linguagem,
)
}
}
19 changes: 19 additions & 0 deletions 08-maps/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
package main

import "fmt"

func main() {
people := map[string]int{
"wilson": 25,
"andre": 26,
}

people["junior"] = 10

for name, age := range people {
fmt.Printf("Chave %s do mapa valor: %d\n", name, age)
}

delete(people, "wilson")
fmt.Printf("Posição não alocada: %d\n", people["wilson"])
}
34 changes: 34 additions & 0 deletions 09-methods/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
package main

import "fmt"

type Person struct {
Name string
Age int
}

func (p *Person) String() string {
if p.Age < 18 {
return fmt.Sprintf("Olá jovem %s, seja bem vindo", p.Name)
} else if p.Age > 50 {
return fmt.Sprintf("Olá senhor %s, seja bem vindo", p.Name)
}

return fmt.Sprintf("Olá %s, seja bem vindo", p.Name)
}

func (p *Person) privateMethod() int {
return p.Age * 4
}

func main() {
person := Person{Name: "júnior", Age: 17}
fmt.Println(person.String())

person = Person{Name: "Wilson", Age: 27}
fmt.Println(person.String())

person = Person{Name: "Antônio", Age: 60}
fmt.Println(person.String())

}