lab5dontbeatme

golang/internal/lab5/lab5.go

@@ -0,0 +1,63 @@
+package lab5
+
+import (
+	"errors"
+)
+
+const (
+	ErrIncorrectSpeed  = "incorrect speed"
+	ErrIncorrectWeight = "incorrect weight"
+)
+
+type Car struct {
+	speed  int
+	weight int
+	name   string
+}
+
+func (c *Car) SetSpeed(speed int) error {
+	if speed >= 0 && speed <= 500 {
+		c.speed = speed
+		return nil
+	}
+	return errors.New(ErrIncorrectSpeed)
+}
+
+func (c *Car) SetWeight(weight int) error {
+	if weight >= 1000 && weight <= 2000 {
+		c.weight = weight
+		return nil
+	}
+	return errors.New(ErrIncorrectWeight)
+}
+
+func (c *Car) SetName(name string) {
+	c.name = name
+}
+
+func (c Car) GetSpeed() int {
+	return c.speed
+}
+
+func (c Car) GetWeight() int {
+	return c.weight
+}
+
+func (c Car) GetName() string {
+	return c.name
+}
+
+func NewCar(speed int, weight int, name string) (*Car, error) {
+	tmp := &Car{
+		speed:  speed,
+		weight: weight,
+		name:   name,
+	}
+	if err := tmp.SetSpeed(speed); err != nil {
+		return nil, err
+	}
+	if err := tmp.SetWeight(weight); err != nil {
+		return nil, err
+	}
+	return tmp, nil
+}

golang/main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"isuct.ru/informatics2022/internal/lab4"
+	"isuct.ru/informatics2022/internal/lab5"
 )
 
 func output(answersX, answersY []float64) {
@@ -19,4 +20,13 @@ func main() {
 	fmt.Println("__________________")
 	xL, yL = lab4.TaskB([]float64{1.84, 2.71, 3.81, 4.56, 5.62})
 	output(xL, yL)
+
+	car, err := lab5.NewCar(200, 1000, "BUSIGINMOBIL")
+	if (err == nil) {
+        fmt.Printf("Car's speed is %d\n", car.GetSpeed())
+        fmt.Printf("Car's weight is %d\n", car.GetWeight())
+        fmt.Printf("Car's name is %s\n", car.GetName())
+    } else {
+        fmt.Println(err)
+    }
 }