Lab8

golang/Laba7/book.go

@@ -0,0 +1,31 @@
+package lab7
+
+type Book struct {
+	name      string
+	price     float64
+	varieties string
+}
+
+func (b *Book) GetName() string {
+	return b.name
+}
+
+func (b *Book) SetName(NewName string) {
+	b.name = NewName
+}
+
+func (b *Book) GetPrice() float64 {
+	return b.price
+}
+
+func (b *Book) SetPrice(NewPrice float64) {
+	b.price = NewPrice
+}
+
+func (b *Book) ApplyDiscount(discount float64) {
+	b.price = b.price * (100 - discount) / 100
+}
+
+func (b *Book) SetVarieties(NewVarieties string) {
+	b.varieties = NewVarieties
+}

golang/Laba7/chocolate.go

@@ -0,0 +1,31 @@
+package lab7
+
+type Chocolate struct {
+	name  string
+	price float64
+	brand string
+}
+
+func (ch *Chocolate) GetName() string {
+	return ch.name
+}
+
+func (ch *Chocolate) SetName(NewName string) {
+	ch.name = NewName
+}
+
+func (ch *Chocolate) GetPrice() float64 {
+	return ch.price
+}
+
+func (ch *Chocolate) SetPrice(NewPrice float64) {
+	ch.price = NewPrice
+}
+
+func (ch *Chocolate) ApplyDiscount(discount float64) {
+	ch.price = ch.price * (100 - discount) / 100
+}
+
+func (ch *Chocolate) SetBrand(NewBrand string) {
+	ch.brand = NewBrand
+}

golang/Laba7/clothes.go

@@ -0,0 +1,31 @@
+package lab7
+
+type Clothes struct {
+	name     string
+	price    float64
+	material string
+}
+
+func (c *Clothes) GetName() string {
+	return c.name
+}
+
+func (c *Clothes) SetName(NewName string) {
+	c.name = NewName
+}
+
+func (c *Clothes) GetPrice() float64 {
+	return c.price
+}
+
+func (c *Clothes) SetPrice(NewPrice float64) {
+	c.price = NewPrice
+}
+
+func (c *Clothes) ApplyDiscount(discount float64) {
+	c.price = c.price * (100 - discount) / 100
+}
+
+func (c *Clothes) SetMaterial(NewMaterial string) {
+	c.material = NewMaterial
+}

golang/Laba7/lab7.go

@@ -0,0 +1,44 @@
+package lab7
+
+import (
+	"fmt"
+)
+
+func CalculationSumProduct(listProducts []Product) string {
+	var sum float64 = 0
+	for _, product := range listProducts {
+		sum += product.GetPrice()
+	}
+	s := fmt.Sprintf("%.2f", sum)
+	return s
+}
+
+func Laba7() {
+	var jeans Product = &Clothes{name: "джинсы", price: 3000, material: "полиэстер"}
+	var chocolate Product = &Chocolate{name: "молочный шоколад", price: 70, brand: "Россия щедрая душа"}
+	var comic Product = &Book{name: "Sailor Moon", price: 700, varieties: "манга"}
+
+	if c, ok := jeans.(*Clothes); ok {
+		c.SetMaterial("вискоза")
+	} else {
+		fmt.Println("Ошибка приведения типа для Clothes")
+	}
+
+	if ch, ok := chocolate.(*Chocolate); ok {
+		ch.SetBrand("Alpen Gold")
+	} else {
+		fmt.Println("Ошибка приведения типа для Chocolate")
+	}
+
+	comic.SetPrice(800)
+
+	listProducts := []Product{jeans, chocolate, comic}
+	fmt.Printf("Сумма товаров, без учета скидки, равна: %v рублей \n", CalculationSumProduct(listProducts))
+	jeans.ApplyDiscount(10)
+	chocolate.ApplyDiscount(5)
+	comic.ApplyDiscount(15)
+	fmt.Printf("Сумма товаров, c учетом скидки, равна: %v рублей \n", CalculationSumProduct(listProducts))
+	fmt.Println(jeans)
+	fmt.Println(chocolate)
+	fmt.Println(comic)
+}

golang/Laba7/product.go

@@ -0,0 +1,9 @@
+package lab7
+
+type Product interface {
+	GetName() string
+	SetName(NewName string)
+	GetPrice() float64
+	SetPrice(NewPrice float64)
+	ApplyDiscount(discount float64)
+}

golang/Laba8/input.txt

@@ -0,0 +1,10 @@
+7.2
+1.3
+1.56
+4.71
+0.63
+2.4
+2.8
+3.9
+4.7
+3.16

golang/Laba8/lab8.go

@@ -0,0 +1,28 @@
+package lab8
+
+import (
+	"fmt"
+)
+
+func Laba8() {
+	var err error
+
+	err = CreateFile()
+	if err != nil {
+		panic(err)
+	}
+	err = WriteFile()
+	if err != nil {
+		panic(err)
+	}
+	text, err := ReadFile()
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(text)
+
+	err = task1()
+	if err != nil {
+		panic(err)
+	}
+}

golang/Laba8/task1.go

@@ -0,0 +1,49 @@
+package lab8
+
+import (
+	"io"
+	"os"
+	"strconv"
+	"strings"
+
+	lab4 "isuct.ru/informatics2022/Laba4"
+)
+
+const PathTask1 = "Laba8/input.txt"
+
+func task1() error {
+	file, err := os.Open(PathTask1)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	var text string
+	data := make([]byte, 64)
+	for {
+		n, err := file.Read(data)
+		if err == io.EOF {
+			break
+		}
+		text = string(data[:n])
+	}
+	var result []float64
+	Parameters := strings.Split(text, "\r\n")
+	for _, P := range Parameters {
+		number, err := strconv.ParseFloat(P, 64)
+		if err != nil {
+			return err
+		}
+		result = append(result, number)
+	}
+
+	a := result[0]
+	b := result[1]
+	xMin := result[2]
+	xMax := result[3]
+	xDelta := result[4]
+	lab4.CompleteTaskA(a, b, xMin, xMax, xDelta)
+	lab4.CompleteTaskB(a, b, result[6:])
+
+	return nil
+}

golang/Laba8/task2.go

@@ -0,0 +1,68 @@
+package lab8
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+const Path = "Laba8/text.txt"
+
+func CreateFile() error {
+	file, err := os.Create(Path)
+	if err != nil {
+		return err
+	}
+	file.Close()
+
+	return nil
+}
+
+func WriteFile() error {
+	file, err := os.OpenFile(Path, os.O_WRONLY, 0666)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	fmt.Println("Ввидите текст для поиска в файле")
+	var in *bufio.Reader = bufio.NewReader(os.Stdin)
+	text, err := in.ReadString('\n')
+	if err != nil {
+		return err
+	}
+
+	file.WriteString(text)
+
+	return nil
+}
+
+func ReadFile() (string, error) {
+	file, err := os.Open(Path)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	var text string
+	data := make([]byte, 64)
+	for {
+		n, err := file.Read(data)
+		if err == io.EOF {
+			break
+		}
+		text = string(data[:n])
+	}
+	return text, nil
+}
+
+func SearchText(searchText string) (bool, error) {
+	text, err := ReadFile()
+	if err != nil {
+		return false, err
+	}
+	search := strings.Contains(text, searchText)
+	return search, nil
+}

golang/main.go

@@ -5,10 +5,14 @@ import (
 
 	lab4 "isuct.ru/informatics2022/Laba4"
 	lab6 "isuct.ru/informatics2022/Laba6"
+	lab7 "isuct.ru/informatics2022/Laba7"
+	lab8 "isuct.ru/informatics2022/Laba8"
 )
 
 func main() {
 	fmt.Println("Рындина Ксения Александровна")
 	lab4.CompleteLab4()
 	lab6.Laba6()
+	lab7.Laba7()
+	lab8.Laba8()
 }

golang/vendor/modules.txt

@@ -0,0 +1,2 @@
+# github.com/stretchr/testify v1.8.1
+## explicit