HW04 complete

hw04_struct_comparator/main.go

@@ -4,39 +4,47 @@ import (
 	"fmt"
 )
 
-type book struct {
-	Id            int
-	Title, Author string
-	Year, Size    int
-	Rate          float32
+type Book struct {
+	id            int
+	title, author string
+	year, size    int
+	rate          float32
 }
 
-func (p *book) Print() {
-	fmt.Println("Id:", p.Id)
-	fmt.Println("Title:", p.Title)
-	fmt.Println("Author:", p.Author)
-	fmt.Println("Year:", p.Year)
-	fmt.Println("Size:", p.Size)
-	fmt.Println("Rate:", p.Rate)
+type Num int
+
+const (
+	Year Num = iota
+	Size
+	Rate
+)
+
+func (p *Book) Print() {
+	fmt.Println("Id:", p.id)
+	fmt.Println("Title:", p.title)
+	fmt.Println("Author:", p.author)
+	fmt.Println("Year:", p.year)
+	fmt.Println("Size:", p.size)
+	fmt.Println("Rate:", p.rate)
 }
 
 func main() {
-	book1 := &book{1, "skazki", "Pushkin", 1825, 23, 4.3}
-	book2 := &book{2, "drama", "Lermontov", 1817, 302, 4.6}
+	book1 := &Book{1, "skazki", "Pushkin", 1825, 23, 4.3}
+	book2 := &Book{2, "drama", "Lermontov", 1817, 302, 4.6}
 	book1.Print()
 	fmt.Println("--------------")
 	book2.Print()
-	fmt.Println("--------------")
+
 	var s string
 
 	fmt.Printf("Введите поле для сравнения Year, Size или Rate: ")
 	fmt.Scanf("%s", &s)
 	switch {
 	case s == "Year" || s == "year":
-		fmt.Println(book1.Year > book2.Year)
+		fmt.Println(book1.year > book2.year)
 	case s == "Size" || s == "size":
-		fmt.Println(book1.Size > book2.Size)
+		fmt.Println(book1.size > book2.size)
 	case s == "Rate" || s == "rate":
-		fmt.Println(book1.Rate > book2.Rate)
+		fmt.Println(book1.rate > book2.rate)
 	}
 }