Files
the-way-to-go_ZH_CN/eBook/exercises/chapter_10/rectangle.go
2015-03-03 12:25:25 -05:00

28 lines
537 B
Go
Executable File

// rectangle.go
package main
import "fmt"
type Rectangle struct {
length, width int
}
func (r *Rectangle) Area() int {
return r.length * r.width
}
func (r *Rectangle) Perimeter() int {
return 2* (r.length + r.width)
}
func main() {
r1 := Rectangle{4, 3}
fmt.Println("Rectangle is: ", r1)
fmt.Println("Rectangle area is: ", r1.Area())
fmt.Println("Rectangle perimeter is: ", r1.Perimeter())
}
/* Output:
Rectangle is: {4 3}
Rectangle area is: 12
Rectangle perimeter is: 14
*/