print("Selamat datang di glot.io, let's get started!")
// setting default
let width = 2.0
let height = 3.0
let length = 4.0
// counting process
let volume = width * height * length
let Area = 2 (width * height) + 2 * (width * length) + 2 * (length * height)
let circumference = 4 * (width + length + height)
print("=============================================================")
// output dari data yang kita tuliskan di atas
print("Anda mempunyai suatu balok dengan ukuran sbb:")
print("Lebar: \(width) cm")
print("Tinggi: \(height) cm")
print("Panjang: \(length) cm")
print("=============================================================")
print("Dari ukuran di atas, kita bisa mencari supporting data sbb:")
print("Volume: \(volume) cm^3")
print("Area: \(Area) cm^2")
print("Circumference: \(circumference) cm")
print("Selamat datang di glot.io, let's get started!")
print("=============================================================")
// user input!
print("Tentukan dimensi balok Anda:")
print("Lebar: "); let width = readLine()
print("Tinggi: "); let height = readLine()
print("Panjang: "); let length = readLine()
print("=============================================================")
/* kemudian kita ubah data yang dibaca oleh readLine() menjadi data
angka (Double)*/
if let length_in = Double(length ?? "0"), let width_in = Double(width ?? "0"), let height_in = Double(height ?? "0") {
let volume = length_in * width_in * height_in
let area = 2 * (length_in * width_in) + 2 * (length_in * height_in) + 2 * (width_in * height_in)
let circumference = 4 * (width_in + length_in + height_in)
print("=============================================================")
// generate output!
print("Anda mempunyai suatu balok dengan ukuran sbb:")
print("Lebar: \(width_in) cm")
print("Tinggi: \(height_in) cm")
print("Panjang: \(length_in) cm")
print("=============================================================")
print("Dari ukuran di atas, kita bisa mencari supporting data sbb:")
print("Volume: \(volume) cm^3")
print("Area: \(area) cm^2")
print("Circumference: \(circumference) cm")
} else {
print("=============================================================")
print("Input tidak valid!")
print("Re-run this application again.")
}
