02.LapTopShop

Battery.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _02.LaptopShop
{
   public class Battery
    {
        private double batteryLife;
        private string model;

        public double BatteryLife
        {
            get
            {
                return this.batteryLife;
            }
            set
            {
                if (value<0)
                {
                    throw new ArgumentException();
                }
                else
                {
                    this.batteryLife = value;
                }
            }
        }
        public string Model
        {
            get
            {
                return this.model;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentNullException();
                }
                else
                {
                    this.model = value;
                }
            }
        }

        public Battery(double batteryLife,string model)
        {
            this.BatteryLife = batteryLife;
            this.Model = model;
        }
        public Battery():this(0,"Li-Lon")
        {

        }

        public Battery(Battery b):this(b.BatteryLife, b.Model)
        {

        }
    }
}

Laptop.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _02.LaptopShop
{
    public class LapTop
    {
        private string model;
        private string manufacturer;
        private string processor;
        private int ram;
        private string graphicsCard;
        private int hdd;
        private double screen;
        private decimal price;
        private Battery battery;


        public string Model
        {
            get
            {
                return this.model;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentNullException();
                }
                else
                {
                    this.model = value;
                }
            }
        }
        public string Manufacturer
        {
            get
            {
                return this.manufacturer;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentException();
                }
                else
                {
                    this.manufacturer = value;
                }
            }
        }
        public string Processor
        {
            get
            {
                return this.processor;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentException();
                }
                else
                {
                    this.processor = value;
                }
            }
        }
        public int Ram
        {
            get
            {
                return this.ram;
            }
            set
            {
                if (value < 0)
                {
                    throw new ArgumentException();
                }
                this.ram = value;
            }
        }
        public string GraphicsCard
        {
            get
            {
                return this.graphicsCard;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                {
                    throw new ArgumentException();
                }
                else
                {
                    this.graphicsCard = value;
                }
            }
        }
        public int Hdd
        {
            get
            {
                return this.hdd;
            }
            set
            {
                if (value < 0)
                {
                    throw new ArgumentException();
                }
                this.hdd = value;
            }
                
        }
        public double Screen
        {
            get
            {
                return this.screen;
            }
            set
            {
                if (value<0)
                {
                    throw new ArgumentException();
                }
                else
                {
                    this.screen = value;
                }
            }
        }
        public Battery Battery
        {
            get
            {
                return this.battery;
            }
            set
            {
                battery = new Battery(value);
            }
        }
        public decimal Price
        {
            get
            {
                return this.price;
            }
            set
            {
                if (value < 0)
                {
                    throw new ArgumentException("Price cant be negative value.");
                }
                else
                {
                    this.price = value;
                }
            }
        }

        

        public LapTop(LapTop lap):this(lap.Model,lap.Manufacturer,lap.Processor,lap.Ram,lap.GraphicsCard,lap.Hdd,lap.Screen,lap.Price,lap.Battery.BatteryLife,lap.Battery.Model)
        {

        }

        public LapTop(string model, string manufacturer, string processor, int ram, string graphicsCard, int hdd, double screen, decimal price, double batteryLife, string batteryModel)
        {
            this.Model = model;
            this.Manufacturer = manufacturer;
            this.Processor = processor;
            this.Ram = ram;
            this.GraphicsCard = graphicsCard;
            this.Hdd = hdd;
            this.Screen = screen;
            this.Price = price;
            this.Battery = new Battery(batteryLife,batteryModel);
        }
        public LapTop(string model, decimal price) : this(model, "Lenovo Yoga 2 Pro", 
            "Intel Core i5-4210U (2-core, 1.70 - 2.70 GHz, 3MB cache)", 0, 
            "Intel HD Graphics 4400", 0, 0, price,0, "Li-Ion, 4-cells, 2550 mAh")
        {

        }
        public override string ToString()
        {
            StringBuilder str = new StringBuilder();
            str.AppendFormat("model {0}\nmanufacturer {1}\nprocessor {2}\nRaM {3} GB\ngraphics card {4}\nHDD {5}\nscreen {6}\"\nbattery {7}\nbattery life {8} hours\nprice {9} lv."
                , Model, Manufacturer, Processor, Ram, GraphicsCard, Hdd, Screen, Battery.Model, Battery.BatteryLife, Price);
            return str.ToString();
        }
    }
}