Reference - Homework Week 06

第六周作業程式碼參考
執行檔
04.15-PM09:50修正: 屬性內set部分的錯誤

form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Hw6
{
    public partial class Form1 : Form
    {
        private Shape3D[] shapeArr=new Shape3D[100];
        private static double[] densityArr = { 2.7, 7.87, 11.3 };
        public Form1()
        {
            InitializeComponent();
            cbox_ShapeSelect.SelectedIndex = 0;
            cbox_MaterialSelect.SelectedIndex = 0;
        }

        private void cbox_ShapeSelect_SelectedIndexChanged(object sender, EventArgs e)
        {
            switch (cbox_ShapeSelect.SelectedIndex)
            {
                case 0:
                    lbl_Para1.Text = "半徑";
                    lbl_Para2.Visible = false;
                    txt_Para2.Visible = false;
                    break;
                case 1:
                    lbl_Para1.Text = "邊長";
                    lbl_Para2.Visible = false;
                    txt_Para2.Visible = false;
                    break;
                case 2:
                    lbl_Para1.Text = "半徑";
                    lbl_Para2.Text = "高";
                    lbl_Para2.Visible = true;
                    txt_Para2.Visible = true;
                    break;
                case 3:
                    lbl_Para1.Text = "邊長";
                    lbl_Para2.Text = "高";
                    lbl_Para2.Visible = true;
                    txt_Para2.Visible = true;
                    break;
                default:
                    break;

            }
        }

        private void btn_Add_Click(object sender, EventArgs e)
        {
            int amount = Shape3D.Amount;

            double density = densityArr[cbox_MaterialSelect.SelectedIndex];

            switch (cbox_ShapeSelect.SelectedIndex)
            {
                case 0:
                    shapeArr[amount] = new Ball(double.Parse(txt_Para1.Text), density);
                    break;
                case 1:
                    shapeArr[amount] = new Cube(double.Parse(txt_Para1.Text), density);
                    break;
                case 2:
                    shapeArr[amount] = new Cylinder(double.Parse(txt_Para1.Text), double.Parse(txt_Para2.Text),density);
                    break;
                case 3:
                    shapeArr[amount] = new Pyramid(double.Parse(txt_Para1.Text), double.Parse(txt_Para2.Text), density);
                    break;
                default:
                    break;
            }
            txt_Message.AppendText(shapeArr[amount].ShapeProperty()+Environment.NewLine);
            txt_AmountOfShape.Text = Shape3D.Amount.ToString();
        }

        private void btn_Calculate_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < Shape3D.Amount;i++ )
            {
                string str = (shapeArr[i].ShowVolumeWeight() + Environment.NewLine);
                txt_Display.AppendText(str);
            }
        }
    }
}

Shape3D.cs

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

namespace Hw6
{
    class Shape3D
    {
        protected double density;
        private static int amount = 0;
        public Shape3D()
        {
            density = 0;
            amount++;
        }
        public Shape3D(double d)
        {
            Density = d;
            amount++;
        }
        public double Density
        {
            get { return density; }
            set
            {
                if (value< 0)
                    density = 0;
                else
                    density = value;
            }
        }
        public static int Amount
        {
            get { return amount; }
        }
        public double Weight()
        {
            return Density * Volume();
        }
        //Virtual Method
        public virtual double Volume()
        {
            return 0;
        }
        
        public string ShowVolumeWeight()
        {
            string str = ShapeProperty();
            str += '\t';
            str += string.Format("{0,8:F2}", density);
            str += '\t';
            str += string.Format("{0,8:F2}", Volume());
            str += '\t';
            str += string.Format("{0,8:F2}", Weight());
            return str;
        }
        public virtual string ShapeProperty()
        {
            return "";
        }

    }
}

Ball.cs

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

namespace Hw6
{
    class Ball : Shape3D
    {
        private double radius;
       // private static double pi = 3.1415926;
        public Ball(double radius, double density)
            : base(density)
        {
            Radius = radius;
        }
        public double Radius
        {
            get { return radius; }
            set
            {
                if (value < 0)
                    radius = 0;
                else
                    radius = value;
            }
        }
        public override double Volume()
        {
            return 4.0/3*GeoConstant.pi*radius*radius*radius;
        }

      
        public override string ShapeProperty()
        {
            string str = string.Format("{0,8}", "Ball");
            str += '\t';
            str += string.Format("{0,8:F2}", radius);
            str += '\t';
            str += string.Format("{0,8}", "");
            return str;
        }
    }
}

Cube.cs

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

namespace Hw6
{
    class Cube : Shape3D
    {
        private double side;

        public Cube(double side, double density)
            : base(density)
        {
            Side = side;
        }
        public double Side
        {
            get { return side; }
            set
            {
                if (value < 0)
                    side = 0;
                else
                    side = value;
            }
        }
        public override double Volume()
        {
            return side*side*side;
        }


        public override string ShapeProperty()
        {
            string str = string.Format("{0,8}", "Cube");
            str += '\t';
            str += string.Format("{0,8:F2}", side);
            str += '\t';
            str += string.Format("{0,8}", "");
            return str;
        }
    }
}

Cylinder

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

namespace Hw6
{
    class Cylinder : Shape3D
    {
        private double radius;
        private double height;
      //  private static double pi = 3.1415926;
        public Cylinder(double radius, double height,double density)
            : base(density)
        {
            Radius = radius;
            Height = height;
        }
        public double Radius
        {
            get { return radius; }
            set
            {
                if (value < 0)
                    radius = 0;
                else
                    radius = value;
            }
        }
        public double Height
        {
            get { return height; }
            set
            {
                if (value < 0)
                    height = 0;
                else
                    height = value;
            }
        }
        public override double Volume()
        {
            return GeoConstant.pi * radius * radius * height;
        }


        public override string ShapeProperty()
        {
            string str = string.Format("{0,8}", "Cylinder");
            str += '\t';
            str += string.Format("{0,8:F2}", radius);
            str += '\t';
            str += string.Format("{0,8:F2}", height);
            return str;
        }
    }
}

Pyramid.cs

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

namespace Hw6
{
    class Pyramid : Shape3D
    {
        private double side;
        private double height;
        public Pyramid(double side, double height,double density)
            : base(density)
        {
            Side = side;
            Height = height;
        }
        public double Side
        {
            get { return side; }
            set
            {
                if (value < 0)
                    side = 0;
                else
                    side = value;
            }
        }
        public double Height
        {
            get { return height; }
            set
            {
                if (value < 0)
                    height = 0;
                else
                    height = value;
            }
        }
        public override double Volume()
        {
            return 1.0/3*side*side*height;
        }



        public override string ShapeProperty()
        {
            string str = string.Format("{0,8}", "Pyramid");
            str += '\t';
            str += string.Format("{0,8:F2}", side);
            str += '\t';
            str += string.Format("{0,8:F2}", height);
            return str;
        }
    }
}