視窗進入點：Form
父類別:Shape3D
子類別:Ball,Cube,Cylinder,Pyramid
Form
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 Homework7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
cboxMaterial.SelectedIndex = 0;
cboxShape.SelectedIndex = 0;
}
private Shape3D[] shapeArray = new Shape3D[100];
private void cboxShape_SelectedIndexChanged(object sender, EventArgs e)
{
switch(cboxShape.SelectedIndex)
{
case 0: //ball
lblParameter1.Text = "半徑";
lblParameter2.Visible = false;
txtParameter2.Visible = false;
break;
case 1: //cube
lblParameter1.Text = "邊長";
lblParameter2.Visible = false;
txtParameter2.Visible = false;
break;
case 2: //cylinder
lblParameter1.Text = "半徑";
lblParameter2.Text = "高";
lblParameter2.Visible = true;
txtParameter2.Visible = true;
break;
case 3: //pyramid
lblParameter1.Text = "邊長";
lblParameter2.Text = "高";
lblParameter2.Visible = true;
txtParameter2.Visible = true;
break;
default:
break;
}
}
private void btnAdd_Click(object sender, EventArgs e)
{
switch(cboxShape.SelectedIndex)
{
case 0:
txtParameter2.Text = null;
shapeArray[Convert.ToInt16(txtAmount.Text)] = new Ball(cboxMaterial.SelectedItem.ToString(), Convert.ToInt16(txtParameter1.Text));
break;
case 1:
txtParameter2.Text = null;
shapeArray[Convert.ToInt16(txtAmount.Text)] = new Cube(cboxMaterial.SelectedItem.ToString(), Convert.ToInt16(txtParameter1.Text));
break;
case 2:
shapeArray[Convert.ToInt16(txtAmount.Text)] = new Cylinder(cboxMaterial.SelectedItem.ToString(), Convert.ToInt16(txtParameter1.Text), Convert.ToInt16(txtParameter2.Text));
break;
case 3:
shapeArray[Convert.ToInt16(txtAmount.Text)] = new Pyramid(cboxMaterial.SelectedItem.ToString(), Convert.ToInt16(txtParameter1.Text), Convert.ToInt16(txtParameter2.Text));
break;
}
ShowHeadingMessage();
txtAmount.Text = Shape3D.amount.ToString();
}
private void btnCalculate_Click(object sender, EventArgs e)
{
ShowSolutionMessage();
}
private void ShowHeadingMessage()
{
txtHeading.Text += shapeArray[Convert.ToInt16(txtAmount.Text)].shape.ToString() + "\t";
txtHeading.Text += txtParameter1.Text + "\t" + txtParameter2.Text + "\t";
txtHeading.Text += Environment.NewLine;
}
private void ShowSolutionMessage()
{
for (int i = 0; i < Convert.ToInt16(txtAmount.Text); i++ )
{
txtSolution.Text += shapeArray[i].shape.ToString() + "\t";
txtSolution.Text += shapeArray[i].density.ToString() + "\t";
txtSolution.Text += shapeArray[i].Volume().ToString() + "\t";
txtSolution.Text += shapeArray[i].Weight().ToString() + "\t";
txtSolution.Text += Environment.NewLine;
}
}
}
}
Shape3D
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Homework7
{
class Shape3D
{
public static int amount;
public double density;
public string shape;
protected double volume;
protected double weight;
public Shape3D()
{
}
public double MaterialDensity(string Material)
{
switch(Material)
{
case "鐵":
density = 7.87;
break;
case "鋁":
density = 2.70;
break;
case "鉛":
density = 11.30;
break;
default:
break;
}
return density;
}
public virtual double Volume()
{
return volume;
}
public double Weight()
{
weight = volume * density;
weight = Math.Round(weight, 2);
return weight;
}
}
}
Ball
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Homework7
{
class Ball : Shape3D
{
private double radius;
private static double pi = 3.1415926;
public Ball()
{
}
public Ball(string material, double radius)
{
this.shape = "Ball";
this.radius = radius;
density = base.MaterialDensity(material);
amount++;
}
public override double Volume()
{
base.volume = 4.0/3*pi*(Math.Pow(radius,3));
base.volume = Math.Round(base.volume,2);
return base.volume;
}
}
}
Cube
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Homework7
{
class Cube : Shape3D
{
private double sideLength;
public Cube()
{
}
public Cube(string material, double sideLength)
{
this.shape = "Cube";
this.sideLength = sideLength;
density = base.MaterialDensity(material);
amount++;
}
public override double Volume()
{
base.volume = Math.Pow(sideLength, 3);
base.volume = Math.Round(base.volume,2);
return base.volume;
}
}
}
Cylinder
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Homework7
{
class Cylinder : Shape3D
{
private double radius;
private double height;
private static double pi = 3.1415926;
public Cylinder()
{
}
public Cylinder(string material, double radius, double height)
{
this.shape = "Cylinder";
this.radius = radius;
this.height = height;
density = base.MaterialDensity(material);
amount++;
}
public override double Volume()
{
base.volume = height*pi*(Math.Pow(radius,2));
base.volume = Math.Round(base.volume,2);
return base.volume;
}
}
}
Pyramid
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Homework7
{
class Pyramid : Shape3D
{
private double sideLength;
private double height;
public Pyramid()
{
}
public Pyramid(string material, double sideLength, double height)
{
this.shape = "Pyramid";
this.sideLength = sideLength;
this.height = height;
density = base.MaterialDensity(material);
amount++;
}
public override double Volume()
{
base.volume = height * Math.Pow(sideLength, 2) / 3;
base.volume = Math.Round(base.volume,2);
return base.volume;
}
}
}
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