Circle List

در این برنامه بکمک لیست یک برنامه شی گرا برای دریافت و محاصبه محیط و مساحت دایره انجام میدهیم.

محیط کلاس:

class dayere
{
#region feild
private double _data;

#endregion
public void setshoa(double r)
{
_data = r;
}
public double getshoa()
{
return _data;
}
public double Area()
{
return PI * Pow(_data, 2);
}
public double surface()
{
return PI * 2 * _data;
}
}

}

محیط فرم:

public partial class Form1 : Form
{
#region list
List listshoa = new List();
#endregion
public Form1()
{
InitializeComponent();
}
dayere c = new dayere();
public double sumarea()
{
double majmo = 0;
foreach(double j in listshoa)
{
c.setshoa(j);
tyy += c.Area();
}
return majmo;
}

private void btn1_Click(object sender, EventArgs e)
{

if (txt1.Text == string.Empty)
{
MessageBox.Show("chizi vared nashode ast!");
return;
}
bool numeric = double.TryParse(txt1.Text,out double shoa);
if (!numeric)
{
MessageBox.Show("lotfan adad vared konid");
return;
}
listshoa.Add(shoa);
listBox1.Items.Add("shoa hast= " + shoa.ToString());
txt1.Text = string.Empty;

c.setshoa(shoa);
lbl1.Text = $"masahat shoa hast= {+c.Area()} ";
lbl2.Text = ("tedade argham vared shode= " + listshoa.Count.ToString());
listBox1.Items.Add("masahat in shoa hast= "+c.Area());

}

private void btn2_Click(object sender, EventArgs e)
{
listshoa.Clear();
listBox1.Items.Clear();
lbl1.Text=string.Empty;
lbl2.Text = string.Empty;
}

private void btn3_Click(object sender, EventArgs e)
{

}

private void btn3_Click_1(object sender, EventArgs e)
{
listBox1.Items.Add("----------------------------------------");
listBox1.Items.Add("majmo masahate shoma hast=" + sumarea().ToString());
lbl4.Text = ("majmo ta in lahze hast= " + sumarea().ToString());
}
}
}