private void buttonAdd_Click(object sender, EventArgs e)
{
if (txtShow.Text != "")
{
oper = OperationFactory.createOperate(((Button)sender).Text);
oper.NumberA = Convert.ToDouble(txtShow.Text);
bOperate = true;
}
}
public double getResult()
{
Operation.Operation op = new Operation.Operation();
double a;
double b;
double ans = 0;
List <string> opList = new List <string>(new string[] { "+", "-", "*", "/" });
if (!opList.Contains(tokens[1]))
{
valid = false;
}
if (!Double.TryParse(tokens[0], out a))
{
valid = false;
}
if (!Double.TryParse(tokens[2], out b))
{
valid = false;
}
switch (tokens[1])
{
case "+":
ans = op.plus(a, b);
break;
case "-":
ans = op.minus(a, b);
break;
case "*":
ans = op.time(a, b);
break;
case "/":
if (b != 0)
{
ans = op.divide(a, b);
}
else
{
valid = false;
}
break;
default:
valid = false;
break;
}
return(ans);
}
private void buttonEqual_Click(object sender, EventArgs e)
{
if (txtShow.Text != "")
{
if (((Button)sender).Text != "=")
{
oper = OperationFactory.createOperate(((Button)sender).Text);
}
oper.NumberB = Convert.ToDouble(txtShow.Text);
txtShow.Text = oper.GetResult().ToString();
bOperate = true;
}
}
public double getResult()
{
Operation.Operation op = new Operation.Operation();
double a;
double b;
a = 0;
b = 0;
while (tokens.Count() > 1)
{
double current;
while (tokens.Contains("*") || tokens.Contains("/"))
{
for (int i = 0; i < tokens.Count(); i++)
{
if (tokens[i] == "*" && i >= 1)
{
if (Double.TryParse(tokens[i - 1], out a) && Double.TryParse(tokens[i + 1], out b))
{
current = op.time(a, b);
tokens[i - 1] = Convert.ToString(current);
//Delete both at i and i+1
tokens.RemoveAt(i);
tokens.RemoveAt(i);
break;
}
}
if (tokens[i] == "/" && i >= 1)
{
if (Double.TryParse(tokens[i - 1], out a) && Double.TryParse(tokens[i + 1], out b))
{
current = op.divide(a, b);
tokens[i - 1] = Convert.ToString(current);
//Delete both at i and i+1
tokens.RemoveAt(i);
tokens.RemoveAt(i);
break;
}
}
}
}
while (tokens.Contains("+") || tokens.Contains("-"))
{
for (int i = 0; i < tokens.Count(); i++)
{
if (tokens[i] == "+" && i >= 1)
{
if (Double.TryParse(tokens[i - 1], out a) && Double.TryParse(tokens[i + 1], out b))
{
current = op.plus(a, b);
tokens[i - 1] = Convert.ToString(current);
//Delete both at i and i+1
tokens.RemoveAt(i);
tokens.RemoveAt(i);
break;
}
}
if (tokens[i] == "-" && i >= 1)
{
if (Double.TryParse(tokens[i - 1], out a) && Double.TryParse(tokens[i + 1], out b))
{
current = op.minus(a, b);
tokens[i - 1] = Convert.ToString(current);
//Delete both at i and i+1
tokens.RemoveAt(i);
tokens.RemoveAt(i);
break;
}
}
}
}
}
return(Convert.ToDouble(tokens[0]));
}
