private void DoSingleEvaluationWithPresidence(char ops)
{
int position = operationList.IndexOf(ops);
double num1 = numberList[position];
double num2 = numberList[position + 1];
double result = CalculatorUtility.Evaluate('/', num1, num2);
//remove numbers in position
numberList.RemoveAt(position);
operationList.RemoveAt(position);
//put results back in
numberList[position] = result;
}
private double DoEvaluation()
{
if (numberList.Count >= 2)
{
//the idea is to evaluate 2 numbers at a time
double num1 = numberList[0];
double num2 = numberList[1];
char ops = operationList[0];
double results = CalculatorUtility.Evaluate(ops, num1, num2);
//1st 2 numbers are evaluate.
//now we remove the first item
operationList.RemoveAt(0);
numberList.RemoveAt(0);
//now we put result into the first location
numberList[0] = results;
//And then we repeat again
}
if (numberList.Count == 0)
{
return(0);
}
if (numberList.Count == 1)
{
return(numberList[0]);
}
else
{
// we do a nested loop, to evaluate the next pair of numbers
//return DoEvaluation();
return(DoEvaluation());
}
}
