public string SendKeyPress(char key)
{
// Add your implementation here.
switch (key)
{
case var localVariable when Character.IsDigitOrDot(localVariable): // update operand at the time of input only
Display = UpdateOperands(localVariable);
break;
case var localVariable when Character.IsOperator(localVariable): // do arithimatic operations
Display = DoOperation(localVariable);
break;
case 's':
case 'S':
Display = Toggle();
break;
case 'c':
case 'C':
Display = Reset();
break;
default:
break;
}
//Console.WriteLine(Display);
return(Display);
}
public string SendKeyPress(char key)
{
switch (key)
{
case var c when Character.IsDigitOrDot(c):
UpdatedDisplay = Operands.UpdateOperands(c);
break;
case var c when Character.IsSymbol(c):
UpdatedDisplay = DoOperation(c);
break;
case var c when Character.IsToggle(c):
UpdatedDisplay = Operands.ChangeSign();
break;
case var c when Character.IsSetZero(c):
UpdatedDisplay = SetZero();
break;
default: //ignoring other characters and return previous displayed string
break;
}
if (Character.IsInfinity(UpdatedDisplay))
{
Operands.Reset();
UpdatedDisplay = "0";
return(ERROR);
}
return(UpdatedDisplay);
}
