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); }