public static void Main(string[] args) { Addition add = new Addition(); substraction sub = new substraction(); Console.WriteLine("Enter Your Choice"); Console.WriteLine("\n 1 - For Addition \n 2 - For Substraction \n 3 - For Multiplication \n 4 - For Division"); int a = Convert.ToInt32(Console.ReadLine()); if (a == 1) { int c = add.Add(); Console.WriteLine("The Sum Value is {0}", c); } if (a == 2) { int c = sub.Sub(); Console.WriteLine("The Difference is {0}", c); } Console.ReadKey(); }
//private int result = 0; public int Add(int a, int b) { return(Addition.Add(a, b)); //return result; }
/// <summary> /// CalculateResult is the bread and butter of this calculator. It takes all the parts of the input field and evaluates it. /// If a result is undefined or imaginary an error is "thrown" and also tells the user what kind of illegal action it took. /// Aside from this the method calculates the corresponding operations based on the input provided from the user. /// While the calculator cannot handle chain additon or chain multiplication (as that requires the shunting yard /// algorithm for more complex operations, eg. 3+2*6), it uses ANS as the next value if the user needs to use the result for something else. /// In that sense you CAN do chain addition or chain multiplication, but you cannot execute several different operations at the same time. /// </summary> private void CalculateResult() { double result = 0; var number1 = model.CalcNumbers[0]; if (model.SpecialOperatorPicked == true) { switch (model.Operator) { case '√': Boolean isNumberNegative = number1 < 0; if (isNumberNegative) { result = 0; //As result becomes an imaginary double MessageBox.Show("NaN", "Error"); } else { result = _sqrt.PowerOf(number1, 0.5); } break; default: break; } } else if (model.OperatorPicked) { var number2 = model.CalcNumbers[1]; switch (model.Operator) { case '+': result = _add.Add(number1, number2); break; case '−': result = _remove.Add(number1, number2); break; case '×': result = _multiplicate.Multiplicate(number1, number2); break; case '÷': if (number2 == 0) { result = 0; //Result becomes an undefined answer MessageBox.Show("Undefined", "Error"); } else { result = _divide.Multiplicate(number1, number2); } break; case '^': result = _powerOf.PowerOf(number1, number2); break; default: break; } } DisplayResult(result); }