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Console calculator multi operator1/28/2024 Int num1 = Convert.ToInt32(Console.ReadLine()) class ProgramĬonsole.WriteLine("Please input two numbers") The following code is a code example, and you can refer to it. You can create a small menu to choose what you want to do. Public static double Div(int num1, int num2) Public static int Mult(int num1, int num2) Public static int Sub(int num1, int num2) Public static int Sum(int num1, int num2) \n", answer1, answer2, answer3, answer4) I know it looks silly and can be done in a much more simple way, but I'm trying to explain this to people who are new to C# and are beginning to learn about methods. I want to use multiple methods and have everything visible in the main method. This is what I wrote out, but is there a better/more efficient way to write this code? There are four pillars of OOP and we’ll touch on the first two in this Sprint.I wrote out a simple calculator that uses multiple methods. Object-Oriented Programming (OOP) is a major subject in itself so this will just be a high-level overview of what you need to know to begin using Classes and Methods in C# programming. We can improve our calculator, by making its implementation cleaner and more reusable by moving some of the logic into Classes and Methods.Ĭ# is an Object-Oriented programming language. We now have a working, interactive C# programming Console Calculator but we have a lot of code in the Main method. Here is an example, displayed step by step, in the Console: Simple C# Calculator We now have a working, interactive C# programming Calculator. Public static void Main (string args) ", result) Let’s try this approach with our simple C# programming calculator app. In the next iteration, we can choose to expand our error tracking to unexpected errors, called “Exceptions” in C# programming, and introduce logic to both “catch” the error as well as logic on what our app should do when an exception occurs.Īs you can see, even with this simple example and a few simple observations, programming can get overwhelming quickly if you try to code all possible features, optimize your code, and protect your app all in the first pass. ![]() We can choose how to validate the input and what our program flow should do if the information entered is invalid.
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