Ajay Cooper

Thank you very much for the answer!
I learned that I could also just do:
System.out.println(addobj.add(fnum,snum), and it will print out returned value of that method.

Hello,
After a relatively small C++ background, I decided to learn some Java. I want to be able to pass two variables from my main class, evaluate them in another class, and return that answer to the main class. I have all the code done for it pretty much, but I can't figure out how to use the returned variable in my main class. Any help would be appreciated!
//This is the main class file import java.util.Scanner; public class Main { public static void main (String args[]) { System.out.println("Calculator v2"); Scanner choice = new Scanner (System.in); System.out.println("Which operation do you want to do?"); System.out.println("1-Addition"); System.out.println("2-Subtraction"); System.out.println("3-Multiplication"); System.out.println("4-Divistion"); int opt = choice.nextInt(); switch (opt) { case 1: { Addition addobj = new Addition(); System.out.println("Enter the first number!"); Scanner numbers = new Scanner (System.in); double fnum = numbers.nextDouble(); System.out.println("Enter the first number!"); double snum = numbers.nextDouble(); addobj.add(fnum, snum); break; } default: { System.out.println("No such operation!"); } } } } //This is the addition class file public class Addition { public static double add (double num, double num2) { double answer = num+num2; return answer; } }
I just tried adding a "System.out.println(answer)" in the case inside the switch statement, but I got an error saying that "answer cannot be resolved to a variable." I'm sure this is a quick fix, but I couldn't find anything helpful by googling it, so any help would be awesome.
Thanks much!
~Carpetfizz