FractionCalculator.class

import java.util.Scanner;

public class FractionCalculator {


    public static void main(String[] args){
        intro();
        String operand = operand();


    }

    private static void intro() {
        System.out.println("This program is a Fraction Calculator.");
        System.out.println("It will add, subtract, multiply and divide fractions until you type Q to quit.");
        System.out.println("Please enter your fractions in the form a/b, where a and b are integers.");
        for (int i = 0; i < 100; i++) {
            System.out.print("-");
        }
    }

    private static String operand(){
        Scanner input = new Scanner(System.in);
        System.out.print("PLease enter an operation (+, -, /, *, = or Q to quit: ");
        String operand = input.nextLine();

        while (operand != "+" && operand != "-" && operand != "*" && operand != "/" && operand != "=") {
            System.out.print("Invalid input (+, -, /, *, = or Q to quit): ");
            operand = input.nextLine();
        }
        return operand;
    }
}