gistfile1.java

public static void main(String[] args) {
        String initialInput;
        String patternA;
        String patternB;

        int response;
        int contA, contB, contC;

        boolean success = false;
        while (!success) {
            JOptionPane.showMessageDialog(null, "The purpose of this script is to " +
                    "give the value of X from a quadratic equation.\nThe equation" +
                    " must have 3 constants and be in this format:\nAX^2(+/-)" +
                    "BX(+/-)C\n\nThe constant A cannot equal 0." +
                    "\n\nYou will be prompted for 3 integers, and you want to add" +
                    "or subtract them.  You may use negative numbers.");
            initialInput = JOptionPane.showInputDialog("What is your integer for X^2?");
            patternA = "[0-9]|-|";
            if (initialInput.matches(patternA) == true) {
                contA = Integer.parseInt(initialInput);
                success = true;
            } else {
                JOptionPane.showMessageDialog(null, "That was not an integer. Please try" + " again."); ///////////I WANT TO RETURN FROM HERE } System.exit(0);
            }
        }
    }