getText()

public void actionPerformed(ActionEvent e) {
            try { inputtext = gui.input.getText().toUpperCase(); }
            catch (IllegalArgumentException x) {
                gui.output.setText("Please enter either a Roman Numeral or a Number");
            }
            for (int i = 0; i < inputtext.length(); i++) {
                    if (constants.contains(inputtext.charAt(i))) {
                    charinput = inputtext.toCharArray();
                } else { gui.output.setText("Please enter a Roman Numeral");}
            }

            for (int i = 0; i < charinput.length; i++) {
                /*
                // Order:
                // 1) checks to see if previous is a roman numeral
                // 2) checks to see if previous is a higher number
                // 3) minuses from total based on previous
                // 4) adds to toal based on current place in loop
                */
                if (constants.contains(previous)) {
                    System.out.println(charinput.length);
                    for (int x = 0; x < charinput.length; x ++) {
                        System.out.println(charinput[x]);
                    }