work in progress to highlight text

package edu.bu.LanguageCorrection;

import javax.swing.*;

import javax.swing.text.Highlighter;

import javax.swing.text.Highlighter.Highlight;

import java.awt.*;

// import java.awt.event.ActionEvent;

import java.io.ByteArrayOutputStream;

public class MainApp extends JFrame {

    private final JTextField urlField;

    private JTextArea resultArea;

    private Highlighter.HighlightPainter myHighlightPainter;

    private final JButton runButton;

    private final JComboBox<String> moduleSelector;

            } else 

                content = text;

            Checker checker = new Checker();

            checker.analyze(content);

            checker.analyze(content); // This outputs void so we need to take the output from the console

            StringBuilder result = new StringBuilder();

            // Redirect output to the GUI

            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

            PrintStream printStream = new PrintStream(outputStream);

            PrintStream originalOut = System.out;

            System.setOut(printStream);

            // Reset System.out

            System.out.flush();

            System.setOut(originalOut);

            // Capture the output into a string

            String output = outputStream.toString();

            // Parsing the output to get sentences and phrases

            String[] lines = output.split("\n");

            String[] sentences = null;

            for (String line : lines) {

                if (line.startsWith("{")) {

                    continue;

                } else if (line.startsWith("sentences:")) {

                    line = line.replace("sentences:", "").replaceAll("\"{", "").replaceAll("}", "");

                    sentences = line.split(","); // List of sentences

                } else if (line.startsWith("phrases:")) {

                    line = line.replace("phrases:", "").replaceAll("\"{", "").replaceAll("}", "");

                    phrases = line.split(","); // List of phrases

                    for (String phrase : phrases) {

                        double phraseScore = phrases;

                        // Assuming highlight() method is defined elsewhere

                        highlight(resultArea, phrase, phraseScore); // Pass the phrase and its score to highlight

                    }

                }

            }

        } catch (Exception e) {

            resultArea.setText("Error: " + e.getMessage());

        }

    }

    public void highlight(JTextArea textArea, String phrase, String pattern) {

        try {

            Highlighter hilite = textArea.getHighlighter();

            int pos = 0;

            while ((pos = phrase.indexOf(pattern, pos)) >= 0) {

                // Create highlighter using private painter and apply around pattern

                hilite.addHighlight(pos, pos + pattern.length(), myHighlightPainter);

                pos += pattern.length();

            }

        } catch (Exception e) {

        }

    }

    private void runCorrector(String input, boolean isFile) {

        try {

            String content;