What is the best way to insert smileys into a guestbook form using Java and display them when writing input texts to a text file?

To insert smileys into a guestbook form using Java and display them when writing input texts to a text file, you can create a mapping of smiley symbols to their corresponding image file names. When a user inputs a smiley symbol in the guestbook form, you can replace it with the corresponding HTML image tag before writing the input text to the text file. ```java import java.io.FileWriter; import java.io.IOException; import java.util.HashMap; import java.util.Map; public class Guestbook { private static final Map<String, String> smileyMap = new HashMap<>(); static { smileyMap.put(":)", "smiley.png"); smileyMap.put(":D", "laugh.png"); // Add more smiley symbols and corresponding image file names here } public static void main(String[] args) { String userInput = "Hello :) This is a test :D"; for (Map.Entry<String, String> entry : smileyMap.entrySet()) { userInput = userInput.replace(entry.getKey(), "<img src='" + entry.getValue() + "'>"); } try (FileWriter fileWriter = new FileWriter("guestbook.txt")) { fileWriter.write(userInput); } catch (IOException e) { e.printStackTrace(); } } } ```