/**
* Generates a report mapping HTML page names to page numbers.
*/
public class HtmlPageReport {

public static void main(String[] args) {
// Directory containing HTML files
String directoryPath = “path/to/html/files”; // <-- Change this to your folder path try { List htmlPages = getHtmlPageNames(directoryPath);
printReport(htmlPages);
} catch (IOException e) {
System.err.println(“Error reading HTML files: ” + e.getMessage());
}
}

/**
* Retrieves HTML file names from a directory.
*
* @param dirPath Path to the directory containing HTML files
* @return List of HTML file names
* @throws IOException if directory is invalid or inaccessible
*/
public static List getHtmlPageNames(String dirPath) throws IOException {
File dir = new File(dirPath);

if (!dir.exists() || !dir.isDirectory()) {
throw new IOException(“Invalid directory: ” + dirPath);
}

File[] files = dir.listFiles((d, name) -> name.toLowerCase().endsWith(“.html”) || name.toLowerCase().endsWith(“.htm”));

List pageNames = new ArrayList<>();
if (files != null) {
for (File file : files) {
pageNames.add(file.getName()); // Just the file name
}
}
return pageNames;
}

/**
* Prints a report mapping page numbers to page names.
*
* @param pageNames List of HTML page names
*/
public static void printReport(List pageNames) {
System.out.println(“=== HTML Page Report ===”);
System.out.printf(“%-10s %-30s%n”, “Page No.”, “Page Name”);
System.out.println(“—————————————-“);

int pageNumber = 1;
for (String pageName : pageNames) {
System.out.printf(“%-10d %-30s%n”, pageNumber++, pageName);
}
}
}