import java.io.File;
import java.io.IOException;

public class DirProcessor
{
    public DirProcessor(FileProcessor fileProcessor) {
        this.fileProcessor = fileProcessor;
    }

    FileProcessor fileProcessor;

    public int countSymbolsFromPackage(String folderPath) throws IOException
    {
        File folder = new File(folderPath);
        File[] listOfFiles = folder.listFiles();
        int sum = 0;
        for (File file : listOfFiles) {
            String filePath = file.getPath();
            if (filePath.contains(".txt")) {
                sum += fileProcessor.countSymbols(filePath);
            }
        }
        return sum;
    }
}