/**
* This method reads information about sculpture from the specified file.
* It parse the file and stores the information in the Sculpture class object.
* Finally, it return the object of Sculpture class if file is valid. Otherwise,
* it returns null.
* @param fileName the path of the file
* @return Sculpture object or null if file path is incorrect or file is not formatted.
*/
public Sculpture readInputFile(String fileName){
   Sculpture sculpture = new Sculpture();
   try{

         BufferedReader reader = new BufferedReader(new FileReader(fileName));
         int count = 0;
         String line = null;
         double delay = 0;
         int numVertices = 0;
         Graph graph = null;
         InputNode inputNode = null;
         List<SculptureNode> lstSculptureNodes = new ArrayList<>();
         List<SinkNode> lstSinkNodes = new ArrayList<>();
         List<String> inputColorList = new ArrayList<>();
         while ((line = reader.readLine()) != null){
            if(count == 0){
               String[] tokens = line.split(":");
               if(tokens != null && tokens.length > 1){
                     if("delay".equals(tokens[0])){
                        delay = Double.parseDouble(tokens[1].trim());
                     }
               }
            }else if(count == 1){
               String[] tokens = line.split(":");
               if(tokens != null && tokens.length > 1){
                     if("input".equals(tokens[0])){
                        String[] colors = tokens[1].trim().split(",");
                        for(String c: colors){
                           inputColorList.add(c.trim());
                        }
                     }
               }
            }else {

               String[] tokens = line.split(":");
               if (tokens != null && tokens.length > 1) {
                     int id = Integer.parseInt(tokens[0].trim());
                     String[] details = tokens[1].trim().split(" ");
                     if (details != null && details.length > 1) {
                        String coord = details[1];
                        coord = coord.replaceAll("[()]", "")

The program is to read from a text file that has an arbitrary numbe...