file-handling javascript, printing sections of a file

[kitty]

I can get this code to take two separate sections of a file which are not beside each other and write them into another file. It always comes up as a single full line of the code instead of the sections I want. The code includes the student number first name last name and three results of assignments. I want the code to write the student number and three results of all the students into a file and then work out the average of the student results. Can you help?

 try{                    
               while (in.hasNextLine())
               {
                  String line = in.nextLine();
                  out.println( line);
                  int i=0;
                  if(!Character.isDigit(line.charAt(i)))  { i++; }
                  studentStringNumber = line.substring(0, i);
                  String stringResult = line.substring(i);
                              	
                  studentStringNumber = studentStringNumber.trim();
                  stringResults = stringResults.trim();
                  double stringResultsValue = Double.parseDouble(stringResults.trim());
                  stringResults = in.nextLine();
                              	
                                 
                  studentStringNumber = in.nextLine();
                  studentNumber = Integer.parseInt(studentStringNumber);
                  if(in.hasNextInt())
                  {
                     int value = in.nextInt();
                  }
               						 					   
                  results = Double.parseDouble(stringResults); 
                  if(in.hasNextDouble())
                  {
                     double value = in.nextDouble();
                  } 
               						               	
                            	
                  Scanner lineScanner = new Scanner(line);
                  studentStringNumber = lineScanner.next();
                  while(!lineScanner.hasNextDouble())
                  {
                     studentStringNumber = studentStringNumber+ " " +lineScanner.next();
                  }
                  stringResultsValue = lineScanner.nextDouble();     
               }
            }

[Philip M]

You seem to be confusing Javascript with some other language (Java???).

String stringResult = line.substring(i);
double stringResultsValue = Double.parseDouble(stringResults.trim());
studentNumber = Integer.parseInt(studentStringNumber);
double value = in.nextDouble();


- none of those (for example) are valid Javascript syntax.

JavaScript is purely a client-side language, and unless used with an Ajax call has no capability to read from or write to a file (except a cookie), communicate with the server or access a database.

All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit.

[kitty]

Originally Posted by Philip M

You seem to be confusing Javascript with some other language.

String stringResult = line.substring(i);
double stringResultsValue = Double.parseDouble(stringResults.trim());
studentNumber = Integer.parseInt(studentStringNumber);
double value = in.nextDouble();


- none of those (for example) are valid Javascript syntax.

JavaScript is purely a client-side language, and unless used with an Ajax call has no capability to read from or write to a file (except a cookie), communicate with the server or access a database.

All advice is supplied packaged by intellectual weight, and not by volume. Contents may settle slightly in transit.

I'm very sorry but i have got mixed up. This is acctually just Java codes not javascript. I'm all very new to this and i didn't know that there was a difference.

I would be delighted if you could still help me or redirect me to another part of the forum that deals with java...

[kitty]

Please delete this as i have moved my question to the appropriate thread.

Thank you.