import java.io.*;

public class Scores3 
{
    public static void main (String [ ] args) 
    {
        final String IN_FILE_PROMPT = 
		"\nPlease enter the name of the input file: ";

        final String OUT_FILE_PROMPT = 
		"\nPlease enter the name of the output file: ";

        final String HEADING = "Here are the test scores:";

        final String RESULT = "\n\nThe sum of the scores is ";

        final String DONE = "\n\nThe execution of this project has ended.";

        BufferedReader keyboardReader,
                       fileReader;

        PrintWriter fileWriter = null;

        try
        {
        	boolean filesOK = false;
        	while (!filesOK)
        	{
            		try
            		{
                		keyboardReader = new BufferedReader
                                           (new InputStreamReader (System.in));

                		System.out.print (IN_FILE_PROMPT);
                		fileReader = new BufferedReader
                                            (new FileReader (keyboardReader.readLine()));

                		System.out.print (OUT_FILE_PROMPT);
                		fileWriter = new PrintWriter (new BufferedWriter
                                    (new FileWriter (keyboardReader.readLine())));

                		String line;

                		int sum = 0;

                		fileWriter.print (HEADING);
                		while (true)
                		{
                     			line = fileReader.readLine ();
                     			if (line == null)
                         			break;
                     			fileWriter.print ("\n" + line);
                     			try
                    			{
                      				sum += Integer.parseInt (line);
                    			} // try for NumberFormatException
                    			catch (NumberFormatException e)
                			{
                  				fileWriter.print (" " + e);
                			} // catch NumberFormatException
                		} // while more scores in input file
                		fileWriter.println (RESULT + sum);                
	     			filesOK = true;	     		
                		System.out.println (DONE);
            		} // try
            		catch (IOException e)
            		{
                 		System.out.println (e);
            		} // catch	 	 
        	} // while files not OK
       } // try
       finally
       {
 		fileWriter.close();
       } // finally 
    }  // method main

} // class Scores3