//asa obtin handler-ul de fisier
   private FileReader getFileHandler() {
        FileReader fileReader;
        try {
            fileReader = new FileReader(filename);
        }
        catch(FileNotFoundException e) {
            System.err.println("Caught IOException: " + e.getMessage());
            return null;
        }
        return fileReader;
    }
//asa obtin urmatorul int
private int getNextInt(FileReader fileReader) {
        int buffer;
        try {
            buffer = fileReader.nextInt();
        }
        catch(IOException e) {
            System.err.println("Caught IOException" + e.getMessage());
            return readERR;
        }
        return buffer;
    }

//asa obtin urmatorul string
private String getNextString(FileReader fileReader) {
        String buffer;
        try {
            buffer = fileReader.nextWord();
        }
        catch(IOException e) {
            System.err.println("Caught IOException" + e.getMessage());
            return null;
        }
        return buffer;
    }