public static void main(String[] args) throws FileNotFoundException {
    File file = new File("ValidInvalid.txt");
    String line;
    String[] Title = new String[100];
    String[] Seller = new String[100];
    String[] Writer = new String[100];
    int[] Price = new int[100];
    int[] BarcodeNum = new int[100];

    int counter = 0;
    if (!file.exists()) {
        System.out.print("File not found.");
        System.exit(0);
    }
    try {
        Scanner read = new Scanner(file);
        while (read.hasNextLine()) {
            line = read.nextLine();
            String[] words = line.split(" - ");
            Title[counter] = words[0];
            Writer[counter] = words[1];
            Price[counter] = Integer.parseInt(words[2]);
            Seller[counter] = words[3];
            BarcodeNum[counter] = Integer.parseInt(words[4]);
            System.out.println(Title[counter] + Writer[counter] + Price[counter] + Seller[counter] + BarcodeNum[counter]);
            counter++;
        }
        read.close();
    } catch (NumberFormatException error) {
    }
}

while(read.hasNextLine())
  {
      line = read.nextLine();
      String[] words = line.split("-");
      if(words.length == 5)
      {
          Title[counter] = words[0].matches("\s+") ? "No Title" : words[0];
          Author[counter] = words[1].matches("\s+") ? "No Author" : words[1];
          Price[counter] = !words[2].matches("\d+") ? 0 : Integer.parseInt(words[2]);
          Publisher[counter] = words[3].matches("\s+") ? "No Publisher" : words[3];
          ISBN[counter] = !words[4].matches("\d+") ? 0 : Integer.parseInt(words[4]);
          System.out.println(Title[counter] + Author[counter] + Price[counter] + Publisher[counter] + ISBN[counter]);
          counter++;
      }
      else
      {
          System.out.println("Invalid Data format: " + line);
      }
  }