如何将文件中的多个对象读取到arraylist？

Question

I'm trying to read all objects from a file and saving it to and array. But, I get a StreamCorruptedException. Another question: it is unrelated : Whenever I view the file with objects stored in it, it's in Object language. Is it possible to turn it to human readable language?

public void generateLibReport() throws IOException, FileNotFoundException, ClassNotFoundException{

    ObjectInputStream ois = new ObjectInputStream(new 
    FileInputStream("LibrarianFile.txt"));
    boolean check = true;
    ArrayList<Librarian> array = new ArrayList();
    while(check){
        try{
            Librarian librarian = (Librarian)ois.readObject();
            array.add((Librarian)librarian);
        }
        catch(EOFException e){
            for(Librarian l:array){
            System.out.println(l);
            }
            check = false;
            ois.close();
        }
    }
}

Answer 1

If you want to use readable language, try save objects in JSON format.

For example use Gson library.

void save(List<Librarian> libs) {
    String json = gson.toJson(libs);
    //save json text in simple text file
}

List<Librarian> load(String filename) {
    //read text file to json variable
    String json = ...;
    return gson.fromJson(json, new TypeToken<List<Librarian>>(){});
}

This way solve both questions.