Question

I’d like to generate a CSV file from a list of custom objects.

I have an abstract class:

public abstract class MyClass{
    public static final String SEPARATOR = ";";

    // many private variables

    @Override
    public String toString(){
        // return all my variables values separated by SEPARATOR
    }
}

and several concrete classes that inherit from this class.
I’d like to implment the toString() method only in this class, without re-implement in each concrete class.

Is there any useful library to acheve this or do I have to implement manually toString() method for each class? Should I use reflection?

Answer 1

There is a library similar to your requirements by the name of opencsv