JFileChooser to open multiple txt files

Question

How can I use JFileChooser to open two text files and after I selected these files, I want to compare them, show on the screen etc. Is this possible?

Answer 1

In my case I solved it declaring frame as an initialized local variable set to null:

JFileChooser chooser = new JFileChooser();
chooser.setMultiSelectionEnabled(true);

Component frame = null;

chooser.showOpenDialog(frame);
File[] files = chooser.getSelectedFiles();