public void updateInfo() { try { for (int i = 0; i < 2; i++) { for (Iterator t = committee.getReport().iterator(); t.hasNext(); ) { if (t.next() instanceof String) { } else { for (Iterator d = ((ArrayList) t.next()).iterator(); d.hasNext(); ) { jTextArea1.setText(jTextArea1.getText() + "\n" + (String) d.next()); } } } } for (int i = 2; i < 6; i++) { jTextArea1.setText(jTextArea1.getText() + "\n" + (String) committee.getReport().get(i)); } } catch (Exception e) { e.printStackTrace(); } }