public void actionPerformed(ActionEvent e) { JButton b = (JButton) e.getSource(); if (b.getActionCommand().equals("OK")) { if (checkPW(MainFrame.getUser())) { System.out.println("Correct"); } else { System.out.println("Wrong"); MainFrame.setPW("", true); } } else if (b.getActionCommand().equals("EXIT")) { System.exit(0); } else { MainFrame.setPW(b.getText(), false); } }