[Solved] NullPointerException Runtimer Error [closed]
[ad_1] The problem is here: contentPane.add(textPane, BorderLayout.CENTER); At this point, you haven’t set up textPane. You set it up 4 lines later: textPane = new JTextPane(); textPane.setBackground(Color.DARK_GRAY); textPane.setEditable(false); textPane.setMargin(null); textPane.setContentType(“text/html”); You need to add it to the pane after initializing. Simple debugging would have fixed this problem for you. SO is not an appropriate place … Read more