Help with reading file

Hello guys. Im doing a plugin where i put players in list depending on their permissions and then I am saving those lists on a file. However, I cant load it. When I save it, the text file is saved like this:

group*
uuid!
uuid!
group*
uuid!

When I try to read it, I set a string and then when iterating through the lines I set the string to the group im interating:

Code:

public static void loadPermissions(){
        try(BufferedReader br = new BufferedReader(new FileReader(saveTo))) {

            String permission = null;

            for(String s; (s = br.readLine()) != null; ) {
                if(s.endsWith("\\*")){
                    s.replaceAll("\\*", "");
                    permission = s;
                }else if(s.endsWith("\\!")){
                    s.replaceAll("\\!", "");
                    if(permission.equalsIgnoreCase("dono")){
                        dono.add(s);
                    }
                    if(permission.equalsIgnoreCase("mod")){
                        mod.add(s);
                    }
                    if(permission.equalsIgnoreCase("vip")){
                        vip.add(s);
                    }
                    if(permission.equalsIgnoreCase("normal")){
                        normal.add(s);
                    }
                }
            }
            FileOutputStream writer = new FileOutputStream(saveTo);
            writer.write(("").getBytes());
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

But when it tries to read the name the String permission is still null.
Please help me! Thank you.

 

This one is supposed to be just the first file, I want to create multiple ones and I thought this way was the easiest one.

 

If you really don't wanna use YML, you can use JSON


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