Write/Read ArrayList

Hi

First: I wanna store each player who join in a array list and save them in a file as object like so:

PHP:

    private void saveList(){
        File joinListFile = new File(getDataFolder().getPath(), "joinList.yml");
        try {
            FileOutputStream fops = new FileOutputStream(joinListFile);
            ObjectOutputStream oos = new ObjectOutputStream(fops);
            oos.writeObject(joinList);
        } catch (FileNotFoundException e) {
            log.info("Cant save joinList to \"joinList.yml\" file!");
        } catch (IOException e) {
            log.info("Cant save joinList to \"joinList.yml\" file!");
        } 
    }

This works without a problem. Now i wanna read them and create a arraylist object. And this doesn't work.

PHP:

    public void readList(){
        File joinListFile = new File(getDataFolder().getPath(), "joinList.txt");
     
        if(joinListFile.exists()){
            try {
                FileInputStream fips = new FileInputStream(joinListFile);
                ObjectInputStream oips = new ObjectInputStream(fips);
                try {
                    joinList =  (ArrayList<String>) oips.readObject();
                } catch (ClassNotFoundException e) {
                    log.info("Cant read joinList from \"joinList.yml\" file!" + e);
                }
            } catch (FileNotFoundException e) {
                log.info("Cant read joinList from \"joinList.yml\" file!" + e);
            } catch (IOException e) {
                log.info("Cant read joinList from \"joinList.yml\" file!" + e);
            }
        }
     
    }

What did i wrong, or is there a easyer method to save players ?

 

"This doesn't work".
Yeah, that really helps...

Show us some errors, or atleast explain why it's not working..

 

Sry, there are no errors, maybe made a mistake in the player listener.

PHP:

if(!plugin.joinList.contains(p.getName())){
                    //DO Stuff cuz 1st join!
                    plugin.joinList.add(p.getName());
                }

EDIT:
I think in the readList() function is the problem

 

Just compare these two lines from the codes you posted:

BTW: you should not save an object as a .yml as .yml is used for YAMl files already, but use e.g. '.obj' or something similar.

 

Yeah. Thx Njol, I don't see anything if i watch since 8 hours in the screen -.-