Solved "If" problem

Hello,

Before starting, I want to say that I'm french, so maybe my thread will have some spelling mistakes.

I don't understand why my code doesn't want to work. It only works in one way.
Here is my code :

Code:

    @EventHandler
    public void onJoin(PlayerJoinEvent e) {
       
        Player player = e.getPlayer();
       
        ScoreboardWrapper sc_wrapper = new ScoreboardWrapper(this.getConfig().getString("scoreboard.title").replace("&", "§"));
       
       
        if(this.getConfig().getString("scoreboard.lines.1").length() == 0 ) { // THIS ONE WORKS PERFECTLY
            player.sendMessage(prefix + "Ligne 1 absente.");
        }
       
        if(this.getConfig().getString("scoreboard.lines.1").length() >= 1 ) { // CODE THAT DOESN'T WORK
            sc_wrapper.setLine(1, this.getConfig().getString("scoreboard.lines.1").toString()); //
            player.sendMessage(prefix + "Ligne 1 présente."); //
        } // END OF THE CODE THAT DOESN'T WORK
       
        player.setScoreboard(sc_wrapper.getScoreboard());
       
        }
    public void loadConfiguration() {
        this.getConfig().options().copyDefaults(true);
        this.saveConfig();
    }

So if the line "1" in my config.yml is empty, it shows "Ligne 1 absente.", but if the line "1" is not empty then it doesn't do anything.

Thanks for reading,
Have a nice day !

 

Else doesn't work too. I tried :/

 

I just figured out that there was an error (if it can help) :

Code:

Caused by: java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
        at java.util.ArrayList.rangeCheck(Unknown Source) ~[?:1.8.0_202]
        at java.util.ArrayList.get(Unknown Source) ~[?:1.8.0_202]
        at me.johnnykpl.scoreboardwrapper.ScoreboardWrapper.setLine(ScoreboardWrapper.java:77) ~[?:?]
        at fr.stellarfx.test.Main.onJoin(Main.java:51) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_202]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_202]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot-1.12.2.jar:git-Spigot-e8ded36-acbc348]
        ... 14 more

I don't understand from where is the error..

PS : Tried "getConfig().contains("scoreboard.lines.1"), doesn't work too.

EDIT : It comes from "getConfig().contains("scoreboard.lines.1"), the first line that worked doesn't even work anymore. I put it back to my first method.

 

As I said, it came from "getConfig().contains("scoreboard.lines.1")", so I put it back to the first version.
And here is the method (This API is not mine) :

Code:

   
    public void setLine(int index, String line) {
        if (index < 0 || index >= MAX_LINES)
            throw new IndexOutOfBoundsException("The index cannot be negative or higher than 15.");
        String oldModified = modifies.get(index);
        scoreboard.resetScores(oldModified);
        String modified = getLineCoded(line);
        modifies.set(index, modified);
        objective.getScore(modified).setScore(-(index + 1));
    }

EDIT : Modified code

 

Oh yes my bad, I just edited.

 

Omg thank you, it was so logic. Now it works.
Passage of the thread to "Solved".