How to run save world command?

I want to save world when i rightclick sign

Code:

    @EventHandler
    public void onPlayerInteract(PlayerInteractEvent e){
        if(e.getAction() == Action.RIGHT_CLICK_BLOCK)
        {
            if(e.getClickedBlock().getState() instanceof Sign)
            {
                Sign s = (Sign) e.getClickedBlock().getState();
                if(s.getLine(0).equalsIgnoreCase("[Save]"))
                {
                    //Code to save World
                {
            }
          }

How to do that?

 

How about world.save() ?

 

What variable is world?

Code:

org.bukkit.World world = //What to write here?
world.save();

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

= Bukkit.getWorld(String worldname); // Desired world what match the name
= Bukkit.getWorlds().get(0); // Default world

http://jd.bukkit.org/rb/doxygen/d4/da9/interfaceorg_1_1bukkit_1_1Server.html

 

Do you want to save all the worlds (or just a specific world)?

 

Gigi10012
To save all (LOADED) worlds:
Bukkit.dispatchCommand(Bukkit.getConsoleSender(), "save-all");

To save the players world:
e.getPlayer().getWorld().save();

 

thanks

 

Code:java

 
for(World worlds: Bukkit.getWorlds()) {
    worlds.save() 
}