Deop All Ops Code?

[DatSuperSalmon]

I've searched this on google, asked on Y!A and I still can't find this.
I just made a plugin that gives op on command, but I want to know what the code is where you type in a certain command and it deop all people who are currently op. If I can get my question solved, I will post my final plugin on the site for you all to use.
Thanks

[RandomAmazingGuy]

I've never used Bukkit's API, but the principle is something like this:

for(Player p: PlayerList){

if(p.isOp() && p != commandSender)
Server.deop(p);
}

}

[GM-Hacker]

That only deops OPs that is online. You need to use

for (OfflinePlayer p : getServer().getOperators()) {
    p.setOp(false);
}