Right Click Sign & Change Sign Text?

Hello, I want to make it so when you right click a sign it does something, I'm unsure how to though. I was wondering as well how I could change the text of a sign?

 

yea use
sign.setLine(1,"YOURTEXT");
just a example

 

I know that, but how do I do the right click thing? I tried player interact but it didn't work.

 

Kyle FYI
Use the PlayerInteractEvent and check the action if its right click block.

 

next time reply my message then I'll see it faster
and here's a code might help you a little bit:

Code:java

    @EventHandler
    public void onPlayerClickSign(PlayerInteractEvent event){
        Player player = event.getPlayer();
        if(event.getClickedBlock().getType() == Material.SIGN ||event.getClickedBlock().getType() == Material.SIGN_POST ||event.getClickedBlock().getType() == Material.WALL_SIGN){
            if(event.getAction() == Action.RIGHT_CLICK_BLOCK){
            //^^ choose actions ^^
                Sign sign = (Sign) event.getClickedBlock().getState();
                //^^ .getState(); really important
                if(sign.getLine(1).equalsIgnoreCase( "YOURTEXT")){
                    }
                    }
                }
            }

 

CakeProgrammer I think using
String[] lines = sign.getLines();
works better than
sign.getLine(0-3).equalsIgnoreCase("string")

 

did you try updating the sign after using the setting the line by doing sign.update()