Placing a wall around a player

I don't know what to do, really, even though this should be a straightforward thing:
I need to have it so when a player types a command, a wall (doesnt matter the material) gets placed around them. One block in front of them, one behind, to the left and right. No corners.
I have:

PHP:

Player player = (Player) sender;
            Material block = Material.STONE;
                if (args.length == 1){
                    Location plocation = player.getLocation();        
                    Location blockLocationX = plocation.add(1,0,-1);
                    Location bLocationY = plocation.add(0, 0, 1);
                    bLocationY.
                    blockLocationX.getBlock().setType(block);

Now I know this isn't complete, but when I try to run this, it combines the two locations (bLocationX and Y) and places only one block. I don't know why.

 

I think that your adding the cords to the location, THEN setting its location to the blockLocationX, it then merges into bLocationY because plocation still contains the values given when used in blockLocationX.

 

So any idea how I could rectify the issue?

 

Code:java

 
Location bLocationX = player.getLocation();
bLocationX.add(1,0,-1);
Location bLocatuonY = player.getLocation();
bLocationY.add(0,0,1);
 

That should work

 

Or, in alternative of what SirTyler said above, use your code but add 'clone()' after the location.

 

thanks guys

Argh new issue. How do i make a command sequence loop twice?
For example,
place a block, remove it, then place it again, remove it and stop
That is, it places the block, then removes it, twice

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

 

Might wanna checkout task stuff.

http://wiki.bukkit.org/Scheduler_Programming