java plugin

//The declaration
ArrayList<Block> blockArray = new ArrayList<Block>();
moveBlocks(blockArray,world,1,0,0);
//And moveBlocks
public void moveBlocks(ArrayList blockArray,World world,int x,int y,int z){
        int i;
        Block block;
        for(i=0;i<blockArray.size();i+=1) {
            block = blockArray.get(i);
            world.getBlockAt(block.getX()+x,block.getY()+y,block.getZ()+z).setType(block.getType());
            block.setType(Material.AIR);
        }
    }