code error apeared

public boolean LocationTest(Player player, World world) throws SQLException {
        Location locatie = new Location(player.getWorld(), 0, 0, 0);
        String worldSt = world.getName();
        String worldname = "";
        String uuid = player.getUniqueId().toString();

        if (worldSt == "survival") {
            worldname = "survival_loc_store";
        } else if (worldSt == "ASkyBlock") {
            worldname = "skyblock_loc_store";
        }

        // getting the location of the player if he was in these worlds
        PreparedStatement statX = plugin.connection
                .prepareStatement("SELECT locX FROM revent." + worldname + " WHERE name = ?;");
        statX.setString(1, uuid);
        locatie.setX(Double.parseDouble(statX.executeQuery().getString(1)));

        if (locatie == new Location(player.getWorld(), 0, 0, 0)) {
            return false;
        } else
            return true;

    }