Default Values in Java similar to python

I am working on making one of my projects more streamlined. I have a way that checks if a parameter of a function is empty by doing a bunch of if statements. I was wondering if there is a more elegant solution similar to default values in python? I have posted my current code below. Thanks!

I looked into ways about setting default values similar to python but java sadly doesn't support that.

/**

     * Updates a user defined address on the mySQL server
     * @param conn The mySQL connection
     * @param id The id of the address
     * @param number The new house number 
     * @param name The new street name
     * @param city The new city
     * @param state The new state
     * @param zip The new zip code
     */
    public static void update(Connection conn, int id, String number, String name, String city, String state, String zip) {

        Address address = Address.getBy(conn, "id", Integer.toString(id));
        if(number.equals("")) {
            number=address.getNumber();
        }
        if(name.equals("")) {
            name=address.getName();
        }
        if(city.equals("")) {
            city=address.getCity();
        }

        if(state.equals("")) {
            state=address.getState();
        }
        if(zip.equals("")) {
            zip=address.getZip();
        }
        try {
            PreparedStatement ps = conn.prepareStatement("UPDATE address SET number=?, name=?, city=?, state=?, zip=? WHERE id =?");
            ps.setString(1, number);
            ps.setString(2, name);

            ps.setString(3, city);
            ps.setString(4, state);
            ps.setString(5,zip);
            ps.setInt(6, id);
            ps.executeUpdate();
        }catch (Exception e) {
            e.printStackTrace();
        }
    }