how to assign data from Inner class to out class

Question

i have succesfully parse my JSON data. but now i want data back from following APEX method "getCustomerData()" like below:

DxModel[id=2, [email protected], first_name=clerk, last_name=dx, BillingAddress[city=Chicago, region=IL, postcode=60622, phone=0000000000]]

here is my model class:

global with sharing class DxModel {

    /* inner Classes' Instances */
    public BillingAddress billing_address {get;set;}
    public List<Addresses> addresses {get;set;}
    public String id {get;set;}
    public String email {get;set;}
    public String first_name {get;set;}
    public String last_name {get;set;}

    /* inner class */
    global with sharing class BillingAddress{

        public String city {get;set;}
        public String state {get;set;}
        public String postcode {get;set;}
        public String phone {get;set;}
    }

    global with sharing class Addresses{

        public String city {get;set;}
        public Region region {get;set;}
        public String postcode {get;set;}
        public String telephone {get;set;}              
    }

    global with sharing class Region{

        public String region_code {get;set;}
    }
}

is there any way to assign value from "Region" class and from "Addresses" class to "BillingAddress" class so i can get above output

here is my JSON data:

{"id":2,"created_at":"2016-06-30 09:59:12","updated_at":"2016-06-30 11:11:56","created_in":"Default Store View","email":"[email protected]","firstname":"clerk","lastname":"dx","gender":1,"store_id":1,"website_id":1,"addresses":[{"region":{"region_code":"IL"},"street":["123 main street","1050 Marshfield Ave #3"],"company":"Jhon DX","telephone":"0000000000","postcode":"60622","city":"Chicago","firstname":"clerk","lastname":"dx","default_billing":true}

This is my APEX method:

public List<DxModel> getCustomerData(){

    parser = JSON.createParser("My JSON DATA");                   
    List<DxModel> customerList = new List<DxModel>();        
    while (parser.nextToken() != null) {
        if (parser.getCurrentToken() == JSONToken.START_ARRAY) {
            while(parser.nextToken() != null)  {
                if(parser.getCurrentToken() == JSONToken.START_OBJECT) {                
                    DxModel customer = (DxModel)parser.readValueAs(DxModel.class);
                    customerList.add(customer);
                }
            }
        }
    }               
    return customerList;
}

Answer 1

Once you have the apex Object ,you can treat like a normal object and extract values via simple object.properties

List<DxModel> lstDxModels = getCustomerData();
for(DxModel dxmodel:lstDxModels ){
   system.debug(dxmodel);
   system.debug(dxmodel.addresses); 
   for(Addresses add :dxmodel.addresses){
      system.debug(add.Region.region_code);
   }
   //Your BillingAddress is a single object while your apex object returns an error 
   //you can use dxmodel.addresses[0] to get first element if list has only one element
}