Develop Reference

How to create POJO if I don't have a json?

I want to parse website using retrofit, but I don't know how to create POJO.
And I don't have a json.
http://vuzopedia.ru/vuz/
This is the website where I want to parse information.

if your website does not have an API or anyway to get JSON data then you should consider Web Scraping. You cant make POJO/Models without JSON Data

How to get JSON from URL with Get Request?

i'm new to android coding, and i was wondering if you can get a JSON from a webpage with Get Request(eg. http://xxx.xx.xx.xxx/test) and get specific fields in that JSON?
And How can I Do that?

Yes, you can use the volley library or asynctask for connecting to a webservice and getting the JSON objects/array or string.

How to send object through HttpURLConnection without using json in android?

Is it possible to send user defined objects through HttpURLConnection without using json in android ? For example: I am creating one class and I want to send that class object without using json. Is it possible? If it is, how to proceed?

Yes, it is possible, but you have to write/read data into streams manually. That is why JSON is good way for doing that- all data is already formatted and is in String representation. If you don't want to bother yourself with parsing objects to/from Json, use Gson library from Google

Simple Android JSON Parsing

Hello, I am a newbie to android development
I am trying to understand how to parse JSON in android activity
I am not using anything such as PHP etc
I am using NODEJS on server in AWS to generate JSON
I have a JSON ::
{"1":"Hello","2":"World"}
This JSON is coming from an AWS server i have hosted my application
How to parse the JSON data for above JSON ?
How to populate to an android activity ?
PS:: Any links that would help me understand this concept would also be helpful
Thanks,

In the most basic form, you can parse JSON by simply creating a JSON object and passing the string representation of the JSON object to the constructor, like so...
JSONObject myJson = new JSONObject("{\"1\":\"Hello\",\"2\":\"World\"}");
Read the docs on this class for more info on how to extract data from objects and etc... https://developer.android.com/reference/org/json/JSONObject.html
A more abstract way of parsing can be done via the GSON library. In a nutshell, GSON has the ability to take your JSON response and parse it into a Java object for you so that you don't have to do it yourself.
Admittedly using GSON can save a good amount of time from writing code to parse yourself, however, I would probably rather go the JSONObject route if you're new to this.

Android communicating with web server data

I am writing a android application to read a php script in my LAMP server which display the data inside mysql database. The php script simply fetches all rows inside my database table.
I would like to ask if there is any method to parse the information of the php script and set the textview inside the application with the information fetched.
Should my php script echo the data in text, array or JSON format?
What methods or direction should I follow to fetch and parse the data into my android application?
Thanks

I think that JSON is the best format to use, as there are good JSON libraries around .
If you use a JSON library such as Gson or Jackson you can have the library map the JSON recieved from your php script to a Java domain class. So the library will parse the JSON and create an instance of your Java class for you.
Then it is easy to fill your textview with the values from your java object.

The above answer gives the details about what you may do in your app to parse the JSON data . I would like to add more details regarding how you can create the JSON object inside your php files . You may use the json_encode php function to convert the data that you get from your database into a JSON format .
PHP json_encode official documentation with exampes