SriMaddy

https://developers.google.com/admob/android/rewarded-video
https://developers.google.com/admob/android/quick-start
https://developers.google.com/admob/android/interstitial
https://developers.google.com/admob/android/test-ads

SriMaddy

⁠⁠⁠public void NetworkCall() {
        RequestQueue queue;
        StringRequest stringRequest;
        queue = Volley.newRequestQueue(getApplicationContext(),new HurlStack(null, createSslSocketFactory()));
        stringRequest = new StringRequest(Request.Method.POST, "https://www.thehellofood.com/restaurantapi/getFoodItems", new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                try {
                    Log.e("response", response);
                } catch (Exception e) {

SriMaddy

-> No SQL (Non-Relational, full of documents)
-> Database - Database, Table - Collection, Tuple - Document, column - field, table join - document embed
-> unique id for every object
-> id will be 12 byte hex, 4 = timestamp, 3 = machine id, 2 = process id of mongo server, 3 = incremental value

SriMaddy

-> HTTP request are handled by controller.
-> @RestController over class
-> @RequestMapping("/path", METHOD=GET/POST....) over method
-> @RequestParam(value="name", defaultValue="Some Default Values") : these are query string params in url/ by default its set to required = false
-> java.util.concurrent.atomic.AtmoicLong is counter which returns specified Rest Object
-> Now converting object to JSON by MappingJackson2HttpConverter which is inside spring's Jackson2.

SriMaddy

-> light weight framework used to build any type of java apps
-> its non-invasive : does not force a programmer to extend any predefined class (like struts)
-> features :
            -> simplicity (non-invasive)
            -> testability (no need server/container)
            -> lightly coupling

-> modules in spring 1.x :
                          -> core module
                          -> context module (J2EE)

SriMaddy

Classical inheritance :
	Message delegation to another object if one object is not respond to message.
	
-> find abstraction and create abstract class.
-> Unresponsed messages are automatically delegated(forwarded) to its super class and so on.

SriMaddy

Duck Typing :
	-> Abstract class / interface 
	-> To make code to be easy to change
	-> increases flexibitlity

Statically Typing VS Dynamically Typing

Meta Programming : Writing code that writes code

SriMaddy

Interface : method inside class which should be communicate with other objects with clear message pattern.
Ex : Kitchen 
	-> serve() is necessary but cookingManner() is not necessary.
	-> Make them appropriate private or public interfaces
	
Use UML, Sequence diagram
Ask for what not for how
Reduce Law of demeter(Message chaining)

SriMaddy

Class : Doing possible smallest thing
Change : 
	-> no side effects
	-> small change in requirement require small change in code
	-> existing code should be easy to reuse
	-> add code that in itself must be easy to change further
TRUE princliple
High cohesion : High single ersposibility
Depend on behaviour not on data.
Hide Data Structures(cell[0]: rim, cell[1]: tire)

SriMaddy

Recognize Dependency : 
	-> A class has another class
	-> calls method in another class
	-> Args that message(method) requires. Gear knows Wheel.new 
requires rim and tire as well as order of Args.

More coupling -> More dependency
Tightly coupled two objects act as single entity
Avoid message chaining on different objects
If you cannot remove dependency from class just isolate them.