3. 7

The core building blocks or fundamental components of android are activities,
views, intents, services, content providers, fragments and AndroidManifest.xml.

An activity is a class that represents a single screen. It is like a Frame in AWT.

A view is the UI element such as button, label, text field etc. Anything that you see is a
2೩... class Programmer extends Employee{

5. int bonus= 10000;
6 public static void main(String args[]){
7 Programmer p=new Programmer();
8. System.out.printIn("Programmer salary is:"+p.salary);
9 System.out.printIn("Bonus of Programmer is:"+p.bonus);

Android Core Building Blocks

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An android component is simply a piece of code that has a well defined life cycle e.g. Activity,
Receiver, Service etc.

Activity