(1) What is Android ?
Ans:- Android is an open-source, Linux-based operating system that is used in mobiles, tablets, televisions etc.
(2) Who is the founder of Android ?
Andy Rubin.
3) What are the code names of android?
1. Aestro 2. Blender 3. Cupcake 4. Donut 5. Éclair 6. Fro yo 7. Gingerbread 8. Honeycomb 9. Ice Cream Sandwich 10. Jelly Bean 11. Kitkat
(4) What are the advantages of android?
Ans:-Open-source: It means no licence, distribution and development fee.
Platform-independent: It supports windows, mac and Linux platforms.
Supports various technologies: It supports camera, bluetooth, wifi, speech, EDGE etc. technologies.
Highly optimized Virtual Machine: Android uses highly optimized virtual machine for mobile devices, called DVM (Dalvik Virtual Machine).
(5) Does android support other language than java?
Ans:-Yes, android app can be developed in C/C++ also using android ND K (Native Development Kit). It makes the performance faster. It should be used with android SDK.
(6) What are the core building blocks of android?
Ans:-The core building blocks of android are: • Activity • View • Intent • Service • Content Provider • Fragment etc
.(7)What is Activity ?
Ans:-Activity is a single screen in supporting java code that is called a activity
(9) What is view in android ?
Ans:- A view is it the UI element such as button label tablet etc Anything that you see is a view.
(10)What is Intent ?
Ans:- Notification message to the user from android embed device can be display using intent that is called a intent. ?
(11)What is Service
Ans:-A service is a background process process that can run for a long time that is call a service .There are two types of services local and remote. Local service is accessed from within the application whereas remote service is accessed remotely from other applications running on the same device.
(10)What is Fragment ?
Ans:
Ans-Fragment is a part of Activity by the help of fragment, we can display multiple screen on one activity that is call a fragment .
(12) What is Content Provider?
Ans:-Content Provider or used to share data between the applications, that is called a content Provider.
