To install Android Studio, download it from the Android developer website and press Next through the installation process, waiting for components to download. Once installed, create a new blank Android project, name it and your company, then add code to display a "Hello Android" toast message. Select run to launch the app in a device or emulator, completing your first simple Android program.

1. Installation Of
Android Studio

2. Download
Link: https://developer.android.com/sdk/index.html
Download the android studio and start installing it

3. Press Next

4. Wait Until the
downloading
of
Components

5. Press Finish

6. Building a Simple Hello
Android Program

7. Select Start a
new Android
Studio Project

8. Give Your
Application
name,
Company
Domain

9. Press Next

10. Select Blank
Activity and
Press Next

11. Select Finish

12. Your Project
Structure will look
like this

13. Toast.makeText(this,”Hello
Android”,Toast.LENGTH_LO
NG).show(); is added to
show a message

14. Select Run ‘app’ from
the menu bar

15. App will run in the
device, if you want to
run it in the emulator
you have to choose
“Launch emulator”

16. You have successfully
built your first android
app 

17. Thank you