How to implement an application in Android Studio?

Question

Java

Is it possible to make it so that when I open the application, let's say one picture is shown (If there is an Internet connection), if there is no Internet connection, another one is shown?

Answer 1

The plan is something like this:
Go to google:
1) Installing Android Studio;
2) JDK for Android Studio;
3) Install Android Studio;
4) Android Hello World;
5) Android Activity;
6) Android Display picture;
7) Android Check internet connection;
8) Android Display picture;
9) Android What is Exception;
10) Android Handling Exception;
11) Android Build Release APK;
12) Registration google play developer;
13) Where to earn 25 usd quickly?;