(Using Android Studio)

Create a java app with a simple UI that has some functionality.:

Include at least one input (strings or numbers). Keep in mind that the input must require validation.

Include at least two activities: one input activity where the user enters data, and one output activity where results are displayed.

Include at least one button on the input activity that starts the output activity when pressed.

Data entered in the input activity should be passed to the output activity via an intent.

All inputs should be validated.

If the input is invalid, an error message should be displayed (e.g., using a toast).

Include at least one toast.

Include at least one output to the log.

You can write any app you like that meets the requirements above eg, conversion calculator.

Show screenshots of your .java .xml and a working app.