All AND-801 Test Inside Android Questions

Android Application Development v8 Questions and Answers

Question 5

Check the following image which includes Android code for a sum calculator. Which of the following choices is correct about this Android code?

The sum result will not appear on the app until adding another print out method.

The sum result of N1 and N2 will appear in result_view TextView widget when the user clicks button_sum button.

The sum result will not work, because N1 and N2 must be changed to Integer first.

You must add input method to this code to enter the value of N1 and N2 numbers.

Question 6

Which of the following choices is the main role of the Preview button which is illustrated in the red circle of the vertical Android Studio tool bar?

It shows the activity blue print preview mode.

It shows the Java or Kotlin code of an activity.

It shows the activity layout in print review.

It shows the activity layout in text (XML) and design mode at the same time.