If the array 6, 2, 7, 13, 5, 4 is added to a stack, in the order given, which number will be the first number to be removed from the stack?

If an app does not have a needed permission (such as an-droid.permission.WRITE_EXTERNAL_STORAGE), use the built-in ________ method to determine whether an explanation of why the app needs this permission should be displayed.

a. shouldShowRationale b. shouldShowPermissionRationale c. shouldShowRequestRationale d. shouldShowRequestPermissionRationale

Which type of structure has an If/Else instruction that has an empty Else part?

a. Single-alternative decision structure b. Dual-alternative decision structure c. Null decision structure d. Minimum decision structure e. None of these