A StackPanel has a vertical or horizontal flow, set by its _____ attribute.

Why are application preferences described as sets of data values that are stored persistently?

a. The application data cannot be erased. b. The application data can only be erased in certain lifecycle events. c. The application data can be lost if you close the application. d. The application can be started and stopped without losing the data.

Which of the following expressions determines whether the char variable, chrA, is not equal to the letter 'A'?

a. chrA == 'A' b. chrA != 'A' c. chrA || 'A' d. chrA.notEquals(A)