You need writing two classes - QuizGUI class and TestBank class. The TestBank class is a simple class with data members (question array, answers array, and an index to indicate which question will be selected randomly), a few of mutator and accessor methods and a method to read a data file. Here we provide a sample program (StudentName class ) which has a similar structure for the TestBank class (see page 3). The QuizGUI class is relatively complicated. It contains the implementation details for the GUI components and a series of operation and event handling. The overall structure of this class is shown as below. import java.io.*; import java.util.*; import java.awt.*; import javax.swing.*;//import others