Your first step in this lab should be to add instructions to the body of the "begin" method to create the pop-up menu that will eventually be used to determine whether the scrollbars alter the text or background color.
The code to add the "Choice" will have much in common with the code to add the Sliders. You will need to make up a name for the Choice and declare/introduce this name before all the applet's methods as we have declared the names for the Sliders. You will need to create a new Choice using the "new" constructor. This will be a bit easier than it was for the Sliders since the constructor for Choices does not expect any parameters. You will, however, need to include two instructions to add the items "Text" and "Background" to the choice. Finally, as with the Sliders, you will need to "add" the choice to the applet. At this point, you should run you applet to verify that the Choice appears as expected. You should be able to move the scrollbars or select items from the menu. These actions, however, will have no effect on the screen display at this point.