Windows Media Center can be used to view which one of the following?
A) network printers B) upcoming concert tours
C) flight status information D) online television
D
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Extend the Painter application to enable a user to change the size and color of the circles drawn (Fig. 21.34). This application will use an ArrayList to keep track of the data for all previously drawn circles (as in the Screen Saver application). Each time the paintComponent method is called, draw all previously drawn circles.
a) Copying the template to your working directory. Copy the C:Examples Tutorial21ExercisesAdvancedPainter directory to your C:SimplyJava direc- tory.
b) Opening the template file. Open the PainterJPanel.java file in your text editor.
c) Coding the mouseDragged event handler. Inside the mouseDragged event handler (lines 30–32), add code to call the painterJPanelMouseDragged method with the argument event. You will declare this method in the next step.
d) Declaring the painterJPanelMouseDragged method. After the paintComponent method, add the method header for painterJPanelMouseDragged. This method should be declared private, return void and take a MouseEvent object as its param- eter. Inside the painterJPanelMouseDragged method, add an if…else statement to test if the right mouse button was pressed. If the right mouse button was pressed,
create a new Circle object and assign it to instance variable newCircle. The Circle
constructor should take the diameter of
If a shape in the Selection pane has a closed eye symbol to its right, the shape will ________
A) be deleted B) NOT be displayed on the slide C) have all formatting removed D) be displayed on the slide
A check box is a type of ActiveX control that the person filling in a form can select to indicate a choice
Indicate whether the statement is true or false
________________is the process of confirming or denying that a claimed identity is correct by comparing the credentials with references previously proven and stored.
Fill in the blank(s) with the appropriate word(s).