A technician has recently purchased a maintenance kit to be installed in a laser printer. Which of the following will be included in the maintenance kit?
A. Pickup rollers
B. Paper tray
C. Toner
D. Compressed air
Answer: A. Pickup rollers
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Write an application that mimics the behavior of a screen saver. It should draw random shapes onto a black background and the shapes should build up on top of each other until the screen saver resets (every 30 seconds). You have been provided with a Screen Saver application that does not yet display outlined shapes. It uses the MyRectangle and MyOval classes that you created in this tutorial. Add the code that will display random outlined shapes in your output. Your output should look like Fig. 27.34.
a) Copying the template to your working directory. Copy the C:Examples Tutorial27ExercisesAdvancedScreenSaver directory to your C:SimplyJava directory.
b) Opening the template file. Open the MyRectangle.java file in your text editor.
c) Adding an instance variable to the MyRectangle class. At line 7, add a comment indicating that the instance variable is a boolean and will indicate whether or not the rectangle is filled. At line 8, add a private instance variable named filled of type boolean.
d) Modifying the MyRectangle constructor. You will now modify the MyRectangle constructor so that it can accept an additional boolean argument. At line 12, add a boolean argument named fill to the end of the parameter list. At line 16, set the instance variable filled equal to the value of parameter fill and on the same line, add a comment indicating that filled will specify if the shape will be filled.
e) Modifying the draw method. At line 31, add a comment indicating that an if statem
An advantage of using information in a database is that _______.
a) the data can be updated in real time b) information that changes need be updated only in one location c) Both a and b. d) None of the above.
Comments can be printed; annotations cannot
Indicate whether the statement is true or false
Which of the following views provides you with the option to view data while making design and layout changes?
What will be an ideal response?