What does it mean for a class to be declared as final? What does it mean for a method to be declared as final?
What will be an ideal response?
A method declared as final cannot be overridden by any subclass. A class declared as final can not be
extended via inheritance.
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A security administrator has been assigned to review the security posture of the standard corporate system image for virtual machines. The security administrator conducts a thorough review of the system logs, installation procedures, and network configuration of the VM image. Upon reviewing the access logs and user accounts, the security administrator determines that several accounts will not be used in production.Which of the following would correct the deficiencies?
A. Mandatory access controls B. Disable remote login C. Host hardening D. Disabling services
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