The W3C's rule of thumb is that content should only be enclosed within a ____ element if it would appear in the document's table of contents.
A.
B.
C.
D.
Answer: D
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Create the classes RightTriangle and Rectangle, each of which is derived from the abstract class ShapeBase in Listing 8.19. Then derive a class Square
from the class Rectangle. Each of these three derived classes will have two additional methods to calculate area and circumference, as well as the inherited methods. Do not forget to override the method drawHere. Give your classes a reasonable complement of constructors and accessor methods. The Square class should include only one dimension, the side, and should automatically set the height and width to the length of the side. You can use dimensions in terms of the character width and line spacing even though they are undoubtedly unequal, so a square will not look square (just as a Rectangle object, as discussed in this chapter, won’t look square.) Write a driver program that tests all your methods. This project is most easily written by modifying the programs in the text. Base RightTriangle.java on Triangle.java (Listing 8.14), Rectangle.java on Rectangle.java (Listing 8.13), and MoreGraphicsDemo.java on TreeDemo.java (Listing 8.15). Square.java is derived from Rectangle, so it is just a matter of using the parent’s methods with both height and width set to the length of the side of the square. Note that special attention is required to draw the correct figures when the base, width, or height values are either 0 or 1.
?Which of the following is a guideline for preparing an effective slide presentation?
A. ?Use numbers rather than bullets, unless showing a specific sequence. B. ?Display at least three topics per slide. C. ?Use appropriate point sizes for titles and body text. D. ?Read the slides to the audience during the presentation.
Case-Based Critical Thinking Question ? Berndt's aunt runs a catering business. Berndt helped her build a website, and now he is helping her to incorporate social media into the site. Berndt's aunt has a video review made by a satisfied client, and she would like to incorporate the video into the website as well. Which of the following is a dedicated video hosting site?
A. Facebook B. Twitter C. YouTube D. Instagram
When might a nonauthoritative AD restore be performed?
What will be an ideal response?