Which of the following statements is false?
a. You can reuse a class many times to build many objects.
b. The overhead of reusing classes instead of building new ones can discourage re-use.
c. Reuse also helps you build more reliable and effective systems, because existing classes and components often have gone through extensive testing, debugging and performance tuning.
d. Just as the notion of interchangeable parts was crucial to the Industrial Revolution, reusable classes are crucial to the software revolution that has been spurred by object technology.
b. The overhead of reusing classes instead of building new ones can discourage re-use.
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A(n) _________ database is very flexible because it can store data for several different but related categories.
Fill in the blank(s) with the appropriate word(s).
A single table can contain at most one
tag.Answer the following statement true (T) or false (F)
Write a script that inputs from the user the radius of a circle and outputs HTML text that displays the circle’s diameter, circumference and area. Use the constant value 3.14159 for p. Use the GUI techniques shown in Fig. 13.6. [Note: You may also use the predefined constant Math.PI for the value of p. This constant is more precise than the value 3.14159. The Math object is defined by JavaScript and provides many common mathematical capabilities.] Use the following formulas (r is the radius): diameter = 2r, circumference = 2pr, area = pr 2.
What will be an ideal response?
An operand is a mathematical symbol
Indicate whether the statement is true or false