The ____________________ function can be used to determine if a variable contains values.
Fill in the blank(s) with the appropriate word(s).
empty()
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In Java, a derived class can have ________ base class(es).
a. one b. two c. three d. there is no limit
[CD] Briefly describe each element type declaration:
``` a) b) c) ```
The ____ tab enables you to select the number of copies to print, a printer, the parts of the worksheet to print, and the way the printed worksheet will look.
A. Selection B. Print Now C. Print D. Output
To prevent ESD, which two of the following are the most effective? (Select two.)
A) Use an antistatic wrist strap. B) Use antistatic spray on a lint free cloth and apply to the monitor. C) Use antistatic spray or diluted fabric softener on carpet. D) Put the computer on an antistatic mat. E) Touch the computer once on a metal part before you remove any component. F) Place the disconnected power cord between you and the computer if you do not have an antistatic wrist strap.