In how many different ways may four persons be seated in a row of four rocking chairs?
Fill in the blank(s) with the appropriate word(s).
24
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Arrow keys can manipulate a JSlider object. Which of the following statements does not correctly describe how the arrow keys are used?
a. The left-arrow and right arrow keys decrease or increase (respectively) the thumb of the JSlider by 1. b. The down-arrow and up-arrow keys decrease or increase (respectively) the thumb of the JSlider by 1. c. The PgDn and PgUp keys decrease or increase (respectively) by block increments of one-tenth of the range of values. d. The Home key and End key move the thumb to the maximum or minimum (respectively) value of the JSlider.
If no exception is thrown, then the _________ is ignored.
Fill in the blank(s) with the appropriate word(s).
This specifies the name of the authoritative name server of the domain.
What will be an ideal response?
How does the level of multiprogramming affect the need for disk scheduling?
What will be an ideal response?