Suggest at least three data validation rules that might help reduce input errors for the video rental system.
What will be an ideal response?
Students might suggest several of the data validation checks starting on page 250. For example, an existence check would prevent empty data fields; a data type check would prevent inappropriate data entry (such as alphabetic data in the Member Number field); and a reasonableness check would set suitable limits in the Fee field.
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What will be output from the following code:
``` public void t e s t 7 ( ) { int x = 1 2 ; int y = 0 ; while ( x < 10 j j y < 1) { x = x + 1 ; y = y + 1 ; System . out . p r i n t l n ( x + " , " + y ) ; } ```
What does the following code display?
Console.WriteLine("*\n**\n***\n****\n*****");
The item across the bottom of the accompanying figure is the ____________________ timeline.
Fill in the blank(s) with the appropriate word(s).
Which of the following allows hiring managers to learn more about you beyond what you can convey in a traditional one-page paper resume?
A. head hunter B. twitter account C. personal online resume D. professional online presence