The condition that controls a Do While loop must be true for the loop to be executed.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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  1. The condition that controls a Do While loop must be true for the loop to be executed.
  2. Checkboxes are used in designing the user interface for situations where the user may choose only one of a few choices.
  3. Boolean variables are often used to improve the readability / clarity of the program code.
  4. For Next loops can have both negative and positive step values.
  5. If no item has been selected in a listbox, the SelectedIndex property of the listbox will have a value of zero.
  6. A Boolean variable must be initialized after the If instruction in which it is used is executed.
  7. A post-test loop is a loop that is designed to be executed at least once.
  8. In coding a Select Case instruction, the only thing that may appear after the Select Case keywords is a variable.
  9. A Do loop begins with the keyword Do and ends with the keyword Loop.
  10. The condition that controls a Do Until loop must be true for the loop to be executed.
  11. Radio buttons are used in designing the user interface for situations where the user may choose only one of a few options.
  12. The SelectedItem property of a listbox will be True if an item in the listbox is currently selected.
  13. The Select Case instruction can be used as an alternative to if but can only be used for case if situations.
  14. More than one item can be selected from a set of checkboxes.
  15. More than one item can be selected from a set of radio buttons.
  16. More than one item can be selected from a listbox.
  17. Decision operations / selection structures are implemented using the If and Select Case
  18. The value of a Boolean variable is either True or False.
  19. Do While and Do Until loops are referred to as condition controlled loops.
  20. Only 2 values are used in the execution of a For Next loop, a start value and a stop value.
  21. When a For Next loop terminates, the loop variable will always be equal to the stop value.
  22. An If Then Else EndIf decision structure is required when there are 2 ways of carrying out a processing operation.
  23. A For Next loop will not be executed if the start value is greater than the stop value and the step value is negative.
  24. A variable may be used to represent any of the start, stop and step values in a For Next
  25. The logical operators AndAlso & OrElse are used to combine multiple conditions in a single if
  26. A For Next loop will not be executed if the start value is greater than the stop value and the step value is positive.
  27. A loop should contain both the logic for the repetitious processing to be done as well as logic to ensure that the loop is terminated when all required processing has been completed.

 

TRUE OR FALSE

 

 

 

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