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C# Collections Review

  •  English    10     Public
    A review of Collections in C#
  •   Study   Slideshow
  • Will this code work?
    NO! The myList variable is never initialized.
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  • Will this code work?
    NO! It is not possible to add an integer to a list of strings.
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  • Will this code work?
    YES! It properly creates a new List of integers and adds a value to it.
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  • Will this code work?
    YES! It properly creates a new List of integers, adds two values to it, and prints the value at index 1 to the console.
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  • Will this code work?
    NO! The index (2) is out of bounds, because there are only two elements in the List (at index 0 and index 1).
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  • What will be printed to the console?
    6! It first gets the value of the List at index 0 (which is 1), and then adds 5 to it.
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  • What will be printed to the console?
    3! There are three total elements added to the List.
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  • What will be printed to the console?
    40! After adding four elements to the List, the program loops through and calculates the sum of all the values (multiplied by 10).
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  • What is one difference between a List and an Array?
    A few! A List can change size, while an Array's size cannot change. A List can Add items dynamically. An Array is instantiated with square bracket notation.
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  • What is the index of the first element in a List?
    0!
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