Question

Match the following data handling constructs with correct description.

(i) Variable	(b) Stores a value that can change during execution
(ii) Array	(c) Set of elements of the same data type
(iii) Control Array	(d) Group of controls sharing common properties
(iv) Collection	(a) Group of objects accessed by index

• A. (i) → b, (ii) → c, (iii) → d, (iv) → a
• B. (i) → b, (ii) → a, (iii) → c, (iv) → d
• C. (i) → b, (ii) → d, (iii) → c, (iv) → a
• D. (i) → b, (ii) → d, (iii) → a, (iv) → c

Answer 1

Answer:

A. (i) → b, (ii) → c, (iii) → d, (iv) → a

Fundamental Programming Data Structures

• Variable: A symbolic name that acts as a container for storing a data value. The value stored in a variable can be modified or updated at any point during the program's execution runtime.
• Array: A linear data structure that holds a fixed-size, sequential collection of elements. Key characteristic is that all elements within a single array must share the same data type (e.g., all integers or all strings).
• Control Array: Specifically relevant to environments like Visual Basic, this is a group of controls that share the same name and type. They allow developers to manage multiple GUI elements (like text boxes or buttons) efficiently using a single index to refer to specific members of the group.
• Collection: A more flexible object-oriented structure that stores a group of related items. Unlike fixed-size arrays, collections are typically dynamic and offer built-in methods for adding, removing, or accessing items by an index or key, providing greater functionality for object management.