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Rows and tables of storage.
Arrays are a convenient way of grouping a lot of variables under a single variable name. Arrays are like pigeon holes or chessboards, with each compartment or square acting as a storage place; they can be one dimensional, two dimensional or more dimensional! An array is defined using square brackets []. For example: an array of three integers called "triplet" would be declared like this:
     int triplet[3];

Notice that there is no space between the square bracket [ and the name of the array. This statement would cause space for three integers type variables to be created in memory next to each other as in the diagram below.
int triplet:    |           |           |            |

The number in the square brackets of the declaration is referred to as the `index' (plural: indicies) or `subscript' of the array and it must be an integer number between 0 and (in this case) 2. The three integers are called elements of the array and they are referred to in a program by writing:

Note that the indicies start at zero and run up to one less than the number which is placed in the declaration (which is called the dimension of the array.)

  • Use Arrays
  • Initializing Arrays
  • Array as Parameter
  • Array as String
  • Arrays as Pointer
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