Definitin fo Array



“The collection of homogenous data elements stored under a single name in consecutive memory locations.”
This single name is called array. Individual elements of array are called SUB-SCRIPTED variables. Thus a sub-scripted variable consists of an array name followed by sub-script of an index enclosed in square bracket. A pair of bracket is used for sub-script. Array may be one dimensional one dimensional or two dimensional.
TYPES OF ARRAY:

        1.ONE DIMENSIONAL ARRAY
        2.TWO DIMENSIONAL ARRAY
§  ONE DIMENSIONAL ARRAY:
This type of array is also called linier array. In this, there is only one sub-script. Each element of array is stored in consecutive location in memory as
Data type  array name  size
                                                  int a[10] = (1,2,3,4,5,6,7,8,9,10)
§  TWO DIMENSIONAL ARRAY:
It is also called 2-D array. It is also called MATRIX because it contains rows and columns. This type of array consists of two sub-scripts. First sub-script represents rows and second sub-script represents columns. It is also called m*n matrix. Here, ‘m’ represents rows & ‘m’ represents columns.
EXAMPLE:
                     a [3] [3]
MEMORY REPRESENTATION
§  ROW BY ROW
§  COLUMN BY COLUMN

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