Declaration of One-Dimensional Arrays:

Like any other variable, arrays must be declared before they are used so that the compiler can allocate space for them in memory. The general form of array declaration is

 The type specifies the type of element that will be contained in the array, such as int, float, or char and the size indicates the maximum number of elements that can be store inside the array. For Example

                                    int a[ 5 ];

declares the a to be an array containing 5 integer elements. Any subscripts 0 t0 4 are valid.

Note that:

1.      Any reference to the arrays outside the declared limits would not necessarily cause an error. Rather, it might result in unpredictable program results.

2.      The size should be either a numeric constant or a symbolic constant.

The C language treats character strings simply as arrays of characters. The size in a character string represents the maximum number of characters that the string can hold. For instance,

                                    char name[10];

declares the name as a character array (string) variable that can hold a maximum of 10 characters. Suppose we read the following string constant into the string variable name.

                                    “WELL DONE”

Each character of the string treated as an element of the array name and is stored in the memory as follows:

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