Declaration

e.g.   int [] numbers;
         int [] numbers = new int [10];
         String [] names;

In the first case, numbers is a pointer to an array of unknown size of integers.   In the second case, numbers is a pointer to an array that contains 10 integers.   Arrays are 0 based, so the slots are numbered 0 through 9.  Initially, each slot contains the default value (0) for an integer.  In the third case, names is a pointer to an array of unknown size of String pointers.

Initialization

e.g.   numbers[0] = 77;                // initializes position 0 to 77

Declaration and Initialization

e.g.    int [] numbers = {1900, 1950, 2000};        

Access

e.g.   numbers[0] = numbers[1] + numbers[2];

Useful Built-In Data Fields