ARRAYS

ARRAYS

1. A data structure which holds a set (list) of data items of the same data type.

2. It is assigned a name, a size (no. of data items to be stored) and a data type.

   • Example: An integer type array called quizScores of size 6 is declared and initialised below:
     • Declaration only:
       • int[] quizScores
     • Declared,, Created & Initialised:
       • int[] quizScores = {23, 29, 18, 24, 16}
     • Declaration & Creation
       • int[] quizScores = new int[6]

3. Positions in an array always start at 0.

   • An array of 10 items will have positions from 0 to 9

4. The computer reserves a set of memory locations for each element of an array. They will be next to each other (contiguous)