Arrays Part 1

• Arrays are structures of related data items.
• Static Entity - same size throughout the program
• Dynamic data structures
• Arrays are group of consecutive memory locations
• Format: arrayname [position number]
• what do you need to specify?

  -array name

  -position number
• what is the first element at position?

  0
• in declaring arrays, you need to specify:

  • name
  • type of array
  • number of elements
• if not enough initializers, rightmost elements become 0
• if too many elements, syntax error
• if size is omitted, initializers determine it
• The array is passed – as an array of unspecified size (int array[]) OR – as a pointer (int *array)
• ● Changes to the array within the function affect the “original” array