Arrays:  built-in construct for dealing with lists of things

• Arrays can contain class objects or primitive types.
• You specify the size of an array when you construct it; it cannot be resized later.

Constructing an array -- note the square brackets:
   int[] numberList = new int[10];
   Fish[] listOfFish = new Fish[numFish];

Accessing elements in the array: theArray[indexOfElement]
Indices range from 0 to N - 1.
Examples:
  System.out.println(numberList[0]);
  System.out.println(numberList[9]);
  System.out.println(numberList[i]);
  listOfFish[fishNum].moveForward();

Referring to the length of an array -- note lack of parens:
  numberList.length

We often use loops to step through an array.
  for (int i=0; i<numberList.length; i++)
      numberList[i] = 0;