Arrays and ArrayLists

ArrayList Code	Array Code

Notes:

• Type description: Student[] instead of ArrayList<Student>
• Accessing a single item: theList[i] instead of theList.get(i) or theList.set(i)
• Size of list: theList.length instead of theList.size
  • length is an attribute (public instance variable), not a method, so there are no parentheses
  • length specifies the capacity of the array (the number of items it could hold), not the number of array elements that you have set to meaningful values. If the array is not full, you need to keep track of the number of items actually in the array with a variable of your own.