Problem Statement

This task is about arrays. For hashes or associative arrays, please see Creating an Associative Array. For a definition and in-depth discussion of what an array is, see Array.

Show basic array syntax in your language. Basically, create an array, assign a value to it, and retrieve an element   (if available, show both fixed-length arrays and dynamic arrays, pushing a value into it). Please discuss at Village Pump:   Arrays.
Please merge code in from these obsolete tasks:

Let's start with the solution:

Integer[] array = new Integer[10]; // optionally, append a braced list of Integers like "{1, 2, 3}"
array[0] = 42;
System.debug(array[0]); // Prints 42

List <Integer> aList = new List <Integer>(); // optionally add an initial size as an argument
aList.add(5);// appends to the end of the list
aList.add(1, 6);// assigns the element at index 1
System.debug(list[0]); // Prints 5, alternatively you can use list.get(0)