Declare and initialize one dimensional array variables with array initializers, e.g. int[] nums = {1, 2, 3};

Declare and initialize one-dimensional array variables with new, e.g. int[] nums = new int[10];

Declare and initialize rectangular 2d arrays with both array initializers and new.

Declare and initialize non-rectangular 2d arrays.

Access the first element of an array: a[0].

Access the last element of an array: a[a.length - 1]

Access arbitrary elements of an array: a[i]

Access arbitrary elements of a 2d array: a[row][col].

Access array elements using computed values for the index.

Access arbitrary elements relative to the end of an array using a.length, e.g. a[a.length - 3].

Use array access expressions as sub expressions in larger expressions, e.g.: a[i] < a[i + 1]

Explain what an ArrayIndexOutOfBoundsException means.

Assign a value to the first element of an array: a[0] = value

Assign a value to the last element of an array: a[a.length - 1] = value

Assign values to arbitrary array elements: a[i] = value

Assign values to arbitrary elements of a 2d array: a[row][col] = value

Modify array elements using computed values for the index.

Modify arbitrary elements relative to the end of an array using a.length, e.g. a[a.length - 3].

Modify array elements with compound assignment operators, e.g. a[i] += 10

Write code to swap to elements in an array.

Explain why arrays have to be a reference type.

Explain why modificatios to an array referred to by one variable can be visible if you reference the same array via another variable.

Explain what a = b does if a and b are both variables holding an array value.

Explain roughly how arrays are stored in memory and the relationship between a reference to an array and the actual memory holding the array.

Explain what is stored in an array of reference type, e.g. String[].

Explain how 2D arrays are stored in memory.