3.2.1.2 Single and multi-dimensional arrays.

Question 1

Define the use of a single array.

Answer 1

To store multiple values in a single variable, instead of declaring variables for each value.

Question 2

Define the syntax to declare an array.

Answer 2

String[ ] cars;

Question 3

How do you access the elements of an array?

Answer 3

By referring to the index number.
e.g.

System.out.println(cars[0]);

Question 4

Define a multi-dimensional array.

Answer 4

An array containing one or more arrays.

Question 5

Define the syntax.

Answer 5

int [ ] [ ] myNumbers = { {1, 2, 3, 4}, {5, 6, 7} };