Arrays

Front

What is an array?

Back

An array is a collection of items arranged in rows and columns.

Front

How do you identify the number of rows in an array?

Back

Count the horizontal lines of items.

Front

How do you identify the number of columns in an array?

Back

Count the vertical lines of items.

Front

What direction do columns go in an array?

Back

Columns go down, vertically, up and down.

Front

What does a 2 x 4 array mean?

Back

It means there are 2 rows and 4 columns.

Front

What does a 3 x 3 array look like?

Back

It has 3 rows and 3 columns, forming a square.

Front

If an array has 4 rows and 5 columns, what is its name?

Back

It is called a 4 x 5 array.

Front

What is the total number of items in a 3 x 5 array?

Back

15 items (3 rows x 5 columns = 15).

Front

Can an array have different numbers of items in each row?

Back

No, each row in an array must have the same number of items.

Front

What is the purpose of using arrays?

Back

Arrays help organize data in a structured way.