Arrays Meopardy

1

100

An array is a list of...

data elements

200

Arrays may be a literal value, a constant, or variable but they cannot be this

A negative number

300

The == operator in an array determines 

whether array references point to the same array object

400

The array that is passed into the ______ parameter comes from the operating system command-line

args

2

100

An array can store any type of data as long as...

they are of the same type

200

The length field of the array gives the number of what in an array 

elements

300

Programs that process 2D arrays can do so with...

Nested Loops

400

int[] numbers = new int[6];

float[] temperatures = new float[100];

char[] letters = new char[41];

long[] units = new long[50];

double[] sizes = new double[1200];

Are all examples of what?

Array

3

100

Arrays allow you to create a collection of like values that are....

indexed

200

A method can return a reference to a(n)...

array

300

This type of method has a header that looks like this:
public static void main(String[] args)

main method

400

String objects have several methods, including

toUpperCase

compareTo

equals

charAt

4

100

Once created, an array size is

fixed and cannot be changed

200

Arrays have a final field named...

length

300

When processing the data in a two-dimensional array, each element has two subscripts, what are they?

one for its row 

one for its column

400

What is this code finding?

    int [] numbers = new int[50];

    int highest = numbers[0];

    for (int i = 1; i < numbers.length; i++)

    {

        if (numbers[i] > highest)

            highest = numbers[i];

The highest value

5

100

Two-dimensional arrays are

arrays of one-dimensional arrays

200

Each element of a String array is a

String Object

300

Declaring a two-dimensional array requires two sets of brackets and two size declarators, what are they both for 

The first one is for the number of rows

The second one is for the number of columns.

400

This code is summing THIS for a two-dimmensional array

int[][] numbers = {{ 1, 2, 3, 4},

                   {5, 6, 7, 8},

                   {9, 10, 11, 12}};

int total;

for (int row = 0; row < numbers.length; row++)

{

    total = 0;

    for (int col = 0; col < numbers[row].length; col++)

         total += numbers[row][col];

    System.out.println("Total of row " 

                       + row + " is " + total);

}

The Rows