Question 11 pts

Data in a table or a matrix can be represented using a _____ array.

(Hint: Please use the wording from the book.)

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Question 21 pts

Which of the following is the correct way to create a two-dimensional array of 5-by-4 char values.

char letters[][] = new char[5][4]

char letters[][] = new char[5,4];

char[][] letters = new char[5][4];

char[ , ] letters = new char[5,4];

char[][] letters = new char[5,4];

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Question 31 pts

How many rows are in the following two-dimensional array?

int[][] matrix = new int[10][5];

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Question 41 pts

How many columns are in the following two-dimensional array?

String[][] phrases = new String[5][4];

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Question 51 pts

int[][] numbers = {{1,2,3},{4,5,6},{7,8,9}};

Using the above array declaration, how would we display the value of 7? We would enter: System.out.println(numbers[ ][ ]);

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Question 61 pts

A ____ array is a type of two-dimensional array that has rows of different lengths.

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Question 72 pts

Which of the following statements are valid? (Choose all the apply.)

int[][] r = new int[2];

int[] x = new int[];

int[][] y = new int[3][];

int[][] z = {{1,2}};

int[][] m = {{1,2},{2,3}};

int[][] n = {{1,2},{2,3},};

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Question 8

When passing a two-dimensional array to a method, the ___ of the array is passed to the method.

(Hint: Please use the textbook wording.)