Comp Sci Chapter 9

To declare a two-dimensional int array called twoD, which of the following would you use? - int [ ] [ ] twoD; - int [ , ] twoD; - int [2] twoD; - int [ ] twoD [2];

- int [ ] [ ] twoD;

What is the index of the first item in an array?

0

Which is an example of an index? 1 , schools , schools(1) , "western"

1

The match with Watson actually consisted of how many Jeopardy games?

2

The Watson Jeopardy game was televised February of what year?

2011

Given the statement int [ ] [ ] x = new int [4] [5]; , what are x.length and x[0].length?

4 and 5

Which Jeopardy contestant grew up in Lancaster, PA?

Brad Rutter

What are the names of the human contestants that played against Watson?

Brad Rutter, and Ken Jennings

The same company that built this computer built another computer that over a decade earlier beat a human in a different competition. What type of competition was it?

Deep blue- chess match

True or False: Watson got the Final Jeopardy question correct at the end of the first game.

False

True or False: a human won game 1.

False

True or False: the computer answered every question correctly that it chose to answer.

False

True or False: the computer was connected to the internet during the match.

False

The computer was developed by which company?

IBM

Which human contestant holds the record for winning the most Jeopardy games in a row (74)?

Ken Jennings

Which statement properly declares a two-dimensional array with 9 String elements? - String[ ] gameBoard = new String [3] [3]; - String[ ] [ ] gameBoard = new String [9]; - String [ ] [ ] gameBoard = new String [3] [3]; - String[9] gameBoard = new String [3] [3]

String [ ] [ ] gameBoard = new String [3] [3];

Which of the following is a legal way to declare and instantiate an array of 10 Strings? - String s = new String(10); - String[ ] s = new String[10]; - String[10] s = new String; - String[ ] s = new String;

String[ ] s = new String[10];

What are parallel arrays?

Two or more arrays whose elements are related in some way.

What is the name of the computer that competed against two other people on the show 'Jeopardy'?

Watson

The computer was named after... a) A famous character from literature b) an employee of the company that built the computer c) former CEO Thomas J. Watson d) a former Jeopardy champion

c

Which statement determines the number of columns in a two-dimensional array? - cols = gameBoard[0].size; - cols = gameBoard[0].length; - cols = gameBoard.length; - cols = gameBoard.noCols;

cols = gameBoard[0].length;

What is a data item in an array called? index, element, data, or pointer

element

Which structure is best for accessing array elements? for loop , while loop , do-while loop , if-else statement

for loop

What is each element in a String array is automatically initialized to?

null

What does the length attribute determine?

the number of elements in the array

When an array is passed to a method, what does the method receive?

the reference to the elements