Cs 141 Exam 1 Review1 Game Show!

Cs 141 Exam 1 Review2  What type/types hold the following:  'a'  '\n'  '4'

Cs 141 Exam 1 Review3  What type/types hold the following:  0,1,-1,2,-2,...

Cs 141 Exam 1 Review4  What is the main difference between the values that can be stored in an int variable and the set of all integers that you learned about in math?

Cs 141 Exam 1 Review5  What type/types hold the following: 0,1,2,3,4,...

Cs 141 Exam 1 Review6  What type/types could be legitimately substituted for TYPE TYPE foo = 4;

Cs 141 Exam 1 Review7  What is the main difference between a float and a double?

Cs 141 Exam 1 Review8 int bar = 23/4; What is bar?

Cs 141 Exam 1 Review9 int foo = 23%4; What is foo?

Cs 141 Exam 1 Review10 float bop = 23/4; What is bop?

Cs 141 Exam 1 Review11  int baz;  What is the value of baz?

Cs 141 Exam 1 Review12  What are three ways to initialize the value of a variable?

Cs 141 Exam 1 Review13  What would happen if you did this:  const int foo = 5;  foo = 10;

Cs 141 Exam 1 Review14  Is this a valid comment?  /* Written by Jeanna

Cs 141 Exam 1 Review15  Is this a valid comment?  \\ Written by Jeanna

Cs 141 Exam 1 Review16  What are two ways to write a valid comment?

Cs 141 Exam 1 Review17  Declare a variable to hold someone's last name.

Cs 141 Exam 1 Review18  Declare a variable to hold someone's age in years.

Cs 141 Exam 1 Review19  Declare a variable to hold someone's hourly wage.

Cs 141 Exam 1 Review20  Declare a variable to hold someone's middle initial.

Cs 141 Exam 1 Review21  If you wanted to declare a variable to keep track of the number of times someone blinks in a year, what would be a good choice for the type and why?

Cs 141 Exam 1 Review22 What does != mean?

Cs 141 Exam 1 Review23  What is the difference between = and ==?

Cs 141 Exam 1 Review24  What does && mean?

Cs 141 Exam 1 Review25  What does || mean?

Cs 141 Exam 1 Review26  What is the difference between: cin >> foo; cout << foo;

Cs 141 Exam 1 Review27  Which of these lines is not like the others? foo++; ++foo; foo+=1; foo = foo +1; foo+1;

Cs 141 Exam 1 Review28  What is wrong with this? if ((answer == ‘y’) | (answer == ‘Y’)){ cout << “User entered yes\n”; }

Cs 141 Exam 1 Review29  What is wrong with this? if ((answer == ‘y’) && (answer == ‘Y’)){ cout << “User entered yes\n”; }

Cs 141 Exam 1 Review30 What will happen if you do this? num =3; if (num =2){ cout << “Number is 2\n”; } else { cout << “Number is not 2\n”; }

Cs 141 Exam 1 Review31 What will happen if you do this num =3; if (num !=2){ cout << “Number is not 2\n”; } else if (num < 4) { cout << “Number is less than 4\n”; } else if (num >0){ cout << “Number is greater than 0\n”; }

Cs 141 Exam 1 Review32  What is the value of BAZ below? enum SillyNames {FOO=1, BAR, BAZ};

Cs 141 Exam 1 Review33  Declare an enum of the days of the week.

Cs 141 Exam 1 Review34  What is the advantage of declaring an enum?

Cs 141 Exam 1 Review35  Are these two boolean expressions the same? (x >=10) ((x ==10) && (x > 10))

Cs 141 Exam 1 Review36  There are 3 different types of clauses in an if statement: if, else if and else  How many of each can you have?

Cs 141 Exam 1 Review37  Identify the following in this loop: InitializationActions, LoopCondition, UpdateActions, BodyStatements, CompletionActions total =0; i=0; while (i< 10){ total = total +i; i++; } cout << total;

Cs 141 Exam 1 Review38  Identify the following in this loop: InitializationActions, LoopCondition, UpdateActions, BodyStatements, CompletionActions for(i=0; i< 10; i++){ total = total +i; } cout << total;

Cs 141 Exam 1 Review39  Identify the following in this loop: InitializationActions, LoopCondition, UpdateActions, BodyStatements, CompletionActions howMany=0; while(input_stream >> num){ howMany++; total = total + num; } average = total/howMany;

Cs 141 Exam 1 Review40  If homMany and total are ints, what problem will be have computing average? What could we do to fix the problem? What type should average be? howMany=0; while(input_stream >> num){ howMany++; total = total + num; } average = total/howMany;

Cs 141 Exam 1 Review41 int numbers[3]; How many ints are declared? How would you refer to the first one? The last one? Write a for loop to add them all up

Cs 141 Exam 1 Review42 int numbers[3][2]; How many ints are declared? How would you refer to first one? How would you refer to the last one? Write a for loop to add them all up.

Cs 141 Exam 1 Review43  If you want to read from or write to a file what must you add to our basic template?

Cs 141 Exam 1 Review44 #include

Cs 141 Exam 1 Review45  Declare a variable to hold a file you want to read from

Cs 141 Exam 1 Review46 ifstream input_file;

Cs 141 Exam 1 Review47  Declare a variable to hold a file you want to write to.

Cs 141 Exam 1 Review48 ofstream output_file;

Cs 141 Exam 1 Review49 How would you open the file “foo.txt”?

Cs 141 Exam 1 Review50 fileVariable.open(“foo.txt”);

Cs 141 Exam 1 Review51  If you try to open a file, what type of error should you check for and how do you do that?

Cs 141 Exam 1 Review52 Check if weren't able to open the file fileVariable.open(“foo.txt”); if (fileVariable.fail()){ cout << “Couldn't open the file\n”; }

Cs 141 Exam 1 Review53  How would you open the file foo.txt?

Cs 141 Exam 1 Review54  What does it mean to have a if statement nested inside a loop?

Cs 141 Exam 1 Review55  What does it mean to have nested for loops?  What are nested for loops especially good for?

Cs 141 Exam 1 Review56  True or false: There are some problems for which you must use a do-while loop. A while loop just won't work.

Cs 141 Exam 1 Review57  When is it generally better to use a do- while loop instead of a while loop?

Cs 141 Exam 1 Review58  When is it generally better to use a for loop instead of a while loop or do-while loop?

Cs 141 Exam 1 Review59  When you get a bunch of compiler errors which one should you fix first and why?

Cs 141 Exam 1 Review60  If you are trying to fix a specific compiler error, how can you figure out where the problem is?

Cs 141 Exam 1 Review61  What is a fence post error?

Cs 141 Exam 1 Review62  If you were going to test this loop what would be three great values of x to test? Why? cin >> x; for (int i=0; i< x; i++){ cout << i; }

Cs 141 Exam 1 Review63 Will these do the same thing? for (i=0; i< 3;i++ ) cout << i; for (i=0;i< 3 ){ cout << i; i++; }

Cs 141 Exam 1 Review64 Will these do the same thing? for (i=0; i< 3;i++ ) cout << i; i=0; while (i< 3 ) cout << i++;

Cs 141 Exam 1 Review65  What would you expect to happen if you did this int numArray[5]; numArray[5] = 100; cout << numArray[5];

Cs 141 Exam 1 Review66 Whats wrong with this int numArray[9]; for (int i=0; i<=9; i++){ numArray[i] = i; }

Cs 141 Exam 1 Review67 Do these all do the same thing? cout << num << “\n”; cout << num << endl; cout << num; cout << “\n”;

Cs 141 Exam 1 Review68  What child of a famous British poet is often considered the first programmer?

Cs 141 Exam 1 Review69 Ada Byron Lovelace ( )

Cs 141 Exam 1 Review70  Who is the creator of C++?

Cs 141 Exam 1 Review71 Bjarne Stroustrup

Cs 141 Exam 1 Review72  Who is the creator of the C programming language and a co-author of the UNIX operating system?

Cs 141 Exam 1 Review73 Dennis Ritchie

Cs 141 Exam 1 Review74  Explain the joke in the name C++

Cs 141 Exam 1 Review75  Who coined the term “debugging” and wrote the first compiler for a computer programming language?

Cs 141 Exam 1 Review76 Rear Admiral Grace Hopper

Cs 141 Exam 1 Review77 Picture of the moth that was the first computer “bug”

Cs 141 Exam 1 Review78 Who is this?

Cs 141 Exam 1 Review79  Linus Torvalds author and developer of Linux

Cs 141 Exam 1 Review80 Who is this?

Cs 141 Exam 1 Review81  Steve Jobs, co-founder and CEO of Apple Corporation

Cs 141 Exam 1 Review82 Who is this?

Cs 141 Exam 1 Review83  Steve Wozniak, co-founder of Apple Corporation

Cs 141 Exam 1 Review84  What does IBM stand for?

Cs 141 Exam 1 Review85  International Business Machines

Cs 141 Exam 1 Review86  Who is considered the founder of IBM?

Cs 141 Exam 1 Review87 Thomas J. Watson

Cs 141 Exam 1 Review88 Whats wrong with this function bool foo (int, double){ return true; }

Cs 141 Exam 1 Review89 Whats wrong with this function void doubleIt(int num){ num = 2* num; }

Cs 141 Exam 1 Review90 Whats wrong with this function int double bar(int num){ return num; }

Cs 141 Exam 1 Review91 Whats wrong with this function void doubleIt(int num){ return 2* num; }

Cs 141 Exam 1 Review92 void baz (int num1, int &num); Which is the call by value parameter and which is the call by reference parameter?

Cs 141 Exam 1 Review93  What does call by value mean?

Cs 141 Exam 1 Review94  What does call by reference mean?

Cs 141 Exam 1 Review95 void bar(int numArray[]){ } Is numArray call by value or call by reference?

Cs 141 Exam 1 Review96 What do you have to do to make an array parameter call by value?

Cs 141 Exam 1 Review97  What does procedural abstraction or information hiding or black box design mean?

Cs 141 Exam 1 Review98  What is the purpose of assertions?

Cs 141 Exam 1 Review99  How can you turn off assertions before you release code to users?

Cs 141 Exam 1 Review100  Why would you turn off assertions before you release code to users?

Cs 141 Exam 1 Review101  Give me an example of function overloading?

Cs 141 Exam 1 Review102  What is meant by a global variable?

Cs 141 Exam 1 Review103  Where are global variables declared?

Cs 141 Exam 1 Review104  What is the type of variable used for output files?

Cs 141 Exam 1 Review105  What is the type of variable used for input files?

Cs 141 Exam 1 Review106  How do you test if a file open succeeds?

Cs 141 Exam 1 Review107  How do you test if a file read or write succeeds?

Cs 141 Exam 1 Review108  How do you test if you read all the contents of a file?

Cs 141 Exam 1 Review109  What do you add to the file open call if you want to append to a file?

Cs 141 Exam 1 Review110  If I did this ./a.out inputFile.txt  What would argc be?

Cs 141 Exam 1 Review111  If I did this ./a.out inputFile.txt  What would argv[1] be?

Cs 141 Exam 1 Review112