Intro to Programming Fundamentals Exam 1
The statement: cin >> setw(10) >> str; will read up to this many characters into str.
Ten
An Integrated Development Environment typically consists of:
Text editor, compiler, debugger
True/False: The cin << statement will stop reading input when it encounters a newline character.
True
True/False: The only difference between the get function and the >> operator is that get reads the first character typed, even if it is a space, tab, or the [Enter] key.
True
True/False: When C++ is working with an operator, it strives to convert the operands to the same type.
True
True/False: When the fixed manipulator is used, the value specified by the setprecision manipulator will be the number of digits to appear after the decimal point.
True
True/False: When writing long integer literals or long long integer literals in C++ 11, you can use either an uppercase or lowercase L.
True
Programmer-defined names of memory locations that may hold data are:
Variables
________ represent storage locations in the computer's memory.
Variables
Which character signifies the beginning of an escape sequence?
\
Which escape sequence causes the cursor to move to the beginning of the current line?
\r
The ________ decodes an instruction and generates electrical signals.
control unit
The ________ is/are used to display information on the computer's screen.
cout object
To use the rand() function, you must #include this header file in your program.
cstdlib
Besides decimal, two other number systems you might encounter in C++ programs are:
hexadecimal and octal
In any program that uses the cin object, you must include the ________.
iostream header file
This manipulator causes the field to be left-justified with padding spaces printed to the right.
left
Associativity is either right to left or:
left to right
In a broad sense, the two primary categories of programming languages are:
low-level and high-level
The float data type is considered ________ precision, and the double data type is considered ________ precision.
single, double
This function in C++ allows you to identify how many bytes of storage on your computer system an integer data value requires.
sizeof
In programming terms, a group of characters inside a set of quotation marks is called a(n):
string literal
The purpose of a memory address is:
to identify the location of a byte in memory
True/False: A preprocessor directive does not require a semicolon at the end.
true
The ________ causes the contents of another file to be inserted into a program.
#include directive
What is the modulus operator?
%
When this operator is used with string operands it concatenates them, or joins them together.
+
These are used to declare variables that can hold real numbers.
- Floating point data types
A statement that starts with a # symbol is called a:
. Preprocessor directive
According to orientation clip what grade do you get for lab assignments missed their due dates?
0
According to orientation clip how many hours is required for successful completion of this course?
180 hours
According to orientation clip how many EXAMs (excluding FINAL) are there in this course?
3
What is the value of number after the following statements execute? int number = 10; number += 5; number -= 2; number *= 3;
39
Which one of the following would be an illegal variable name?
3dGraph
Assuming you are using a system with 1-byte characters, how many bytes of memory will the following string literal occupy? "William"
8
The ________ operator always follows the cin object, and the ________ operator follows the cout object.
>>, <<
In a C++ program, two slash marks ( // ) indicate:
A comment
A set of well-defined steps for performing a task or solving a problem is known as a(n):
Algorithm
_______________ are used to translate each source code instruction into the appropriate machine language instruction.
Compilers
This step will uncover any syntax errors in your program.
Compiling
True/False: A variable called "average" should be declared as an integer data type because it will probably hold data that contains decimal places.
False
True/False: Arithmetic operators that share the same precedence have right to left associativity.
False
True/False: If you do not follow a consistent programming style, your programs will generate compiler errors.
False
True/False: If you want to know the length of the string that is stored in a string object, you can call the object's size member function.
False
True/False: In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision.
False
True/False: The fixed manipulator causes a number to be displayed in scientific notation.
False
During which stage does the central processing unit retrieve from main memory the next instruction in the sequence of program instructions?
Fetch
Three primary activities of a program are:
Input, Processing, and Output
Which is true about the following statement? cout << setw(4) << num4 << " ";
It allows four spaces for the value in the variable num4.
Which line in the following program will cause a compiler error? 1 #include <iostream> 2 using namespace std; 3 4 int main() 5 { 6 const int MY_VAL = 77; 7 MY_VAL = 99; 8 cout << MY_VAL << endl; 9 return 0; 10 }
Line 7
In memory, C++ automatically places a ________ at the end of string literals.
Null terminator
When converting some algebraic expressions to C++, you may need to insert ________ that do not appear in the algebraic expression.
Parenthesis
A(n) ____________ is a set of instructions that the computer follows to solve a problem.
Program
This is a complete instruction that causes the computer to perform some action.
Statement
This is a set of rules that must be followed when constructing a program.
Syntax
When the final value of an expression is assigned to a variable, it will be converted to:
The data type of the variable
According to orientation clip what happens if you missed an EXAM due to conditions that you could not control?
The final exam can replace the zero
________ must be included in any program that uses the cout object.
The header file iostream
A CPU really only understands instructions that are written in machine language.
True
In C++, key words are written in all lowercase letters.
True
True/False: C++ 11 introduces an alternative way to define variables, using the template key word and an initialization value.
True
True/False: Escape sequences are always stored internally as a single character.
True
True/False: Floating point constants are normally stored in memory as doubles.
True
Of the following, which is a valid C++ identifier? a. Junē997 b. _employee_number c. ___department d. myExtraLongVariableName e. All of the above are valid identifiers.
all
In C++ 11, the ________ tells the compiler to determine the variable's data type from the initialization value.
auto keyword
A variable whose value can be either true or false is of this data type.
bool
You want the user to enter the length, width, and height from the keyboard. Which cin statement is correctly written?
cin >> length >> width >> height;
The ________ causes a program to wait until information is typed at the keyboard and the Enter key is pressed.
cin object
This statement will pause the screen, until the [Enter] key is pressed.
cin.get()
This function tells the cin object to skip one or more characters in the keyboard buffer.
cin.ignore
The function, pow(x, 5.0), requires this header file.
cmath
These are data items whose values do not change while the program is running.
const
During which stage does the central processing unit analyze the instruction and encode it in the form of a number, and then generate an electronic signal?
decode
Which of the following defines a double-precision floating point variable named payCheck?
double payCheck
True/False: The C++ language requires that you give variables names that indicate what the variables are used for.
false
True/False: When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive.
false
This stream manipulator forces cout to print the digits in fixed-point notation.
fixed
Every complete C++ program must have a ________.
function named main
Which statement will read an entire line of input into the following string object? string address;
getline(cin, address);
When a variable is assigned a number that is too large for its data type, it:
overflows
You can use these to override the rules of operator precedence in a mathematical expression.
parenthesis
A variable's ________ is the part of the program that has access to the variable.
scope
This is used to mark the end of a complete C++ programming statement.
semicolon
This manipulator is used to establish a field width for the value immediately following it.
setw
The total number of digits that appear before and after the decimal point is sometimes referred to as:
significant digits and precision
Character constants in C++ are always enclosed in ________.
single quotation marks