Question 1

Write a program that reads in and sums the squares of positive integers until a value that 0 or less is read in.

Accepted Answer

// file ch2nu36.cc
// test question 36 f

Question 2

Which of the following control structures requires curly braces?

Accepted Answer

A) if-else 
B) while 
C) do-while 
D) switch 
E) for 
A) if-else 
B) while 
C) do-while 
D) switch 
E) for

Question 3

For each of the following situations,tell which type loop (while,do-while,or for)would be best in that situation:
a)Reading a list of an unknown number of homework grades for a single student.
b)Summing a series such as 1 +1/2 +1/(22)+ 1/(23)+ … + 1/(28)
c)Testing a newly coded library function to see how it performs for different values of its arguments.
d)Reading in the number of days of vacation taken by an employee.

Accepted Answer

a)A while loop because the list of grade

Question 4

In a while loop,the Boolean_Expression is executed before each execution of the loop body.

Accepted Answer

A) True 
 B)False

Question 5

Write Boolean expressions that represent the given English expressions.Assume any variables used have been declared and initialized.
a)alpha is greater than 1
b)x is odd
c)x and y are odd
d)ch is an upper case alphabetic character (between 'A' and 'Z').
e)digit,which is f type char,has value that is indeed a digit.

Accepted Answer

a.alpha > 1
b.(x%2==1)
c.(x %

Question 6

What is the output of the following,if it were embedded in an otherwise correct and complete program and run? 
int x = 10;
While (x > 0)
{
$\quad$cout << x << " ";
$\quad$x= x + 3;
}
cout << endl;

Accepted Answer

A) 10 13 16 19 ... 
B) The compiler detects that this will be an infinite loop,so it does not compile. Insert lowercase be 
C) This is an infinite loop.When compiled and run,it runs until machine limitations stop it,or you get tired of it and kill the process. 
D) 0 3 6 9. 
A) 10 13 16 19 ... 
B) The compiler detects that this will be an infinite loop,so it does not compile. Insert lowercase be 
C) This is an infinite loop.When compiled and run,it runs until machine limitations stop it,or you get tired of it and kill the process. 
D) 0 3 6 9.

Question 7

Write the following do-while statement with a while construct,and maybe some extra code.
x = 10;
do
{
$\quad$cout  0 );

Accepted Answer

A simple minded change from do while to

Question 8

A numeric integer grade is between 50 and 99.Using integer division or otherwise obtain a int value that is 5,6,7,8,or 9 from the numeric grade.Write code using a switch statement using this number in the selector expression that assigns letter grades based on this 10 point scheme:
if the numeric_grade is not less than 90,the letter_grade is an A,
if the numeric_grade is not less than 80,the letter_grade is a B,
if the numeric_grade is not less than 70,the letter_grade is C,
if the numeric_grade is not less than 60,the letter_grade is D,
otherwise the letter_grade is F.

Accepted Answer

int value = numeric_grade/10;
switch(val

Question 9

When a loop is nested in side another loop,a break or continue statement terminates or restarts the outermost loop of the nested loop structure.

Accepted Answer

A) True 
 B)False

Question 10

The value of count is 0;limit is 10.Evaluate:
(count != 0)||(limit < 20)

Accepted Answer

A) True 
 B)False

Question 11

Which of the following loop statements is guaranteed to iterate the body of the loop at least once?

Accepted Answer

A) while(control)body; 
B) do body while(control); 
C) for (initialize;test;update)body; 
D) none of the above 
E) all of the above 
A) while(control)body; 
B) do body while(control); 
C) for (initialize;test;update)body; 
D) none of the above 
E) all of the above

Question 12

Suppose we have these declarations,
int x = -1,y = 0,z = 1;
This Boolean expression is correct and it does what the programmer intends.
x < y < z

Accepted Answer

A) True 
 B)False

Question 13

A switch statement must have

Accepted Answer

A) a default case 
B) more than one non-default case 
C) a break statement 
D) none of the above 
E) all of the above 
A) a default case 
B) more than one non-default case 
C) a break statement 
D) none of the above 
E) all of the above

Write a program that reads in and sums the squares of positive integers until a value that 0 or less is read in.

Which of the following control structures requires curly braces?

In a while loop,the Boolean_Expression is executed before each execution of the loop body.

What is the output of the following,if it were embedded in an otherwise correct and complete program and run? int x = 10; While (x > 0) { $\quad$ cout << x << " "; $\quad$ x= x + 3; } cout << endl;

Write the following do-while statement with a while construct,and maybe some extra code. x = 10; do { $\quad$ cout << x << endl; $\quad$ x = x - 3; } while ( x > 0 );

When a loop is nested in side another loop,a break or continue statement terminates or restarts the outermost loop of the nested loop structure.

The value of count is 0;limit is 10.Evaluate: (count != 0)||(limit < 20)

Which of the following loop statements is guaranteed to iterate the body of the loop at least once?

Suppose we have these declarations, int x = -1,y = 0,z = 1; This Boolean expression is correct and it does what the programmer intends. x < y < z

A switch statement must have

C++ Basics

Function Basics

Parameters and Overloading

Arrays

Structures and Classes

Constructors and Other Tools

Operator Overloading,friends,and References

Strings

Pointers and Dynamic Arrays

Separate Compilation and Namespaces

Streams and File IO

Recursion

Inheritance

Polymorphism and Virtual Functions

Templates

Linked Data Structures

Exception Handling

Standard Template Library

Patterns and Uml

Filters

Exam 2: Flow of Control

Write a program that reads in and sums the squares of positive integers until a value that 0 or less is read in.

Which of the following control structures requires curly braces?

In a while loop,the Boolean_Expression is executed before each execution of the loop body.

What is the output of the following,if it were embedded in an otherwise correct and complete program and run? int x = 10; While (x > 0) { \quad cout << x << " "; \quad x= x + 3; } cout << endl;

Write the following do-while statement with a while construct,and maybe some extra code. x = 10; do { \quad cout << x << endl; \quad x = x - 3; } while ( x > 0 );

When a loop is nested in side another loop,a break or continue statement terminates or restarts the outermost loop of the nested loop structure.

The value of count is 0;limit is 10.Evaluate: (count != 0)||(limit < 20)

Which of the following loop statements is guaranteed to iterate the body of the loop at least once?

Suppose we have these declarations, int x = -1,y = 0,z = 1; This Boolean expression is correct and it does what the programmer intends. x < y < z

A switch statement must have

C++ Basics

Function Basics

Parameters and Overloading

Arrays

Structures and Classes

Constructors and Other Tools

Operator Overloading,friends,and References

Strings

Pointers and Dynamic Arrays

Separate Compilation and Namespaces

Streams and File IO

Recursion

Inheritance

Polymorphism and Virtual Functions

Templates

Linked Data Structures

Exception Handling

Standard Template Library

Patterns and Uml

Filters

What is the output of the following,if it were embedded in an otherwise correct and complete program and run? int x = 10; While (x > 0) { $\quad$ cout << x << " "; $\quad$ x= x + 3; } cout << endl;

Write the following do-while statement with a while construct,and maybe some extra code. x = 10; do { $\quad$ cout << x << endl; $\quad$ x = x - 3; } while ( x > 0 );