Question 1

Switch can be used to test:

Accepted Answer

A)  int constants. 
B)  float constants. 
C)  string constants. 
D)  all types of constants. 
A)  int constants. 
B)  float constants. 
C)  string constants. 
D)  all types of constants. A

Question 2

Float and double variables should be used:

Accepted Answer

A)  To perform monetary calculations. 
B)  As counters. 
C)  To store true/false values. 
D)  As approximate representations of decimal numbers. 
A)  To perform monetary calculations. 
B)  As counters. 
C)  To store true/false values. 
D)  As approximate representations of decimal numbers. D

Question 3

Which of the following statements about the for statement is false?

Accepted Answer

A)  The three expressions in the for statement are optional. 
B)  The initialization and increment expressions can be comma-separated lists. 
C)  You must declare the control variable before the for statement. 
D)  A for statement can always be used to replace a while statement, and vice versa. 
A)  The three expressions in the for statement are optional. 
B)  The initialization and increment expressions can be comma-separated lists. 
C)  You must declare the control variable before the for statement. 
D)  A for statement can always be used to replace a while statement, and vice versa. C

Question 4

Which of the following is a poor programming practice?

Accepted Answer

A)  Indenting the statements in the body of each control structure. 
B)  Using floating-point values for counters in counter-controlled repetition. 
C)  Nesting multiple repetition structures. 
D)  Placing vertical spacing above and below control structures. 
A)  Indenting the statements in the body of each control structure. 
B)  Using floating-point values for counters in counter-controlled repetition. 
C)  Nesting multiple repetition structures. 
D)  Placing vertical spacing above and below control structures.

Question 5

An operator that associates from right to left is:

Accepted Answer

A)  "!=" 
B)  "," 
C)  ")" 
D)  "?:" 
A)  "!=" 
B)  "," 
C)  ")" 
D)  "?:"

Question 6

Of the following, which is not a logic error?

Accepted Answer

A)  Not placing curly braces around the body of an if that contains two statements. 
B)  Using == to assign a value to a variable. 
C)  Failing to initialize counter and total variables before the body of a loop. 
D)  Using commas instead of the two required semicolons in a for header. 
A)  Not placing curly braces around the body of an if that contains two statements. 
B)  Using == to assign a value to a variable. 
C)  Failing to initialize counter and total variables before the body of a loop. 
D)  Using commas instead of the two required semicolons in a for header.

Question 7

Which of the following is not one of the C++ control structures?

Accepted Answer

A)  if 
B)  switch 
C)  select 
D)  do…while 
A)  if 
B)  switch 
C)  select 
D)  do…while

Question 8

Which of the following is false?

Accepted Answer

A)  The effects of break and continue statements can be achieved by structured programming techniques. 
B)  break and continue statements can make a program perform faster than with the corresponding structured techniques. 
C)  Many programmers feel that break and continue violate structured programming. 
D)  You should always try to write the fastest, smallest code possible before attempting to make it simple and correct. 
A)  The effects of break and continue statements can be achieved by structured programming techniques. 
B)  break and continue statements can make a program perform faster than with the corresponding structured techniques. 
C)  Many programmers feel that break and continue violate structured programming. 
D)  You should always try to write the fastest, smallest code possible before attempting to make it simple and correct.

Question 9

Which of the following is false?

Accepted Answer

A)  break and continue statements alter the flow of control. 
B)  continue statements skip the remaining statements in the current iteration of the body of the loop in which they're embedded. 
C)  break statements exit from the loop in which they're embedded. 
D)  continue and break statements may be embedded only within repetition statements. 
A)  break and continue statements alter the flow of control. 
B)  continue statements skip the remaining statements in the current iteration of the body of the loop in which they're embedded. 
C)  break statements exit from the loop in which they're embedded. 
D)  continue and break statements may be embedded only within repetition statements.

Question 10

The ____________, __________ and ____________ are the only three forms of control necessary.

Accepted Answer

A)  switch, if, else. 
B)  sequence, selection, repetition. 
C)  break, continue, if…else. 
D)  for, while, do…while. 
A)  switch, if, else. 
B)  sequence, selection, repetition. 
C)  break, continue, if…else. 
D)  for, while, do…while.

Question 11

Variables are also known as:

Accepted Answer

A)  lvalues, but can be used as rvalues. 
B)  lvalues, and cannot be used as rvalues. 
C)  rvalues, and cannot be used as lvalues. 
D)  Constant variables. 
A)  lvalues, but can be used as rvalues. 
B)  lvalues, and cannot be used as rvalues. 
C)  rvalues, and cannot be used as lvalues. 
D)  Constant variables.

Question 12

If a variable is declared in the initialization expression of a for statement, then:

Accepted Answer

A)  It is automatically reinitialized to zero once the loop is finished. 
B)  The scope of the variable is restricted to that for loop. 
C)  It retains its final value after the loop is finished. 
D)  It can not be used in any structures that are nested in that for structure. 
A)  It is automatically reinitialized to zero once the loop is finished. 
B)  The scope of the variable is restricted to that for loop. 
C)  It retains its final value after the loop is finished. 
D)  It can not be used in any structures that are nested in that for structure.

Question 13

The expression if num != 65 ) cannot be replaced by:

Accepted Answer

A) if num > 65 || num < 65 ) B) if ! num == 65 ) ) C) if num - 65 ) D) if ! num - 65 ) ) A) if num > 65 || num < 65 ) B) if ! num == 65 ) ) C) if num - 65 ) D) if ! num - 65 ) )

Question 14

The OR ||) operator:

Accepted Answer

A)  Has higher precedence than the AND &&) operator. 
B)  Stops evaluation upon finding one condition to be true. 
C)  Associates from right to left. 
D)  Is a ternary operator. 
A)  Has higher precedence than the AND &&) operator. 
B)  Stops evaluation upon finding one condition to be true. 
C)  Associates from right to left. 
D)  Is a ternary operator.

Question 15

Which of the following is not one the rules for forming structured programs?

Accepted Answer

A)  Begin with the "simplest activity diagram." 
B)  Any transition arrow can be reversed. 
C)  Any action state can be replaced by two action states in sequence. 
D)  Any action state can be replaced by any control statement. 
A)  Begin with the "simplest activity diagram." 
B)  Any transition arrow can be reversed. 
C)  Any action state can be replaced by two action states in sequence. 
D)  Any action state can be replaced by any control statement.

Question 16

What will the following program segment do?
Int counter = 1;
Do
{
Cout << counter << " ";
} while ++counter <= 10 );

Accepted Answer

A)  Print the numbers 1 through 11. 
B)  Print the numbers 1 through 10. 
C)  Print the numbers 1 through 9. 
D)  Cause a syntax error. 
A)  Print the numbers 1 through 11. 
B)  Print the numbers 1 through 10. 
C)  Print the numbers 1 through 9. 
D)  Cause a syntax error.

Question 17

If a do…while structure is used:

Accepted Answer

A)  An infinite loop cannot take place. 
B)  Counter-controlled repetition is not possible. 
C)  The body of the loop will execute at least once. 
D)  An off-by-one error cannot occur. 
A)  An infinite loop cannot take place. 
B)  Counter-controlled repetition is not possible. 
C)  The body of the loop will execute at least once. 
D)  An off-by-one error cannot occur.

Question 18

In a switch structure:

Accepted Answer

A)  A break is required after each case. 
B)  Multiple actions in a case do not need to be enclosed in braces. 
C)  A default case is required. 
D)  A break is required after the default case. 
A)  A break is required after each case. 
B)  Multiple actions in a case do not need to be enclosed in braces. 
C)  A default case is required. 
D)  A break is required after the default case.

Question 19

Which of the following is correct when labeling cases in a switch structure?

Accepted Answer

A)  case1 
B)  Case1 
C)  case 1 
D)  Case 1 
A)  case1 
B)  Case1 
C)  case 1 
D)  Case 1

Question 20

Consider the execution of the following for loop
For int x = 1; x < 5; increment )
Cout << x + 1 << endl;
If the last value printed is 5, which of the following might have been used for increment?

Accepted Answer

A)  x++ 
B)  x += 1 
C)  ++x 
D)  Any of the above. 
A)  x++ 
B)  x += 1 
C)  ++x 
D)  Any of the above.

Exam 4: Control Statements, Part 2

Switch can be used to test:

Float and double variables should be used:

Which of the following statements about the for statement is false?

Which of the following is a poor programming practice?

An operator that associates from right to left is:

Of the following, which is not a logic error?

Which of the following is not one of the C++ control structures?

Which of the following is false?

Which of the following is false?

The ____________, __________ and ____________ are the only three forms of control necessary.

Variables are also known as:

If a variable is declared in the initialization expression of a for statement, then:

The expression if num != 65 ) cannot be replaced by:

The OR ||) operator:

Which of the following is not one the rules for forming structured programs?

What will the following program segment do? Int counter = 1; Do { Cout << counter << " "; } while ++counter <= 10 );

If a do…while structure is used:

In a switch structure:

Which of the following is correct when labeling cases in a switch structure?

Consider the execution of the following for loop For int x = 1; x < 5; increment ) Cout << x + 1 << endl; If the last value printed is 5, which of the following might have been used for increment?

Introduction to Computers, the Internet and the World Wide Web

Introduction to C Programming

Control Statements, Part 1

Functions and an Introduction to Recursion

Arrays and Vectors

Pointers and Pointer-Based Strings

Sequential-Access Files

Classes

Classes: a Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Templates

Stream Inputoutput

Exception Handling

File Processing

Class String and String Stream Processing

Searching and Sorting

Data Structures

Standard Template Library Stl

Bits, Characters, C Strings and Structs

Boost Libraries, Technical Report 1 and C0x

Other Topics

ATM Case Study, Part 1: Object-Oriented Design With the Uml

ATM Case Study, Part 2: Implementing an Object-Oriented Design

Game Programming With Ogre

Filters

The , and __ are the only three forms of control necessary.