Question 1

____ is a parameterized stream manipulator.

Accepted Answer

A)  endl 
B)  fixed 
C)  scientific 
D)  setfill 
A)  endl 
B)  fixed 
C)  scientific 
D)  setfill

Question 2

Suppose that ch1 and ch2 are char variables and the input is: WXYZ
What is the value of ch2 after the following statements execute?

Accepted Answer

A)  W 
B)  X 
C)  Y 
D)  Z 
A)  W 
B)  X 
C)  Y 
D)  Z

Question 3

Suppose that ch1 and ch2 are char variables, and alpha is an int variable. The input is: ​
A 18
​
What are the values after the following statement executes?
​
  ​

Accepted Answer

A)  ch1 = 'A', ch2 = ' ', alpha = 18 
B)  ch1 = 'A', ch2 = '1', alpha = 8 
C)  ch1 = 'A', ch2 = ' ', alpha = 1 
D)  ch1 = 'A', ch2 = '
', alpha = 1 
A)  ch1 = 'A', ch2 = ' ', alpha = 18 
B)  ch1 = 'A', ch2 = '1', alpha = 8 
C)  ch1 = 'A', ch2 = ' ', alpha = 1 
D)  ch1 = 'A', ch2 = '
', alpha = 1

Question 4

Suppose that ch1, ch2, and ch3 are variables of the type char. The input is: ​
A B
C
​
Choose the value of ch3 after the following statement executes:
​
Cin >> ch1 >> ch2 >> ch3;
​

Accepted Answer

A)  'A' 
B)  'B' 
C)  'C' 
D)  '
' 
A)  'A' 
B)  'B' 
C)  'C' 
D)  '
'

Question 5

Consider the following program segment.   Which of the following statements at Line 3 can be used to open the file progdata.dat and input data from this file into x and y at Line 4?

Accepted Answer

A)  inFile.open("progdata.dat"); 
B)  inFile(open,"progdata.dat"); 
C)  open.inFile("progdata.dat"); 
D)  open(inFile,"progdata.dat"); 
A)  inFile.open("progdata.dat"); 
B)  inFile(open,"progdata.dat"); 
C)  open.inFile("progdata.dat"); 
D)  open(inFile,"progdata.dat");

Question 6

Suppose that x = 25.67, y = 356.876, and z = 7623.9674. What is the output of the following statements?

Accepted Answer

A)  25.67 356.87 7623.96 
B)  25.67 356.87 7623.97 
C)  25.67 356.88 7623.97 
D)  25.67 356.876 7623.967 
A)  25.67 356.87 7623.96 
B)  25.67 356.87 7623.97 
C)  25.67 356.88 7623.97 
D)  25.67 356.876 7623.967

Question 7

In an output statement, each occurrence of endl advances the cursor to the end of the current line on an output device.

Accepted Answer

A) True 
 B)False

Question 8

Suppose that x = 1565.683, y = 85.78, and z = 123.982. What is the output of the following statements?

Accepted Answer

A)  1565.683 85.8000 123.98 
B)  1565.680 85.8000 123.98 
C)  1565.683 85.7800 123.98 
D)  1565.683 85.780 123.980 
A)  1565.683 85.8000 123.98 
B)  1565.680 85.8000 123.98 
C)  1565.683 85.7800 123.98 
D)  1565.683 85.780 123.980

Question 9

Suppose that x is an int variable, y is a double variable, and z is an int variable. The input is: ​
15 76.3 14
​
Choose the values after the following statement executes:
​
Cin >> x >> y >> z;
​

Accepted Answer

A)  x = 15, y = 76, z = 14 
B)  x = 15, y = 76, z = 0 
C)  x = 15, y = 76.3, z = 14 
D)  x = 15.0, y = 76.3, z = 14.0 
A)  x = 15, y = 76, z = 14 
B)  x = 15, y = 76, z = 0 
C)  x = 15, y = 76.3, z = 14 
D)  x = 15.0, y = 76.3, z = 14.0

Question 10

Suppose that x and y are int variables, and z is a double variable. The input is: ​
28 32.6 12
​
Choose the values of x, y, and z after the following statement executes:
​
Cin >> x >> y >> z;
​

Accepted Answer

A)  x = 28, y = 32, z = 0.6 
B)  x = 28, y = 32, z = 12.0 
C)  x = 28, y = 12, z = 32.6 
D)  x = 28, y = 12, z = 0.6 
A)  x = 28, y = 32, z = 0.6 
B)  x = 28, y = 32, z = 12.0 
C)  x = 28, y = 12, z = 32.6 
D)  x = 28, y = 12, z = 0.6

Question 11

Suppose that x and y are int variables, ch is a char variable, and the input is: 4 2 A 12
Choose the values of x, y, and ch after the following statement executes:
Cin >> x >> ch >> y;

Accepted Answer

A)  x = 4, ch = 2, y = 12 
B)  x = 4, ch = A, y = 12 
C)  x = 4, ch = ' ', y = 2 
D)  This statement results in input failure 
A)  x = 4, ch = 2, y = 12 
B)  x = 4, ch = A, y = 12 
C)  x = 4, ch = ' ', y = 2 
D)  This statement results in input failure

Question 12

It is a good idea to redefine cin and cout in your programs.

Accepted Answer

A) True 
 B)False

Question 13

Suppose that alpha, beta, and gamma are int variables and the input is: 100 110 120
200 210 220
300 310 320
What is the value of gamma after the following statements execute?

Accepted Answer

A)  100 
B)  200 
C)  300 
D)  320 
A)  100 
B)  200 
C)  300 
D)  320

Question 14

C++ comes with a wealth of functions, called ____________________ functions, that are written by other programmers.

Accepted Answer

predefined

Question 15

The function ____________________ returns the next character in the input stream; it does not remove the character from the input stream.

Accepted Answer

The answer of The function ____________________ returns the next character...

Question 16

Suppose that x is an int variable, ch is a char variable, and the input is: 276.
Choose the values after the following statement executes:
Cin >> ch >> x;

Accepted Answer

A)  ch = '2', x = 76 
B)  ch = '276', x = '.' 
C)  ch = ' ', x = 276 
D)  ch = 'b', x = 76 
A)  ch = '2', x = 76 
B)  ch = '276', x = '.' 
C)  ch = ' ', x = 276 
D)  ch = 'b', x = 76

Question 17

When you want to process only partial data, you can use the stream function ____ to discard a portion of the input.

Accepted Answer

A)  clear 
B)  skip 
C)  delete 
D)  ignore 
A)  clear 
B)  skip 
C)  delete 
D)  ignore

Question 18

Suppose that x is an int variable and y is a double variable. The input is: ​
10 20.7
​
Choose the values after the following statement executes: cin >> x >> y;.

Accepted Answer

A)  x = 10, y = 20 
B)  x = 10, y = 20.0 
C)  x = 10, y = 20.7 
D)  x = 10, y = 21.0 
A)  x = 10, y = 20 
B)  x = 10, y = 20.0 
C)  x = 10, y = 20.7 
D)  x = 10, y = 21.0

Question 19

What is the output of the following statements?

Accepted Answer

A)  12345678901234567890
***18 Happy Sleepy 
B)  12345678901234567890
***18**Happy**Sleepy 
C)  12345678901234567890
***18**Happy Sleepy 
D)  12345678901234567890
***18**Happy Sleepy** 
A)  12345678901234567890
***18 Happy Sleepy 
B)  12345678901234567890
***18**Happy**Sleepy 
C)  12345678901234567890
***18**Happy Sleepy 
D)  12345678901234567890
***18**Happy Sleepy**

Question 20

In the statement cin >> x;, x can be a variable or an expression.

Accepted Answer

A) True 
 B)False

____ is a parameterized stream manipulator.

Suppose that ch1 and ch2 are char variables and the input is: WXYZ What is the value of ch2 after the following statements execute?

Suppose that ch1 and ch2 are char variables, and alpha is an int variable. The input is: A 18 What are the values after the following statement executes?

Suppose that ch1, ch2, and ch3 are variables of the type char. The input is: A B C Choose the value of ch3 after the following statement executes: Cin >> ch1 >> ch2 >> ch3;

Consider the following program segment. Which of the following statements at Line 3 can be used to open the file progdata.dat and input data from this file into x and y at Line 4?

Suppose that x = 25.67, y = 356.876, and z = 7623.9674. What is the output of the following statements?

In an output statement, each occurrence of endl advances the cursor to the end of the current line on an output device.

Suppose that x = 1565.683, y = 85.78, and z = 123.982. What is the output of the following statements?

Suppose that x is an int variable, y is a double variable, and z is an int variable. The input is: 15 76.3 14 Choose the values after the following statement executes: Cin >> x >> y >> z;

Suppose that x and y are int variables, and z is a double variable. The input is: 28 32.6 12 Choose the values of x, y, and z after the following statement executes: Cin >> x >> y >> z;

Suppose that x and y are int variables, ch is a char variable, and the input is: 4 2 A 12 Choose the values of x, y, and ch after the following statement executes: Cin >> x >> ch >> y;

It is a good idea to redefine cin and cout in your programs.

Suppose that alpha, beta, and gamma are int variables and the input is: 100 110 120 200 210 220 300 310 320 What is the value of gamma after the following statements execute?

C++ comes with a wealth of functions, called ____________________ functions, that are written by other programmers.

The function ____________________ returns the next character in the input stream; it does not remove the character from the input stream.

Suppose that x is an int variable, ch is a char variable, and the input is: 276. Choose the values after the following statement executes: Cin >> ch >> x;

When you want to process only partial data, you can use the stream function ____ to discard a portion of the input.

Suppose that x is an int variable and y is a double variable. The input is: 10 20.7 Choose the values after the following statement executes: cin >> x >> y;.

What is the output of the following statements?

In the statement cin >> x;, x can be a variable or an expression.

An Overview of Computers and Programming Languages

Basic Elements of C++

Control Structures I Selection

Control Structures II Repetition

User-Defined Function

Namespaces, the Class String, and User-Defined Simple Data Types

Arrays

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Overloading and Templates

Exception Handling

Recursion

Searching and Sorting

Linked Lists

Stacks and Queues

Filters

Exam 3: Inputoutput

____ is a parameterized stream manipulator.

Suppose that ch1 and ch2 are char variables and the input is: WXYZ What is the value of ch2 after the following statements execute?

Suppose that ch1 and ch2 are char variables, and alpha is an int variable. The input is: ​ A 18 ​ What are the values after the following statement executes? ​ ​

Suppose that ch1, ch2, and ch3 are variables of the type char. The input is: ​ A B C ​ Choose the value of ch3 after the following statement executes: ​ Cin >> ch1 >> ch2 >> ch3; ​

Consider the following program segment. Which of the following statements at Line 3 can be used to open the file progdata.dat and input data from this file into x and y at Line 4?

Suppose that x = 25.67, y = 356.876, and z = 7623.9674. What is the output of the following statements?

In an output statement, each occurrence of endl advances the cursor to the end of the current line on an output device.

Suppose that x = 1565.683, y = 85.78, and z = 123.982. What is the output of the following statements?

Suppose that x is an int variable, y is a double variable, and z is an int variable. The input is: ​ 15 76.3 14 ​ Choose the values after the following statement executes: ​ Cin >> x >> y >> z; ​

Suppose that x and y are int variables, and z is a double variable. The input is: ​ 28 32.6 12 ​ Choose the values of x, y, and z after the following statement executes: ​ Cin >> x >> y >> z; ​

Suppose that x and y are int variables, ch is a char variable, and the input is: 4 2 A 12 Choose the values of x, y, and ch after the following statement executes: Cin >> x >> ch >> y;

It is a good idea to redefine cin and cout in your programs.

Suppose that alpha, beta, and gamma are int variables and the input is: 100 110 120 200 210 220 300 310 320 What is the value of gamma after the following statements execute?

C++ comes with a wealth of functions, called ____________________ functions, that are written by other programmers.

The function ____________________ returns the next character in the input stream; it does not remove the character from the input stream.

Suppose that x is an int variable, ch is a char variable, and the input is: 276. Choose the values after the following statement executes: Cin >> ch >> x;

When you want to process only partial data, you can use the stream function ____ to discard a portion of the input.

Suppose that x is an int variable and y is a double variable. The input is: ​ 10 20.7 ​ Choose the values after the following statement executes: cin >> x >> y;.

What is the output of the following statements?

In the statement cin >> x;, x can be a variable or an expression.

An Overview of Computers and Programming Languages

Basic Elements of C++

Control Structures I Selection

Control Structures II Repetition

User-Defined Function

Namespaces, the Class String, and User-Defined Simple Data Types

Arrays

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Overloading and Templates

Exception Handling

Recursion

Searching and Sorting

Linked Lists

Stacks and Queues

Filters

Suppose that ch1 and ch2 are char variables, and alpha is an int variable. The input is: A 18 What are the values after the following statement executes?

Suppose that ch1, ch2, and ch3 are variables of the type char. The input is: A B C Choose the value of ch3 after the following statement executes: Cin >> ch1 >> ch2 >> ch3;

Suppose that x is an int variable, y is a double variable, and z is an int variable. The input is: 15 76.3 14 Choose the values after the following statement executes: Cin >> x >> y >> z;

Suppose that x and y are int variables, and z is a double variable. The input is: 28 32.6 12 Choose the values of x, y, and z after the following statement executes: Cin >> x >> y >> z;

Suppose that x is an int variable and y is a double variable. The input is: 10 20.7 Choose the values after the following statement executes: cin >> x >> y;.