Question 1

Given that a typedef for IntPtr defines a pointer to an integer,what would be the correct declaration for a function that expects a reference to an integer pointer?

Accepted Answer

A) void f1 IntPtr& ptr); 
B) void f1 IntPtr&* ptr); 
C) void f1 IntPtr*& ptr); 
D) All of the above 
A) void f1 IntPtr& ptr); 
B) void f1 IntPtr&* ptr); 
C) void f1 IntPtr*& ptr); 
D) All of the above A

Question 2

The size of a dynamic array is defined at ___________

Accepted Answer

run-time

Question 3

If p1 is an integer pointer variable,with the value of 1000,p1++ changes P1 to point to the memory location 1001.

Accepted Answer

A) True 
 B)False  False

Question 4

In which case would you consider using a dynamic array?

Accepted Answer

A) If the array is small,and the size is known before the program runs. 
B) If the program needs to get the size of the array from the user 
C) If the array size is big,but known at compile time 
D) You should always use a dynamic array 
A) If the array is small,and the size is known before the program runs. 
B) If the program needs to get the size of the array from the user 
C) If the array size is big,but known at compile time 
D) You should always use a dynamic array

Question 5

Which of the following statements correctly returns the memory from the dynamic array pointer to by p1 to the freestore?

Accepted Answer

A) delete [] p1; 
B) delete p1[]; 
C) delete *p1; 
D) delete p1; 
A) delete [] p1; 
B) delete p1[]; 
C) delete *p1; 
D) delete p1;

Question 6

If p1 and p2 are both pointers that point to integers in memory,the condition p1==p2 will be true if the values that are in those memory locations are the same.

Accepted Answer

A) True 
 B)False

Question 7

What is the output of the following code fragment?
Int v1=2,v2=-1,*p1,*p2;
P1 = & v1;
P2= & v2;
P2=p1;
Cout << *p2 << endl;

Accepted Answer

A) 2 
B) -1 
C) -2 
D) 1 
A) 2 
B) -1 
C) -2 
D) 1

Question 8

In the following statement,all the variables are pointers.
int* p1,p2;

Accepted Answer

A) True 
 B)False

Question 9

Given that p1 is a pointer variable of the string class,which of the following are legal statements?

Accepted Answer

A) p1 = new int; 
B) cout << *p1; 
C) p1 = new char[10]; 
D) *p1 = new string; 
E) B and D 
A) p1 = new int; 
B) cout << *p1; 
C) p1 = new char[10]; 
D) *p1 = new string; 
E) B and D

Question 10

Dynamically created variables have no name.

Accepted Answer

A) True 
 B)False

Question 11

You can assign an array to a pointer variable.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following correctly declares a user-defined data type that defines a pointer to a float?

Accepted Answer

A) float* floatPtr ; 
B) typedef float* floatPtr; 
C) typedef floatPtr *float; 
D) typedef floatPtr* float 
A) float* floatPtr ; 
B) typedef float* floatPtr; 
C) typedef floatPtr *float; 
D) typedef floatPtr* float

Question 13

What is the output of the following code fragment?
Float *p1;
P1 = new float3);
Cout << *p1;

Accepted Answer

A) 3.0 
B) unknown,the address p1 points to is not initialized 
C) unknown,the code is illegal,p1 points to a dynamic array 
D) 0.0 
A) 3.0 
B) unknown,the address p1 points to is not initialized 
C) unknown,the code is illegal,p1 points to a dynamic array 
D) 0.0

Question 14

What is the output of the following code?
Int *p1,*p2;
P1 = new int;
P2 = new int;
*p1=11;
*p2=0;
P2=p1;
Cout << *p1 <<" " << *p2 << endl;

Accepted Answer

A) 11 0 
B) 0 11 
C) 11 11 
D) 0 0 
A) 11 0 
B) 0 11 
C) 11 11 
D) 0 0

Question 15

Write the code to return the dynamic memory pointed to by p1 to the freestore.

Accepted Answer

The answer of Write the code to return the dynamic...

Question 16

Which of the following assigns to p1 the pointer to the address of value?

Accepted Answer

A) *p1=&value; 
B) p1=value; 
C) p1=&value; 
D) &p1 = *value; 
A) *p1=&value; 
B) p1=value; 
C) p1=&value; 
D) &p1 = *value;

Question 17

Write the code to declare a dynamic array of strings use the string pointer variable p1)that has as many elements as the variable arraySize.

Accepted Answer

p1 = new s

Question 18

Dynamic variables are created at __________

Accepted Answer

The answer of Dynamic variables are created at __________...

Question 19

If two pointer variables point to the same memory location,what happens when one of the pointers is freed?

Accepted Answer

A) The other pointer should be considered to be un-initialized 
B) The other pointer still points to a valid memory address 
C) If you attempt to free the other pointer a run-time error will occur. 
D) All of the above 
E) A and C 
A) The other pointer should be considered to be un-initialized 
B) The other pointer still points to a valid memory address 
C) If you attempt to free the other pointer a run-time error will occur. 
D) All of the above 
E) A and C

Question 20

The & operator is called the _______________

Accepted Answer

The answer of The & operator is called the _______________...

Given that a typedef for IntPtr defines a pointer to an integer,what would be the correct declaration for a function that expects a reference to an integer pointer?

The size of a dynamic array is defined at ___________

If p1 is an integer pointer variable,with the value of 1000,p1++ changes P1 to point to the memory location 1001.

In which case would you consider using a dynamic array?

Which of the following statements correctly returns the memory from the dynamic array pointer to by p1 to the freestore?

If p1 and p2 are both pointers that point to integers in memory,the condition p1==p2 will be true if the values that are in those memory locations are the same.

What is the output of the following code fragment? Int v1=2,v2=-1,p1,p2; P1 = & v1; P2= & v2; P2=p1; Cout << *p2 << endl;

In the following statement,all the variables are pointers. int* p1,p2;

Given that p1 is a pointer variable of the string class,which of the following are legal statements?

Dynamically created variables have no name.

You can assign an array to a pointer variable.

Which of the following correctly declares a user-defined data type that defines a pointer to a float?

What is the output of the following code fragment? Float p1; P1 = new float3); Cout << p1;

What is the output of the following code? Int p1,p2; P1 = new int; P2 = new int; p1=11; p2=0; P2=p1; Cout << p1 <<" " << p2 << endl;

Write the code to return the dynamic memory pointed to by p1 to the freestore.

Which of the following assigns to p1 the pointer to the address of value?

Write the code to declare a dynamic array of strings use the string pointer variable p1)that has as many elements as the variable arraySize.

Dynamic variables are created at __________

If two pointer variables point to the same memory location,what happens when one of the pointers is freed?

The & operator is called the _______________

Introduction to Computer and C Programming

C++ Basics

More Flow of Control

Procedural Abstraction and Functions That Return a Value

Functions for All Sub Tasks

Io Streams As an Introduction to Objects and Classes

Arrays

Strings and Vectors

Defining Classes

Friends, overloaded Operators, and Arrays in Classes

Separate Compilation and Namespaces

Pointers and Linked Lists

Recursion

Inheritance

Exception Handling

Templates

Standard Template Library

Filters

Exam 9: Pointers and Dynamic Arrays

Given that a typedef for IntPtr defines a pointer to an integer,what would be the correct declaration for a function that expects a reference to an integer pointer?

The size of a dynamic array is defined at ___________

If p1 is an integer pointer variable,with the value of 1000,p1++ changes P1 to point to the memory location 1001.

In which case would you consider using a dynamic array?

Which of the following statements correctly returns the memory from the dynamic array pointer to by p1 to the freestore?

If p1 and p2 are both pointers that point to integers in memory,the condition p1==p2 will be true if the values that are in those memory locations are the same.

What is the output of the following code fragment? Int v1=2,v2=-1,*p1,*p2; P1 = & v1; P2= & v2; P2=p1; Cout << *p2 << endl;

In the following statement,all the variables are pointers. int* p1,p2;

Given that p1 is a pointer variable of the string class,which of the following are legal statements?

Dynamically created variables have no name.

You can assign an array to a pointer variable.

Which of the following correctly declares a user-defined data type that defines a pointer to a float?

What is the output of the following code fragment? Float *p1; P1 = new float3); Cout << *p1;

What is the output of the following code? Int *p1,*p2; P1 = new int; P2 = new int; *p1=11; *p2=0; P2=p1; Cout << *p1 <<" " << *p2 << endl;

Write the code to return the dynamic memory pointed to by p1 to the freestore.

Which of the following assigns to p1 the pointer to the address of value?

Write the code to declare a dynamic array of strings use the string pointer variable p1)that has as many elements as the variable arraySize.

Dynamic variables are created at __________

If two pointer variables point to the same memory location,what happens when one of the pointers is freed?

The & operator is called the _______________

Introduction to Computer and C Programming

C++ Basics

More Flow of Control

Procedural Abstraction and Functions That Return a Value

Functions for All Sub Tasks

Io Streams As an Introduction to Objects and Classes

Arrays

Strings and Vectors

Defining Classes

Friends, overloaded Operators, and Arrays in Classes

Separate Compilation and Namespaces

Pointers and Linked Lists

Recursion

Inheritance

Exception Handling

Templates

Standard Template Library

Filters

What is the output of the following code fragment? Int v1=2,v2=-1,p1,p2; P1 = & v1; P2= & v2; P2=p1; Cout << *p2 << endl;

What is the output of the following code fragment? Float p1; P1 = new float3); Cout << p1;

What is the output of the following code? Int p1,p2; P1 = new int; P2 = new int; p1=11; p2=0; P2=p1; Cout << p1 <<" " << p2 << endl;