C++ Chapter 12 – Flashcards

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question
If p is a pointer variable, the statement p = p + 1; is valid in C++.
answer
True
question
What is the output of the following code? int *p; int x; x = 12; p = &x; cout << x << ", "; *p = 81; cout << *p << endl;
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12, 81
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The ____ constructor is executed when an object is declared and initialized by using the value of another object.
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copy
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In C++, virtual functions are declared using the reserved word ____.
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virtual
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Which of the following operations is allowed on pointer variables?
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==
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What is the output of the following statements? int x = 33; int *q; q = &x; cout << *q << endl;
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33
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In C++, the dot operator has a lower precedence than the dereferencing operator.
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False
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Given the declaration int *a;, the statement a = new int[50]; dynamically allocates an array of 50 components of the type ____.
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int
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What is the value of x after the following statements execute? int x = 25; int *p; p = &x; *p = 46;
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46
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An array created during the execution of a program is called a(n) ____ array.
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dynamic
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The dereferencing operator is also known as the indirection operator and refers to the object to which its operand points.
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True
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Given the declaration int *p; The statement p = new int[50]; dynamically allocates an array of 50 components of type int and p contains the base address of the array.
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True
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A pointer variable is a variable whose content is a memory address
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True
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In a ____ copy, two or more pointers of the same type point to the same memory.
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shallow
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What is the output of the following code? int *p; int x; x = 76; p = &x; *p = 43; cout << x << ", " << *p << endl;
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43, 43
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In the statement int* p, q; p and q are pointer variables.
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False
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The ____ operator can be used to return the address of a private data member of a class.
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address of
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In C++, ____ is called the address of operator.
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&
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Which of the following would be appropriate syntax for the heading of a copy constructor for a class called rulerType?
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rulerType(const rulerType& myRuler)
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Variables that are created during program execution are called static variables.
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False
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In C++, the member access operator arrow is >>.
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False
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The code int *p; declares p to be a(n) ____ variable.
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pointer
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In a ____ copy, two or more pointers have their own data.
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deep
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In C++, pointer variables are declared using the reserved word pointer.
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False
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Given the statement double *p;, the statement p++; will increment the value of p by ____ byte(s).
answer
eight
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Which of the following can be used to initialize a pointer variable?
answer
nullptr
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ptrMemberVarType objectThree(objectOne); The values of the member variables of objectOne are being copied into the corresponding member variables of objectThree. This initialization is called the ____.
answer
member-wise initialization
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