Oops with C++

c++

1-1. C++ was originally developed by
A.  Nicolas Wirth
B.  Donald Knuth
C.  Bjarne Stroustrup            `
D.  Ken Thompson

1-2. The standard C++ comment
A.  /
B.  // 
C.  /* and */
D.  None of these

1-3. The preprocessor directive #include is required if
A.  Console output is used
B.  Console input is used
C.  Both console input and output is used
D.  None of these

1-4. The operator << is called
A.  an insertion operator
B.  put to operator
C.  either a or b
D.  None of these

1-5. The operator >> is called
A.  an extraction operator
B.  a get from operator
C.  either a or b
D.  get to operator

1-6. The C++ symbol <<
A.  perform the action of sending the value of expression listed as its right to the
outputs strewn as the left.
B.  is used to indicate the action from right to left
C.  is adopted to resemble an arrow
D.  All of above

1-7. When a language has the capability to produce new data type, it is called
A.  Extensible
B.  Overloaded
C.  Encapsulated
D.  Reprehensible

1-8. C++ name was suggested by
A.  Rrick Mascitti
B.  Bjarne Stroustrup
C.  Donald Knuth
D.  Ken Thompson

1-9. What is a reference?
A.  an operator
B.  a reference is an alias for an object
C.  used to rename an object
D.  None of these

1-10. State the object oriented languages
A.  C++
B.  Java
C.  Eiffel
D.  All of the above

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Answers
1 – C / 2 – B / 3 – C / 4 – C / 5 – C / 6 – D / 7 – A / 8 – A / 9 – B / 10 – D

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-1. A constructor is called whenever
A.  a object is declared
B.  an object is used
C.  a class is declared
D.  a class is used

2-2. Overload function in C++
A.  a group function with the same name
B.  all have the same number and type of arguments
C.  functions with same name and same number and type of arguments
D.  All of the above

2-3. Operator overloading is 
A.  making C++ operators works with objects
B.  giving new meaning to existing C++ operators
C.  making new C++ operator
D.  both a & b above

2-4. A constructor is called whenever
A.  a object is declared
B.  an object is used
C.  a class is declared
D.  a class is used

2-5. A class having no name
A.  is not allowed
B.  can’t have a constructor
C.  can’t have a destructor
D.  can’t be passed as an argument

2-6. The differences between constructors and destructor are
A.  constructors can take arguments but destructor can’t
B.  constructors can be overloaded but destructors can’t be overloaded
C.  both a & b
D.  None of these

2-7. A destructor takes
A.  one argument
B.  two arguments
C.  three arguments
D.  Zero arguments

2-8. Constructors are used to
A.  initialize the objects
B.  construct the data members
C.  both a & b
D.  None of These

2-9. In C++ a function contained within a class is called
A.  a member function
B.  an operator
C.  a class function
D.  a method

2-10. The fields in a class of a C++ program are by default
A.  protected
B.  public
C.  private
D.  None of these

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Answers
1 – A / 2 – A / 3 – D / 4 – A / 5 – C / 6 – C / 7 – D / 8 – A / 9 – A / 10 – C

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1. Que.

Which of the following type of class allows only one object of it to be created?

A. Virtual class B. Abstract class C. Singleton class D. Friend class Answer: Option C  Que.  Which one is not a correct variable type in C++? A.  float B. real C. int D.  double Show Answer  B Que. Which operation is used as Logical 'AND' A.Operator-& B.Operator-|| C.Operator-&& D.Operator + Answer : Operator-&& [Option : C] Que. An expression A.B in C++ means ____ A. A is member of object B B. B is member of Object A C. Product of A and B D. None of these Answer : B is member of Object A [Option : B]   Que. C++ code line ends with ___ A Semicolon (;) B. A Fullstop(.) C. A Comma (,) D.A Slash (/) Answer : A Semicolon (;) [Option : A] .     ______ function is used to allocate space for array in memory. A. malloc() B. realloc() C. alloc() D. calloc() Answer : calloc() [Option : D] .     Que A ponter pointing to a variable that is not initialized is called ____ A. Void Pointer B. Null Pointer  C. Empty Pointer D. Wild Pointer Answer : Null Pointer [Option : B]      QueDefault constructor has ____ arguments. A. No argument B. One Argument C. Two Argument D. None of these Answer : No argument [Option : A] Que .A class whos objects can not be created is known as _____ A. Absurd Class B. Dead Class C. Super Class D. Abstract Class Answer : Abstract Class [Option : D] Q.  Which class allows only one object to be created. A. Nuclear Family Class B. Abstruct Class C. Sigleton Class D. Numero Uno Class Answer : Sigleton Class [Option : C]  Q. Reusability of code in C++ is achieved through ____ A. Polymorphism B. Inheritance C. Encapsulation D.Both A and B Answer : Inheritance [Option : B] Q. In CPP, members of a class are ______ by default. A. Public B. Private C. Protected D. Static Answer : Private [Option : B] Q.  In C++ Program, inline fuctions are expanded during ____ A. Run Time B. Compile Time C. Debug Time D. Coding Time Answer : Run Time [Option : A] Q.  To perfor file input / output operation in C++, we must include which header file ? A. <fiostream> B. <ifstream> C. <ofstream> D. <fstream> Answer : <fstream> [Option : D] Q.  An exceptio in C++ can be generated using which keywords. A. thrown B. threw  C. throw D. throws Answer : throw [Option : C] Data Type Size (in bytes) Range short int 2 -32,768 to 32,767 unsigned short int 2 0 to 65,535 unsigned int 4 0 to 4,294,967,295 int 4 -2,147,483,648 to 2,147,483,647 long int 4 -2,147,483,648 to 2,147,483,647 unsigned long int 4 0 to 4,294,967,295 long long int 8 -(2^63) to (2^63)-1 unsigned long long int 8 0 to 18,446,744,073,709,551,615 signed char 1 -128 to 127 unsigned char 1 0 to 255 float 4 double 8 long double 12 wchar_t 2 or 4 1 wide character

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