CS201- Introduction to Programming current papers final term July 2011

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Question No: 1 ( Marks: 1 ) - Please choose one
If it is required to copy an array to another array then,
► Both arrays must be of the same size and data type
► Both arrays may be of different size
► Both arrays may be of different data type
► Both arrays may be of different size and type


Question No: 2 ( Marks: 1 ) - Please choose one
Dealing with structures and functions passing by reference is the most economical method
► True
► False


Question No: 3 ( Marks: 1 ) - Please choose one
eof( ), bad( ), good( ), clear( ) all are manipulators.
► True
► False


Question No: 4 ( Marks: 1 ) - Please choose one
Overloaded new operator function takes parameter of type size_t and returns
► void (nothing)
► void pointer
► object pointer
► int pointer


Question No: 5 ( Marks: 1 ) - Please choose one
When new operator is overloaded at global level then corresponding built-in new operator will not be visible to whole of the program.
► True
► False


Question No: 6 ( Marks: 1 ) - Please choose one
If there is more than one statement in the block of a for loop, which of the following must be placed at the beginning and the ending of the loop block?
► parentheses ( )
► braces { }
► brackets [ ]
► arrows < >


Question No: 7 ( Marks: 1 ) - Please choose one
The return type of a function that do not return any value must be ________
► float
► int
► void
► double


Question No: 8 ( Marks: 1 ) - Please choose one
UNIX has been developed in ________ language.
► JAVA
► B
► C
► FORTRAN


Question No: 9 ( Marks: 1 ) - Please choose one
Like member functions, ______ can also access the private data members of a class.
► Non-member functions
► Friend functions
► Any function outside class
► None of the given options


Question No: 10 ( Marks: 1 ) - Please choose one
Which of the following statement is best regarding declaration of friend function?
► Friend function must be declared after public keyword.
► Friend function must be declared after private keyword.
► Friend function must be declared at the top within class definition.
► It can be declared anywhere in class as these are not affected by the public and private keywords.


Question No: 11 ( Marks: 1 ) - Please choose one
The operator function overloaded for an Assignment operator (=) must be
► Non-member function of class
► Member function of class
► Friend function of class
► None of the given options


Question No: 12 ( Marks: 1 ) - Please choose one
The endl and flush are _______
► Functions
► Operators
► Manipulators
► Objects


Question No: 13 ( Marks: 1 ) - Please choose one
If a symbolic constant has been defined, it will be an error to define it again.
► True
► False


Question No: 14 ( Marks: 1 ) - Please choose one
The operator used for casting, in C, is standard ________ operator.
► none of the given options.
► cast
► cost
► const


Question No: 15 ( Marks: 1 ) - Please choose one
Constructors can not be overloaded like ordinary functions.
► True
► False


Question No: 16 ( Marks: 1 ) - Please choose one
Which of the following function call is correct for the function prototype?
defaultParameters ( int a, int b = 7, char z = ‘*’ );
► defaultParameters (5);
► defaultParameters (5, ‘8’);
► defaultParameters (6, ‘#’);
► defaultParameters (0, 0, ‘*’, 0);


Question No: 17 ( Marks: 1 ) - Please choose one
When an operator function is defined as member function for a binary Plus (+) operator then the number of argument it take is/are.
► Zero
► One
► Two
► N arguments


Question No: 18 ( Marks: 1 ) - Please choose one
We can not define a variable of user-defined data type in the class.
► True
► False


Question No: 19 ( Marks: 1 ) - Please choose one
When an object of a class is defined inside an other class then,
► Constructor of enclosing class will be called first
► Constructor of inner object will be called first
► Constructor and Destructor will be called simultaneously
► None of the given options


Question No: 20 ( Marks: 1 ) - Please choose one
The appropriate data type to store the number of rows and colums of the matrix is____________.
► float
► int
► char
► none of the given options.


Question No: 21 ( Marks: 1 ) - Please choose one
Class is a user defined___________.
► data type
► memory referee
► value
► none of the given options.


Question No: 22 ( Marks: 1 ) - Please choose one
A pointer variable can be,
► Decremented
► Incremented
► Multiplied
► Both Decremented and Decremented


Question No: 23 ( Marks: 1 ) - Please choose one
NULL value has been defined in ______ and _________ header files.
► strings.h and iostream.h
► ctype.h and conio.c
► conio.c and conio.h
► stdlib.h and stddef.h


Question No: 24 ( Marks: 1 ) - Please choose one
A Matrix can be composed of ints, floats or doubles as their elements. Best way is to handle this , _______________
► Write a separate class to handle each
► Use templates
► Use strings to store all types
► None of the given options


Question No: 25 ( Marks: 1 ) - Please choose one
"setprecision" manipulator will set
► The number of digits after the decimal point
► The number of digits before the decimal point
► The number of digits in a number
► None of the given options


Question No: 26 ( Marks: 1 ) - Please choose one
Which of the following option will be true, if we overload "-=" operator?
► only - operator needs to be overloaded
► Minus (-) and = operators need to be overloaded
► the -= operator need to be overloaded explicitly
► the - and = operators need to be overloaded implicitly


Question No: 27 ( Marks: 2 )
Suppose there is a template function ‘func’ having argument of type U and return type T. What will be the C++ syntax to call this function, passing a variable ‘x’ of type double and returning an int type?
Question No: 28 ( Marks: 2 )
Which variable will be used in inner code block if we have the same names of variable at outer code block and inner code block?
Question No: 29 ( Marks: 2 )
What is the benefit of reference and where can we use it?
Question No: 30 ( Marks: 2 )
Write the C++ code for the declaration of overloaded stream insertion and stream extraction operator for the object d of type Date.
Question No: 31 ( Marks: 3 )
What will be the output of following functions if we call these functions three times?
1)
void func1(){
int x = 0;
x++;
cout << x << endl;
}
2)
void func2(){
static int x = 0 ;
x++;
cout << x << endl ;
}
Question No: 32 ( Marks: 3 )
If the requested memory is not available in the system then what does calloc/malloc and new operator return?
Question No: 33 ( Marks: 3 )
Suppose an object of class A is declared as data member of class B.
(i) The constructor of which class will be called first?
(ii) The destructor of which class will be called first?
Question No: 34 ( Marks: 5 )
What is difference between Unary and binary operators and how they can be overloaded?
Question No: 35 ( Marks: 5 )
Suppose we have the following class.
class Matrix
{
private:
int Elements[3][3];
};
Write the operator function of stream extraction operator (>>) for this class.
Question No: 36 ( Marks: 5 )
What is meant by user interface and class interface in C++ ? And what role a class interface can play in user interface [Marks 5]