Q1. A. What is unary operator? List out the different
operators involved in the unary operator.
B. What is an adjust field format flag?
Q2. A. Distinguish between a # include and #define.
B. Can a list of string be stored within a two dimensional
array?
Q3. A. Explain how a pointer to function can be declared in
C++?
B. List the merits and demerits of declaring a nested class
in
C++?
Q4. A. What are the syntactic rules to be avoid ambiguity
in multiple
inheritence?
B. Explain the operation of overloading of an assignment
operator.
Q5. A. Explain how the virtual base class is different from
the
conventional base classes of the opps.
B. Explain how an exception handler is defined and invoked
in a
Program.
Q6. A. What is a binary file? List the merits and demerits
of the binary
file usagein C++.
B. Write short notes on Text Manipulation Routines.
C. Write bites in Turbo c++ Header ("Include") Files.
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Answer / achal ubbott
1. A unary operator is one which has only one operand. e.g.
post/pre increment operator.
3. A function pointer is declared as following. Rarely used
int (*fp)(int);
where fp is pointer to a function with an integer as
argument and returns an integer value.
| Is This Answer Correct ? | 21 Yes | 6 No |
Answer / rck
5)A.
Virtual Base Class is the concept comes under multipath inheritance.If a class (for ex:class D) dervied from two base classes(class B and class C) which are already derived from a single base class(class A) is called multipath inheritance.
Now the derived class (D) will acquire properties of base class (A) form both classes(B and C) thus leads to ambiguity.In order to avoid that we declare Virtual infront of the base class thus only one copy of the class is derived to the derived class (D).
| Is This Answer Correct ? | 8 Yes | 1 No |
Answer / arun prasad v.s
Nested Classes:
Merits:
Solves one of the problems in Multiple inheritance.
Lets say, Class MyDerived has to implement 2 interfaces IA &
IB, both interfaces having a method Init() with same
signature. If MyDerived implements both, it cannot specify 2
Init() methods with with same signature.
This limitation forces us to use nested classes, where
MyDerived shall have 2 nested classes MyA:public IA &
MyB:public IB and they each have their own implementation of
Init() method.
Demerits:
Still thinking ...:) May be code complexity ?
| Is This Answer Correct ? | 7 Yes | 0 No |
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