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OOPS with Java
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Course Name
BSc IT (Bachelor of Science in Information Technology)
Subject Code BT0074 (OOPS with Java )
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PART - A
PART - B
PART - C
Subject : OOPS with Java
BT0074 : PART - B
| Q. 1 | In the following code segment, locate the
errors and correct them this code is written to
calculate area of a triangle using the formula
A =1/2 * base * height // upto two digits of
precision
class Shape ( int base, int height) // Line |
| | A) | Computation at line 3 will always result in
zero; type-casting is required |
| B) | Line 2 has to be modified to allow compute
to return a real number upto 2 digits of
precision | | C) | Both A) and B) | | D) | There are no errors ; now the function is
required that will call compute ( ) and get the
result | | | | | Q. 2 | Fill in the blanks
i) When an object of a _____ is created, the
base class constructor is executed followed by
its own constructor
ii) ___ are applied in the reverse order in a
class hierarchy |
| | A) | friend class, templates |
| B) | derived class, destructors | | C) | base class, constructors | | D) | abstract class, inline function | | | | | Q. 3 | What does the following code represent?
Class A
{};
class B
{A a;} |
| | A) | Inheritance |
| B) | Derived class | | C) | Containership | | D) | Polymorphism | | | | | Q. 4 | Fill in the blanks from the given set of
words.
"Run-time polymorphism is implemented by
using
i) Operator overloading
ii) Inheritance
iii) Virtual functions
iv) Function overloading |
| | A) | ii) and iii) |
| B) | i) and iv) | | C) | iii) and iv) | | D) | None of these | | | | | Q. 5 | Which of the following operators can be
overloaded in C++ ? |
| | A) | > |
| B) | = | | C) | C)? : | | D) | None of these | | | |
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