1
GATE CSE 2003
MCQ (Single Correct Answer)
+2
-0.6
Consider the following class definitions in a hypothetical Object Oriented
language that supports inheritance and uses dynamic binding. The language
should not be assumed to be either Java or C++, though the syntax is similar.
Px = new Q();
Qy = new Q();
Pz = new Q();
x.f(1); ((P)y).f(1); z.f(1);
Here ((P)y) denotes a typecast of y to P. The output produced by executing the above program fragment will be
Class P {
void f(int i) {
print(i);
}
}
Class Q subclass of P {
void f(int i) {
print(2*i);
}
}
Now consider the following program fragment:
Px = new Q();
Qy = new Q();
Pz = new Q();
x.f(1); ((P)y).f(1); z.f(1);
Here ((P)y) denotes a typecast of y to P. The output produced by executing the above program fragment will be
2
GATE CSE 2003
MCQ (Single Correct Answer)
+1
-0.3
Assume the following C variable declaration
I. A[2]
II. A[2] [3]
III. B[1]
IV. B[2] [3]
Which will not give compile-time errors if used as left hand sides of assignment statements in a C program?
int * A[10], B[10][10];
Of the following expressionsI. A[2]
II. A[2] [3]
III. B[1]
IV. B[2] [3]
Which will not give compile-time errors if used as left hand sides of assignment statements in a C program?
3
GATE CSE 2003
MCQ (Single Correct Answer)
+2
-0.6
Consider the C program shown below.
#include < stdio.h >
#define print(x) printf("%d ", x)
int x;
void Q(int z) {
z += x; print(z);
}
void P(int *y) {
int x = *y+2;
Q(x); *y = x-1;
print(x);
}
main(void) {
x = 5;
P(&x);
print(x);
}
The output of this program is4
GATE CSE 2003
MCQ (Single Correct Answer)
+1
-0.3
The regular expression $${0^ * }\left( {{{10}^ * }} \right){}^ * $$denotes the same set as
Paper analysis
Total Questions
Algorithms
9
Compiler Design
9
Computer Networks
5
Computer Organization
2
Data Structures
4
Database Management System
5
Digital Logic
5
Discrete Mathematics
11
Operating Systems
8
Programming Languages
7
Theory of Computation
8
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