Page 633 - ComputerScience_Class_11

(ix) Assertion (A): 7 % - 4 = 3 [1]
Reasoning (R): The result should be -3 as the divisor has negative sign
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true, but R is NOT the correct explanation of A.
(c) A is true, R is false.
(d) A is false, R is true.
(x) Assertion (A): Method overloading is an example of compile-time polymorphism. [1]
Reason (R): The method call is resolved at runtime based on the object.
(a) Both A and R are true and R is correct explanation of A
(b) Both A and R are true, but R is not correct explanation
(c) A is true, R is false
(d) A is false, R is true
Question 2:
(i) Write the equivalent Java statement for the following expression. [2]
2
x + y 2
F =
2 xy
(ii) Define a String array ‘metro’ storing the following names: [2]
NEW DELHI, MUMBAI, KOLKATA, CHENNAI, HYDERABAD
(iii) The following function is a part of some class which computes and returns the value of a number ‘p’ raised to the power ‘q’
q
(p ).. There are some places in the code marked by ?1? , ?2? , ?3? which must be replaced by an expression/a statement so
that the function works correctly.
double power ( double p , int q )
{ double r = ?1? ;
int c = ( q<0 ) ? -q : q ;
if ( q == 0)
return 1 ;
else
{ for (int i = 1; i <= c , i++)
r=?2?;
return (q>0)? r : ?3?;
}
}
(a) What is the expression or statement at ?1? , ?2? and ?3? [3]
(iv) Predict the output for the following python code: [3]

for i in range(1, 5):
for j in range(i):
if j %2==0:
print(i*'*', end=" ")
else:
print(i*j,end=" ")
print()

Sample Paper 631