Parameter-Passing
Question 1 |
What is printed by the print statements in the program P1 assuming call by reference parameter passing?
Program P1()
{
x = 10;
y = 3;
func1(y,x,x);
print x;
print y;
}
func1(x,y,z)
{
y = y+4;
z = x+y+z;
} 10, 3 | |
31, 3 | |
27, 7 | |
None of the above |
Question 1 Explanation:
Here, variable x of func1 points to address of variable y.
And variable y and z of func1 points to address of variable x.
Therefore, y = y+4 ⇒ y = 10+4 = 14
and z = x+y+z ⇒ z = 14+14+3 = 31
z will be stored back in k.
Hence, x=31 and y will remain as it is (y=3).
Hence, answer is (B).
And variable y and z of func1 points to address of variable x.
Therefore, y = y+4 ⇒ y = 10+4 = 14
and z = x+y+z ⇒ z = 14+14+3 = 31
z will be stored back in k.
Hence, x=31 and y will remain as it is (y=3).
Hence, answer is (B).
There is 1 question to complete.