Cpp Programming Quiz 176 – Which of the following statement is correct?

Question: Which of the following statement is correct about the program given below?

#include
const double BixConstant(const int, const int = 0);
int main()
{
const int c = 2 ;
cout<< BixConstant(c, 10)<< " "; cout<< BixConstant(c, 20)<< endl; return 0; } const double BixConstant(const int x, const int y) { return( (y + (y * x) * x % y) * 0.2); }

[A].The program will print the output 2 4.
[B].The program will print the output 20 40.
[C].The program will print the output 10 20.
[D].The program will print the output 20 4.50.

Answer: Option A

[A]. The default value for an argument can be a global constant.
[B]. The default arguments are given in the function prototype.[C]. Compiler uses the prototype information to build a call, not the function definition.
[D]. The default arguments are given in the function prototype and should be repeated in the function definition.

Answer: Option D

Question: Which of the following statement is correct about the program given below?

#include
class BixArray
{
int array[3][3];
public:
BixArray(int arr[3][3] = NULL)
{
if(arr != NULL)
for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) array[i][j] = i+j; } void Display(void) { for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) cout<< array[i][j] << " "; } }; int main() { BixArray objBA; objBA.Display(); return 0; }

[A].The program will report error on compilation.
[B].The program will display 9 garbage values.
[C].The program will display NULL 9 times.
[D].The program will display 0 1 2 1 2 3 2 3 4.

Answer: Option B