Which of the following statements is correct about the C#.NET code snippet given below?
class Sample
{
private int i;
public Single j;
private void DisplayData()
{
Console.WriteLine(i + " " + j);
}
public void ShowData()
{
Console.WriteLine(i + " " + j);
}
}
A -
DisplayData() cannot be declared as private.
B -
DisplayData() cannot access j.
C -
ShowData() cannot access to i.
D -
There is no error in this class.
2-
Which of the following statements are correct?
1/ Instance members of a class can be accessed only through an object of that class.
2/ A class can contain only instance data and instance member function.
3/ All objects created from a class will occupy equal number of bytes in memory.
4/ A class can contain Friend functions.
5/ A class is a blueprint or a template according to which objects are created.
A -
1, 3, 5
B -
2, 4
C -
3, 5
D -
2, 4, 5
3-
Which of the following statements is correct?
A -
Procedural Programming paradigm is different than structured programming paradigm.
B -
Object Oriented Programming paradigm stresses on dividing the logic into smaller parts and writing procedures for each part.
C -
Classes and objects are corner stones of structured programming paradigm.
D -
Object Oriented Programming paradigm gives equal importance to data and the procedures that work on the data.
4-
Which of the following is the correct way to create an object of the class Sample?
1/ Sample s = new Sample();
2/ Sample s;
3/ Sample s; s = new Sample();
4/ s = new Sample();
A -
1, 3
B -
2, 4
C -
1, 2, 3
D -
4, 5
5-
Which of the following will be the correct output for the C#.NET program given below?
namespace IndiabixConsoleApplication
{
class Sample
{
int i;
Single j;
public void SetData(int i, Single j)
{
i = i;
j = j;
}
public void Display()
{
Console.WriteLine(i + " " + j);
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Sample s1 = new Sample();
s1.SetData(10, 5.4f);
s1.Display();
}
}
}
A -
0 0
B -
10 5.4
C -
10 5.400000
D -
10 5
6-
Which of the following statements are correct?
1/ Data members ofa class are by default public.
2/ Data members of a class are by default private.
3/ Member functions ofa class are by default public.
4/ A private function of a class can access a public function within the same class.
5/ Member function of a class are by default private.
A -
1, 3, 5
B -
1, 4
C -
2, 4, 5
D -
1, 2, 3
7-
Which of the following statements is correct about the C#.NET code snippet given below?
namespace IndiabixConsoleApplication
{
class Sample
{
public int index;
public int[] arr = new int[10];
public void fun(int i, int val)
{
arr[i] = val;
}
}
class MyProgram
{
static void Main(string[] args)
{
Sample s = new Sample();
s.index = 20;
Sample.fun(1, 5);
s.fun(1, 5);
}
}
}
A -
s.index = 20 will report an error since index is public.
B -
The call s.fun(1, 5) will work correctly.
C -
Sample.fun(1, 5) will set a value 5 in arr[ 1 ].
D -
The call Sample.fun(1, 5) cannot work since fun() is not a shared function.
8-
Which of the following statements are correct about the C#.NET code snippet given below?
sample c;
c = new sample();
1/It will create an object called sample.
2/ It will create a nameless object of the type sample.
3/ It will create an object of the type sample on the stack.
4/ It will create a reference c on the stack and an object of the type sample on the heap.
5/ It will create an object of the type sample either on the heap or on the stack depending on the size of the object.
A -
1, 3
B -
2, 4
C -
3, 5
D -
4, 5
9-
Which of the following statements is correct about the C#.NET code snippet given below?
int i;
int j = new int();
i = 10;
j = 20;
String str;
str = i.ToString();
str = j.ToString();
A -
This is a perfectly workable code snippet.
B -
Since int is a primitive, we cannot use new with it.
C -
Since an int is a primitive, we cannot call the method ToString() using it.
D -
i will get created on stack, whereas j will get created on heap.
10-
Which of the following statements are correct about the this reference?
1/ This reference can be modified in the instance member function of a class.
2/ Static functions of a class never receive the this reference.
3/ Instance member functions of a class always receive a this reference.
4/ This reference continues to exist even after control returns from an instance member function.
5/ While calling an instance member function we are not required to pass the this reference explicitly.
