Which of the following statements are correct about Inheritance in C#.NET?
1/ A derived class object contains all the base class data.
2/ Inheritance cannot suppress the base class functionality.
3/ A derived class may not be able to access all the base class data.
4/ Inheritance cannot extend the base class functionality.
5/ In inheritance chain construction of object happens from base towards derived.
A -
1, 2, 4
B -
2, 4, 5
C -
1, 3, 5
D -
2, 4
2-
Assume class B is inherited from class A. Which of the following statements is correct about construction of an object of class B?
A -
While creating the object firstly the constructor of class B will be called followed by constructor of class A.
B -
While creating the object firstly the constructor of class A will be called followed by constructor of class B.
C -
The constructor of only class B will be called.
D -
The constructor of only class A will be called.
3-
Which of the following statements is correct about the C#.NET program given below?
namespace IndiabixConsoleApplication
{
class Baseclass
{
int i;
public Baseclass(int ii)
{
i = ii;
Console.Write("Base ");
}
}
class Derived : Baseclass
{
public Derived(int ii) : base(ii)
{
Console.Write("Derived ");
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Derived d = new Derived(10);
}
}
}
A -
The program will output: Derived Base
B -
The program will report an error in the statement base(ii).
C -
The program will work correctly if we replace base(ii) with base.Baseclass(ii).
D -
The program will output: Base Derived
4-
Which of the following statements are correct about the C#.NET code snippet given below?
int[ , ] intMyArr = {{7, 1, 3}, {2, 9, 6}};
1/ intMyArr represents rectangular array of 2 rows and 3 columns.
2/ intMyArr.GetUpperBound(1) will yield 2.
3/ intMyArr.Length will yield 24.
4/ intMyArr represents 1-D array of 5 integers.
5/ intMyArr.GetUpperBound(0) will yield 2.
A -
1, 2
B -
2, 3
C -
2, 5
D -
1, 4
5-
Which of the following statements are correct about the C#.NET code snippet given below?
int[] a = {11, 3, 5, 9, 4};
The array elements are created on the stack.
Refernce a is created on the stack.
The array elements are created on the heap.
On declaring the array a new array class is created which is derived from System.Array Class.
Whether the array elements are stored in the stack or heap depends upon the size of the array.
A -
1, 2
B -
2, 3, 4
C -
2, 3, 5
D -
4, 5
6-
Which one of the following statements is correct?
A -
Array elements can be of integer type only.
B -
The rank of an Array is the total number of elements it can contain.
C -
The length of an Array is the number of dimensions in the Array.
D -
The default value of numeric array elements is zero.
7-
If a is an array of 5 integers then which of the following is the correct way to increase its size to 10 elements?
A -
int[] a = new int[5]; int[] a = new int[10];
B -
int[] a = int[5]; int[] a = int[10];
C -
int[] a = new int[5]; a = new int[10];
D -
int[] a = new int[5]; a.GetUpperBound(10);
8-
How will you complete the foreach loop in the C#.NET code snippet given below such that it correctly prints all elements of the array a?
int[][]a = new int[2][];
a[0] = new int[4]{6, 1 ,4, 3};
a[1] = new int[3]{9, 2, 7};
foreach (int[ ] i in a)
{
/* Add loop here */
Console.Write(j + " ");
Console.WriteLine();
}
A -
foreach (int j = 1; j < a(0).GetUpperBound; j++)
B -
foreach (int j = 1; j < a.GetUpperBound (0); j++)
C -
foreach (int j in a.Length)
D -
foreach (int j in i)
9-
Which of the following is the correct output of the C#.NET code snippet given below?
int[ , , ] a = new int[ 3, 2, 3 ];
Console.WriteLine(a.Length);
A -
20
B -
4
C -
18
D -
10
10-
Which of the following statements are correct about arrays used in C#.NET?
Arrays can be rectangular or jagged.
Rectangular arrays have similar rows stored in adjacent memory locations.
Jagged arrays do not have an access to the methods of System.Array Class.
Rectangular arrays do not have an access to the methods of System.Array Class.
Jagged arrays have dissimilar rows stored in non-adjacent memory locations.
