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MCQ

What is the output of the following piece of code?

public class array
{
 public static void main(String args[])
 {
  int []arr = {1,2,3,4,5};
  System.out.println(arr[5]);
 }
}

ArrayIndexOutOfBoundsException

InavlidInputException

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MCQ

What is the output of the following piece of code?

public class array
{
 public static void main(String args[])
 {
  int []arr = {1,2,3,4,5};
  System.out.println(arr[2]);
  System.out.println(arr[4]);
 }
}

3 and 5

5 and 3

2 and 4

4 and 2

Discussion

MCQ

Once an array is declared and initialized, various operations, such as,___________can be performed on the array.

Traversing and searching

Insertion and deletion

Sorting and merging

All of the above

Discussion

MCQ

Sparse matrices have

higher dimension

many zero entries

many non-zero entries

none of the above

Discussion

MCQ

Each element in an array is associated with a unique subscript value, starting from__________.

1 to size-1

0 to size-1

-1 to size-0

None of the above

Discussion

MCQ

What is a bit array?

Data structure for representing arrays of records

Data structure that compactly stores bits

An array in which most of the elements have the same value

None of the mentioned

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Hash based structures

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Mixed

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