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An n

Rectangular matrix

Uniform matrix

Ragged matrix

Square matrix

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Two-dimensional arrays are useful when the elements being processed are to be arranged in the form of______.

Rows

Columns

Both (a) and (b)

None of the above

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What is a sorted array?

Arrays sorted in numerical order

Arrays sorted in alphabetical order

Elements of the array are placed at equally spaced addresses in the memory

All of the mentioned

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When do you use a sparse array?

When there are unique elements in the array

When the array has more occurrence of zero elements

When the data type of elements differ

In all of the mentioned cases

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What is a dynamic array?

A variable size data structure

An array which is created at runtime

The memory to the array is allocated at runtime

An array which is reallocated everytime whenever new elements have to be added

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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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Data Structure Basics

Abstract data types

Arrays

Lists

Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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