Heap Sort in Java

What is the process of 'heapifying' in Heap Sort?

• Arranging elements in a heap data structure

• Sorting elements in reverse order

• Removing elements from the heap

• Randomly shuffling the elements

What is the primary operation in the construction of a max heap in Java?

• Insertion

• Deletion

• Heapify

• Traversal

Explain the implementation of a Heap Sort algorithm in Java.

• Using a Stack to implement the heap and then by sorting the elements

• Using a HashMap to implement the heap and then sorting the elements

• Using the heap data structure and sorting logic.

• Using a LinkedList to implement the heap and then by sorting the elements

What is the time complexity of Heap Sort in Java?

• O(1)

• O(n)

• O(n log n)

• O(n^2)

What is the space complexity of Heap Sort in Java?

• O(n)

• O(log n)

• O(1)

• O(n^2)

What is the purpose of the heapifying process in Heap Sort?

• To maintain the heap property by arranging the elements in the correct order.

• To sort the elements in ascending order

• To randomize the order of elements

• To remove all the elements from the heap

What is the primary use of heapify operation in Java?

• To sort an array

• To search an element in an array

• To insert an element in an array

• To delete an element from an array

Explain the steps to build a max heap in Java.

• Use the quicksort algorithm

• Use the bubble sort algorithm

• Start from the first element and compare with its children

• Use the heapify process starting from the last non-leaf node

What are the advantages of using Heap Sort in Java?

• It is a slow sorting algorithm and has a time complexity of O(n!)

• It is not suitable for large datasets and has a high memory usage.

• It has a time complexity of O(n log n) and is an in-place sorting algorithm.

• It has a time complexity of O(n^2) and requires extra space for sorting.

What are the disadvantages of using Heap Sort in Java?

• It requires extra space.

• It is not suitable for small datasets.

• It is not stable.

• It has slower average case performance.