
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Run the following Binary Heap code in Netbeans and provide screenshots to prove that the code runs successfully:
public class BinaryHeap {
private static final int d= 2;
private int[] heap;
private int heapSize;
/**
* This will initialize our heap with default size.
*/
public BinaryHeap(int capacity){
heapSize = 0;
heap = new int[ capacity+1];
Arrays.fill(heap, -1);
}
/**
* This will check if the heap is empty or not
* Complexity: O(1)
*/
public boolean isEmpty(){
return heapSize==0;
}
/**
* This will check if the heap is full or not
* Complexity: O(1)
*/
public boolean isFull(){
return heapSize == heap.length;
}
private int parent(int i){
return (i-1)/d;
}
private int kthChild(int i,int k){
return d*i +k;
}
/**
* This will insert new element in to heap
* Complexity: O(log N)
* As worst case scenario, we need to traverse till the root
*/
public void insert(int x){
if(isFull())
throw new NoSuchElementException("Heap is full, No space to insert new element");
heap[heapSize++] = x;
heapifyUp(heapSize-1);
}
/**
* This will delete element at index x
* Complexity: O(log N)
*
*/
public int delete(int x){
if(isEmpty())
throw new NoSuchElementException("Heap is empty, No element to delete");
int key = heap[x];
heap[x] = heap[heapSize -1];
heapSize--;
heapifyDown(x);
return key;
}
/**
* This method used to maintain the heap property while inserting an element.
*
*/
private void heapifyUp(int i) {
int temp = heap[i];
while(i>0 && temp > heap[parent(i)]){
heap[i] = heap[parent(i)];
i = parent(i);
}
heap[i] = temp;
}
/**
* This method used to maintain the heap property while deleting an element.
*
*/
private void heapifyDown(int i){
int child;
int temp = heap[i];
while(kthChild(i, 1) < heapSize){
child = maxChild(i);
if(temp < heap[child]){ heap[i] = heap[child]; }else break; i = child; } heap[i] = temp; } private int maxChild(int i) { int leftChild = kthChild(i, 1); int rightChild = kthChild(i, 2); return heap[leftChild]>heap[rightChild]?leftChild:rightChild;
}
/**
* This method used to print all element of the heap
*
*/
public void printHeap()
{
System.out.print("nHeap = ");
for (int i = 0; i < heapSize; i++)
System.out.print(heap[i] +" ");
System.out.println();
}
/**
* This method returns the max element of the heap.
* complexity: O(1)
*/
public int findMax(){
if(isEmpty())
throw new NoSuchElementException("Heap is empty.");
return heap[0];
}
public static void main(String[] args){
BinaryHeap maxHeap = new BinaryHeap(10);
maxHeap.insert(10);
maxHeap.insert(4);
maxHeap.insert(9);
maxHeap.insert(1);
maxHeap.insert(7);
maxHeap.insert(5);
maxHeap.insert(3);
maxHeap.printHeap();
maxHeap.delete(5);
maxHeap.printHeap();
}
}
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 7 steps with 7 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Build a heap from the following array. Show the heap after ???????() occurred at each node. ? = [3, 5, 1, 6, 2, 0, 8, 11, 9] Perform 2 rounds of sorting (i.e., sort two largest numbers) using ????????() procedure. Show the heap and array after every round.arrow_forwardWrite the full Java code for NaturalMergeSorter.javaarrow_forwardchar ** doubleIt (char **arr, int *maxsize); The doubleIt function will increase the heap size by doubling the original space. The functions takes 2 arguments: 1. A double pointer of type char called arr. This is a 2D dynamic array that contains words (strings) from the respective category (noun, verb, adjective, preposition). This is the original heap. 2. A pointer of type int called maxsize. This pointer holds the address of an integer that keeps track of the maximum amount of strings the 2D dynamic array can store. When this function is invoked, the current size of the dynamic array is at capacity so the values should match. This value will need to be multiplied by 2. The function allocates a new heap that is twice the size of the original heap and copy the values from the original heap into the new heap. One important note about this is that you have to properly copy the values over in order to avoid segmentation fault. Think about how this can be avoided. That is part of the…arrow_forward
- javaarrow_forwardThis is Java programming! The current code for BstMaxHeap is printing names backwords. So please modify the code BstMaxHeap.java so it prints as the following: The heap is not empty; it contains 9 entries. The largest entry is Whitney Removing entries in descending order: Removing Whitney Removing Regis Removing Megan Removing Matt Removing Jim Removing Jared Removing Doug Removing Brittany Removing Brettarrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education

Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education

Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON

C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON

Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning

Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education