Database System Concepts
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
Bartleby Related Questions Icon
Related questions
bartleby
Concept explainers
Question
PLESE NO COPY PASTE
Answer the following : (3 Marks)
- Create an ArrayList , HashMap and HashSet
- Add 2 elements/entries to ArrayList , HashMap and HashSet .
ArrayList
HashMap
HashSet
Expert Solution
Check MarkThis question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
bartleby
This is a popular solution
bartleby
Trending nowThis is a popular solution!
bartleby
Step by stepSolved in 4 steps with 3 images
Knowledge Booster
Background pattern image
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
- Please help with the following: JAVA use simple arrays no hashcode try and keep it as simple as possible The problem is Java Intersection of Three Sorted Arrays use simple array to solve the following: // a1 {1,2,5,10}// a2{4,5,9}// a3 {1,5,7,9} the number 5 should be the one to show uparrow_forwardLab 19 Building a linked list Start this lab with the code listed below. The LinkedList class defines the rudiments of the code needed to build a linked list of Node objects. You will first complete the code for its addFirst method. This method is passed an object that is to be added to the beginning of the list. Write code that links the passed object to the list by completing the following tasks in order: 1. Create a new Node object. 2. Make the data variable in the new Node object reference the object that was passed to addFirst. 3. Make the next variable in the new Node object reference the object that is currently referenced in variable first. 4. Make variable first reference the new Node. Test your code by running the main method in the LinkedListRunner class below. Explain, step by step, why each of the above operations is necessary. Why are the string objects in the reverse order from the way they were added? public class LinkedList { private Node first; public LinkedList () {...arrow_forwardStrings all_colors and updated_value are read from input. Perform the following tasks: Split all_colors into tokens using a comma (',') as the separator and assign color_list with the result. Replace the first element in color_list with updated_value.arrow_forward
- It is python language Write the code that creates a new Node class. It will store data and next attributes. You only need to create the __init__ method. data and next variables will have default values, both set to None. Assume you are using the Node class from the previous connection to create a LinkedList. You have the code below, create a method that removes the first node from the LinkedList. class LinkedList: def __init__(self): self.head = None Based on the code from the last two questions, create a new LinkedList. Add 2 values to the LinkedList (there is an add method that accepts data as an argument, called add). Then call the removeFront method created in the previous question. Based on the previous questions, create a Queue class that uses the LinkedList for its data storage. Create the __init__, isEmpty, insert, remove, and size methods. Assume that LinkedList class has the add, removeFront and size methods defined. Based on the LinkedList code already...arrow_forward2 = 0 ) { numList [ i ] i } } } [1, 2, 3, 4, 5] [0, 2, 4, 6, 8] [2, 4, 6, 8, 10] [1, 3, 5, 7, 9]arrow_forwardJava - Given list: ( 4, 7, 18, 48, 49, 56, 66, 68, 79 )arrow_forward
- P__Given an empty ArrayList<Integer> numList, what are numList's contents after the following operations: numList.add(12);numList.add(14);numList.add(16);numList.set(1, 13);numList.add(0, 10);.arrow_forwardFIX THIS CODE Using python Application CODE: import csv playersList = [] with open('Players.csv') as f: rows = csv.DictReader(f) for r in rows: playersList.append(r) teamsList = [] with open('Teams.csv') as f: rows = csv.DictReader(f) for r in rows: teamsList.append(r) plays=len(playersList) for i in range(plays): if playersList[i]['team']=='Argentina' and int(playerlist[i]['minutes played'])<200 and int(playersList[i] ['shots'])>20: print(playersList[i]['last name']) c0=0 c1=0 c2=0 for i in range(len(teamsList)): if int(teamsList[i]['redCards'])==0: c0=c0+1 if int(teamsList[i]['redCards'])==1: c1=c1+1 if int(teamsList[i]['redCards'])==2: c2=c2+1 print("Number of teams with zero redcards:",c0) print("Number of teams with zero redcards:",c1) print("Number of teams with zero redcards:",c2) ratio=0 for i in range(len(teamsList)): if int(teamsList[i]['games']>3) and if int(teamsList[i]['goalsFor'])/int(teamsList[i]['goalsAgainst'])<ratio:...arrow_forwardJava coding Can you create a remove method that removes and returns an element from an index in an array? Thanks.arrow_forward
- 1. Goals and Overview The goal of this assignment is to practice creating a hash table. This assignment also has an alternative, described in Section 5. A hash table stores values into a table (meaning an array) at a position determined by a hash function. 2. Hash Function and Values Every Java object has a method int hashCode() which returns an int suitable for use in a hash table. Most classes use the hashCode method they inherit from object, but classes such as string define their own hashCode method, overriding the one in object. For this assignments, your hash table stores values of type public class HashKeyValue { K key; V value; } 3. Hash Table using Chained Hashing Create a hash table class (called HashTable211.java) satisfying the following interface: public interface HashInterface { void add(K key, V value); // always succeeds as long as there is enough memory V find (K key); // returns null if there is no such key } Internally, your hash table is defined as a private...arrow_forwardLab 19 Building a linked list Start this lab with the code listed below. The LinkedList class defines the rudiments of the code needed to build a linked list of Node objects. You will first complete the code for its addFirst method. This method is passed an object that is to be added to the beginning of the list. Write code that links the passed object to the list by completing the following tasks in order: 1. Create a new Node object. 2. Make the data variable in the new Node object reference the object that was passed to addELKEt, 3. Make the next variable in the new Node object reference the object that is currently referenced in variable first. 4, Make variable first reference the new Node. Test your code by running the main method in the LinkedLiatBunner class below. Explain, step by step, why each of the above operations is necessary. Why are the string objects in the reverse order from the way they were added? public class LinkedList private Node first; public LinkedList () {...arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Text book imageDatabase System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationText book imageStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONText book imageDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- Text book imageC How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONText book imageDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningText book imageProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education