Malware files are often identified by hash values to uniquely identify the files. Given a dictionary called malware that is an instance of the class Dictionary and implements DictionaryInterface with key-value pairs of type String for the filename and MDHash objects for the search key, write a Java statement that adds a malware name that is the string "Trojan Dropper" that has an MDHash search-key "55ad340609f4b30". malware.insert("TrojanDropper", "55ad340609f4b30"); malware.insert("55ad340609f4b30", "Trojan Dropper"); malware.add("Trojan Dropper", "55ad340609f4b30"); malware.add("55ad340609f4b30", "TrojanDropper");

Malware files are often identified by hash values to uniquely identify the files. Given a dictionary called malware that is an instance of the class Dictionary and implements DictionaryInterface with key-value pairs of type String for the filename and MDHash objects for the search key, write a Java statement that adds a malware name that is the string "Trojan Dropper" that has an MDHash search-key "55ad340609f4b30". malware.insert("TrojanDropper", "55ad340609f4b30"); malware.insert("55ad340609f4b30", "Trojan Dropper"); malware.add("Trojan Dropper", "55ad340609f4b30"); malware.add("55ad340609f4b30", "TrojanDropper");

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Design a class that acquires the JSON string from question #1 and converts it to a class data member dictionary. Your class produces data sorted by key or value but not both. Provide searching by key capabilities to your class. Provide string functionality to convert the dictionary back into a JSON string. question #1: import requestsfrom bs4 import BeautifulSoupimport json class WebScraping: def __init__(self,url): self.url = url self.response = requests.get(self.url) self.soup = BeautifulSoup(self.response.text, 'html.parser') def extract_data(self): data = [] lines = self.response.text.splitlines()[57:] # Skip the first 57 lines for line in lines: if line.startswith('#'): # Skip comment lines continue values = line.split() row = { 'year': int(values[0]), 'month': int(values[1]), 'decimal_date': float(values[2]),…
Write a class FileConverter with a constructor that accepts a String file name as its argument. It should store filename as its attribute (with a accessor getFilename(). The class should have the following methods: • createUpperCaseFile(): Accepts a String parameter targetFilename. It will open up both the file specified in class attribute filename and the method parameter targetFilename. Then it will convert all lines of the class attribute filename to upper case and write it to target file, line by line. • createRowCharCountFile(): Accepts a String parameter targetFilename. It will open up both the file specified in class attribute filename and the method parameter targetFilename. Then it will count the number of chars in each line of the class attribute filename and write it to target file line by line. The class must come with a main() method, which will create an object instance and generate two target files based on the source file, one all upper case, and another row char count.
Challenge 3: Encryption.java and Decryption.java Write an Encryption class that encrypts the contents of a binary file. Your encryption program should work like a filter, reading the contents of one file, modifying the data into a code, and then writing the coded content out to a second file. The second file will be a version of the first file, but written in a secret code. Use a simple encryption technique, such as reading one character at a time, and add 10 to the character code of each character before it is written to the second file. Come up with your own encryption method. Also write a Decryption class that reads the file produced by the Encryption program. The decryption file will use the method that you used and restore the data to its original state, and write it to a new file.
Computer Science Write a program in the Java language that includes: 1. A class for books, taking into account the encapsulation and getter, setter. 2. Entering books by the user using Scanner 3. LinkedList class for: (Adding a new book - Inserting a book- Searching for a book using the ISBN Number - Viewing all books,delete book). 4. Serial number increases automatically with each book that is entered. 5. Printing the names of books is as follows: Serial - ISBN - Name - PubYear - Price - Notes. 6-Design a main menu that includes: • Add Book • Insert Book • Delete Book • Search . Display . Exit
JAVA Problem – CycleFileInput Revisit the Cycle class . Modify your application such that the properties will be read from a text file called “Cycle.txt”. Directions Examine your application for the class called Cycle. Add an appropriate throws statement in the main method. Create a reference to a File class with the appropriate name of a text file (Cycle.txt). Note: Cycle.txt was created in the previous assignment, CycleFileOutput. In your code, check that the text file does exist. Input the values from the file to memory. Close the file. public class Cycle { // Declear integer instance variable private int numberOfWheels; private int weight; // Constructer declear class public Cycle(int numberOfWheels, int weight ) { this.numberOfWheels = numberOfWheels; this.weight = weight; } // String method for output public String toString() { String wheel = String.valueOf(this.numberOfWheels); String load = String.valueOf(this.weight); return("No of wheels in cycle = " +…
JAVA Create a class Book with the following attributesBooKname, BookPublisher, BookYearofPublished5.1 Now create the collection of book objects using treeset and do the followingoperations• Sort by bookname• Reverse sort by bookyearofpublished5.2 Now create the collection of book objects using LinkedHashSet and do thefollowing operation• sort by bookpublisher
Java - Encapsulation Create a class Point with attributes x and y which are both integers. Create getters and setters for these attributes and implement the following methods: 1. calculateDistance() - calculates the distance from the origin to the point. Returns a double, formula is sqrt(x^2 + y^2) 2. printCoordinates() - prints "(x,y)" Ask for user inputs for x and y. Use the methods printCoordinates() and calculateDistance() respectively. Inputs 1. X 2. Y Sample Output Enter x: 20 Enter y: 15 (20,15) 25.00
Consider that a database is hosted online with the following URL: https://csci410androidstudio2022.000webhostapp.com/getSportTypes.php It returns a JSON array which contains many JSON objects. Each object contains: id and name. These fields are case sensitive so remember to type them correctly. It will return something as follows: {"id":1,"name":"Soccer"}, {"id":2,"name":"Basketball"} Fill in the spinner entries using the URL already mentioned. A- When user press on 'Add new team' Button, a new activity should appear as follow: rox NoxPlayer 70.16 OX« 8:51 A My Application Team name Number of players Soccer Basketbal ADD TEAM The layout created previously contains a Spinner to choose a sport type, and two EditTexts first one has the following hint 'Team Name' and the second 'Number of players' and a Button called 'Add Team'. When the user press on this button, a new record is saved.
Develop a program that will do the following using Java and Javaclasses of Filewriter and Arraylist: The program has the interface[A] Add[D] Delete[U] Update[S] Search[X] Exit Select Operation: A You are about to add a user. Enter the First name:Enter the Last name:Enter the username:Enter password: The user has been successfully added. Do you wish to do another operation? [Y/N]: Y ---------------------------------------------------------------------------------------------- [A] Add[U] Update[S] Search[D] Delete[X] Exit Select Operation: U You are about to update user information. Search ID: 3 User information:First name: GeraldLast name: MorenoUsername: igeraldPassword: egerald Enter new username: asxsEnter new password: erdasdfr Username and Password have been updated successfully. Do you wish to do another operation? [Y/N]: Y ---------------------------------------------------------------------------------------------------------- [A] Add[U] Update[S] Search[D] Delete[X] Exit Select…
Language - Java Create a utility class called DuplicateCounter. Create an instance method called count that takes a single parameter called dataFile (representing the path to a text file) and uses a Map of Strings to count how many times each word occurs in dataFile. The counts should be stored in an instance variable called wordCounter. Create an instance method called write that takes a single parameter called outputFile (representing the path to a text file) and writes the contents of wordCounter to the file pointed to by outputFile. The output file should be overwritten if it already exists, and created if it does not exist. Create a separate class called Application that contains a main method which illustrates the use of DuplicateCounter by calling both the remove and write methods. Your input file must be called problem2.txt and your output file must be called unique_word_counts.tx
Define a class named Element with the following private data fields: String name; // The name of the chemical element int atomicNumber; // The atomic number of the element double atomicWeight; // The atomic weight of the element Override the toString() and equals() methods for the class with methods you design. Define a Java HashMap named elements that uses the String value of a chemical symbol as the key and an instance of the Element class as the value. For example, the chemical symbol for Carbon is the letter “C”. The atomic number of Carbon is 6, and the atomic weight of Carbon is 12.011. To add Carbon to the HashMap named elements, first create an instance of the Element class using “Carbon”, 6, and 12.011. Then add an entry to the HashMap collection using “C” as the key and the Element object as the value. Write a menu-driven program that prompts your user with the following six choices: Select an option number from the following menu: Option Action ------…
Exercise 2. Create a Book class where: Each book contains the following information: book title book Author name, barcode (as fong integers), and book topic. o Implement an appropriate constructor(s) and all necessary get/set methods. Test Book class: o Create diffcrent book objects (at least 5 hooks) and store them in a LinkedList sorted by book barcode value Generate a unique random integer value for the barcode. Iterate through the LinkedList and print out the books' details O Create a second LinkedList object containing a copy of the above LinkedList, but in reverse order.