What is the size of aset after the following Java code is executed
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Hello, can anyone help me with this problem. i want to run and compile this code, thank you.
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- Here is my code in Java: import java.util.Scanner; import java.util.HashMap; public class Inventory { /** This class demonstrates the inventory */ //Declarations Of inventory static final int LightBulb60W = 1; static final int LightBulb100W = 2; static final int BoltM5 = 3; static final int BoltM8 = 4; static final int Hose25 = 5; static final int Hose50 = 6; public static void main (String [] args) { //Scanner Object @SuppressWarnings("resource") Scanner keyboard = new Scanner(System.in); //Variables int month; int day; int year; double units; double cost = 0; //Declarations int total; HashMap<Integer, String> productMap = new HashMap<>(); productMap.put(1,"Light Bulb 60W"); productMap.put(2,"Light Bulb 100W"); productMap.put(3,"Bolt M5"); productMap.put(4,"Bolt M8"); productMap.put(5,"Hose 25 feet"); productMap.put(6,"Hose 50 feet 60W"); while(true){ //Prints out inventory System.out.println("The Inventory: "); System.out.println("1…In this problem you are given a Set of data and an element. You will need to look to see if the set contains the element. If found return the element otherwise return "?". "Note sometimes the names of classes/variables/objects can be misleading!!!!" import java.util.HashSet;public class SetContainsLetter{public static Object solution(HashSet<Integer> nums, int elm){// ↓↓↓↓ your code goes here ↓↓↓↓return null;}}import java.util.ArrayList; /** * This class describes a user of Twitter. A user has a user ID * (e.g. @testudo), a list of tweets, a count of the number of followers, * and a list of users that this user follows. Unlike P5, * there is no upper limit on the number of tweets or users to follow. * * You may NOT import any library class other than java.util.ArrayList. * You may NOT add any instance variables to keep a count of the number * of tweets or users being followed. You may add instance variables * for other purposes as long as they are private. */public class TwitterUser { private String userID; private int followers; private ArrayList<Tweet> listTweets; private ArrayList<TwitterUser> toFollow; /** * A constructor that takes the user's ID. If the ID is null, or * longer than 32 characters, or it does not start with "@", * throw an IllegalArgumentException. * * All other instance variables should be initialized…
- (Java) Q3 Explain the answer step-by-step . Include verbal explanation. Thank you! The below class pertains to questions 3: public class Address { private int number; private String street;}3. Add the following methods to the Address class: a. a toString method b. two mutator methods - setNumber and setStreet c. two accessor methods - getNumber and getStreetWrite a class called Pokemon that has a name (e.g. “Pikachu”) and a number (e.g. 25). Implement a constructor that takes both values as parameters. Implement accessors for both values. Implement a toString() that returns a string in the format “Name(number)”, e.g. “Pikachu(25)”. Implement an equals(Object) method (two Pokémon are considered equal if they have the same number). Implement a hashCode() method that returns the number.(remember the equals and hashCode contract).JAVA Create a new class HashMapManipulation with a main method. Import the necessary classes from the java.util package, including the HashMap class. Create a HashMap object, named mapand use the put() method to add key-value pairs to the map. The keys are strings "A", "B", and "C", and the values are integers 1, 2, and 3 respectively. Use the size() method to print the size of the map. Use a for loop to print the key-value pairs in the map. The loop should iterate over the entries in the map using the entrySet() method, which will return a set of Map.Entry objects representing the key-value pairs in the map. The key and value of each entry are printed using the getKey() and getValue() methods, respectively. Use theget() method to get the value of key "A", and assigns it to a variable value. The value is then printed. Use the put() method to add a new key-value pair to the map. The key is "D" and the value is 4. The map is then printed again, to show the added key-value…
- Complete the Kennel class by implementing the following methods: addDog(Dog dog) findYoungestDog() method, which returns the Dog object with the lowest age in the kennel. Assume that no two dogs have the same age. Given classes: Class LabProgram contains the main method for testing the program. Class Kennel represents a kennel, which contains an array of Dog objects as a dog list. (Type your code in here.) Class Dog represents a dog, which has three fields: name, breed, and age. (Hint: getAge() returns a dog's age.) For testing purposes, different dog values will be used. Ex. For the following dogs: Rex Labrador 3.5 Fido Healer 2.0 Snoopy Beagle 3.2 Benji Spaniel 3.9 the output is: Youngest Dog: Fido (Healer) (Age: 2.0)IN JAVA. Any help is appreciated! Thank you! PART 1 : Automobiles Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances. Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.import java.util.HashSet; import java.util.Set; // Define a class named LinearSearchSet public class LinearSearchSet { // Define a method named linearSearch that takes in a Set and an integer target // as parameters public static boolean linearSearch(Set<Integer> set, int target) { // Iterate over all elements in the Set for () { // Check if the current value is equal to the target if () { // If so, return true } } // If the target was not found, return false } // Define the main method public static void main(String[] args) { // Create a HashSet of integers and populate integer values Set<Integer> numbers = new HashSet<>(); // Define the target to search for numbers.add(3); numbers.add(6); numbers.add(2); numbers.add(9); numbers.add(11); // Call the linearSearch method with the set…
- Java 2 billBook -invoiceNumber: String-visitDate: String-patientName: String-paid: boolean -bills: bill[]-doctor: String +bill(all parameters)+Setters/getters methods(ifneeded)+printInvoice(): void +billBook(doctor:String,capacity:int)+Setters/getters methods (if needed)+addBills(): void+payBill(invoiceNumber: String): int Implement the class bill:a. Write the constructor that takes as parameters all data fields except the paid value. Abill object is by defauld not paid.b. The printInvoice() method should output the following information: The invoiceNumber, the visitDate, the name of the patient name A message “The bill is paid” or “The bill is not paid” according to the value of the field paid.2. Implement the class billBook using the above UML:a. Write the constructor that takes as parameters the name of the doctor who hasexamined the patient and the capacity which represents the size of the array bills.b. Write the method addBills that reads the information of bill objects from…6.20 LAB: Fibonacci sequence Java? The Fibonacci sequence begins with 0 and then 1 follows. All subsequent values are the sum of the previous two, for example: 0, 1, 1, 2, 3, 5, 8, 13. Complete the fibonacci() method, which has an index, n, as parameter and returns the nth value in the sequence. Any negative index values should return -1.Assume we have Dessert.java whcih private String flavor has private double sweetness in it. Store.java This will be the class that stores the data for the dessert store. We are assuming that a store can sell all kinds of dessert. Variables: String name – name of the store. ArrayList desserts – an ArrayList of type Dessert Constructor(s): • A constructor that only takes in name and creates an empty ArrayList of type Dessert. Methods: • addDesserto This method should take in a valid Dessert object and add it to the back of the ArrayList. o This method should not return anything.o This method should run in O(1) time. • removeDesserto This method should take in a valid Dessert object and remove the first instance of it from the ArrayList. o Return the object that is being removed or null if the dessert is not found. o Use equals when identifying if the object in the ArrayList is the same as the passed in Dessert object. o This method should run in O(n) time. • findDessert o…