Make the following class generic so that it can deal with an arbitrary class rather than only Dog instances public class BunchOfStuff { private ArrayList group = new ArrayList<>); public Dog get() { return group.remove(0); } public void insert(Dog value) { group.add(value); } }
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- create a class called Dwarf that has a name (String) and a height (int). In addition, when Dwarfs are placed in a LinkedList and sorted, they will be sorted from tallest to shortest. import java.util.*; public class Main{ public static void main(String[] args) { ArrayList<Dwarf> l = new ArrayList<Dwarf>(); l.add(new Dwarf("Sleepy", 14)); l.add(new Dwarf("Dopey", 17)); l.add(new Dwarf("Doc", 9)); l.add(new Dwarf("Happy", 22)); l.add(new Dwarf("Sneezy", 29)); l.add(new Dwarf("Bashful", 11)); l.add(new Dwarf("Grumpy", 4)); Collections.sort(l); for (Dwarf d : l) System.out.println(d.getName()); }} output Sneezy Happy Dopey Sleepy Bashful Doc GrumpyPlease Use java only. Inthisassignment,youwillimplementaclasscalledCustomIntegerArrayList. Thisclass represents a fancy ArrayList that stores integers and supports additional operations not included in Java's built-in ArrayList methods. For example, the CustomIntegerArrayList class has a “splice” method which removes a specified number of elements from the CustomIntegerArrayList, starting at a given index. For a CustomIntegerArrayList that includes: 1, 2, 3, 4, and 5, calling splice(1, 2) will remove 2 items starting at index 1. This will remove 2 and 3 (the 2nd and 3rd items). The Cu stomIntegerArrayList class has 2 different (overloaded) constructors. (Remember, an overloaded constructor is a constructor that has the same name, but a different number, type, or sequence of parameters, as another constructor in the class.) Having 2 different constructors means you can create an instance of the CustomIntegerArrayList class in 2 different ways, depending on which constructor you…Write a Java method that will take in a generic ArrayList with Doubles (reference type). Have the method take each Double and convert it to an Integer and store it into another generic ArrayList that holds Integers. When done, return the new Integer ArrayList.
- Consider the following class PrimeNumbers, which has three methods. The first, computePrimes() takes one integer input and calculates that many prime numbers. Iterator() returns an Iterator object that will iterate through the primes, and toString() returns a string representation. public class PrimeNumbers implements Iterable<Integer> { private List<Integer> primes = new ArrayList<Integer>(); public void computePrimes (int n) { int count = 1; // count of primes int number = 2; // number tested for primeness boolean isPrime; // is this number a prime while (count <= n) { isPrime = true; for (int divisor = 2; divisor <= number / 2; divisor++) { if (number % divisor == 0) { isPrime = false; break; // for loop } } if (isPrime && (number % 10 != 9)) // FAULT { primes.add (number); count++; } number++; } } @Override public Iterator<Integer> iterator() { return primes.iterator(); } 2 @Override public String toString() { return primes.toString();…Implement unique method that takes an ArrayList as input and returns an ArrayList withexactly a single occurrence of each element from the input list. For example, if the input listcontains 5, 6, 7, 6, 3, 5, 5, 4 then the output list should have 5, 6, 7, 3, 4.Note: (1) You may assume that the ArrayList has a specific type of elements in it. In the class, we assumedit to have String type values. (2) You may only work with ArrayList(s).You are familiar with ArrayList and have used it in different capacities. The most prominent feature of ArrayList is that it expands automatically as elements are added to it. It can be traversed using a for loop, for each loop and iterator( which you have implemented in Lab 2).In this lab you are going to implement your own ArrayList and its functionalities.Task 1.1: Create a class Generic ArrayList with attributes.Task 1.2: Implement a constructor for your ArrayList class.Task 1.3: Implement add() method for adding elements to ArrayList. Remember, ArrayList adds elements dynamically. It doesn't depend on user defined size.Task 1.4: Implement remove() method for removing an element from a specific index. Remember, ArrayList stores elements in a consecutive sequence. If an element is removed from middle you have to re-adjust the elements in the correct sequence. Note: Break down your implementation by defining helper methods for different tasks, rather than implementing your logic in a…
- Java 1. Implement ArrayUnorderedList<T> class which will extend ArrayList<T> by defining the following additional methods(i) public void addToFront(T element); //Adds the specified element to the front of the list.(ii) public void addToRear(T element); //Adds the specified element to the rear of the list.(iii) public void addAfter(T element, T target); //Adds the specified element after the specified target element.a. Create an object of ArrayUnorderedList<T> class and perform some add, remove, and search operations and finally print the entire Stack.Import the ArrayList and List classes from the java.util package to create a list of phone numbers and also import the HashSet and Set classes from the java.util package to create a set of unique prefixes. Create a class called PhoneNumberPrefix with a main method that will contain the code to find the unique prefixes. Create a List called phoneNumbers and use the add method to add several phone numbers to the list. List<String> phoneNumbers = new ArrayList<>(); phoneNumbers.add("555-555-1234"); phoneNumbers.add("555-555-2345"); phoneNumbers.add("555-555-3456"); phoneNumbers.add("444-444-1234"); phoneNumbers.add("333-333-1234"); Create a Set called prefixes and use a for-each loop to iterate over the phoneNumbers list. For each phone number, we use the substring method to extract the first 7 characters, which represent the prefix, and add it to the prefixes set using the add method. Finally, use the println method to print the prefixes set, which will contain all of…Write the following two generic methods using bubblesort. The first method sorts the elements using the Comparable interface, andthe second uses the Comparator interface.public static <E extends Comparable<E>>void bubbleSort(E[] list)public static <E> void bubbleSort(E[] list,Comparator<? super E> comparator)
- Write the following two generic methods using quick sort.The first method sorts the elements using the Comparable interface, and thesecond uses the Comparator interface.public static <E extends Comparable<E>>void quickSort(E[] list)public static <E> void quickSort(E[] list,Comparator<? super E> comparator)Add unit testing to the textanalyzer class. Please perform this task using JUnit. import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.io.*; public class TextAnalyzer { public static void main(String[] args) throws Exception { String Word; URL poem = new URL("https://www.gutenberg.org/files/1065/1065-h/1065-h.htm"); BufferedReader in = new BufferedReader( new InputStreamReader(poem.openStream())); Map map = new HashMap(); while ((Word = in.readLine()) != null) { String[] words = Word.split("[\\s.;,?:!()\"]+"); for (String word : words) { word = word.trim(); if (word.length() > 0) { if (map.containsKey(word)) { map.put(word, map.get(word) + 1); } else { map.put(word, (int) 1L); } } } } // retrieving the map contents Set> set = map.entrySet(); // make an array list List> sortedList = new…The implementation of a queue in an array, as given in this chapter, uses the variable count to determine whether the queue is empty or full. You can also use the variable count to return the number of elements in the queue. On the other hand, class linkedQueueType does not use such a variable to keep track of the number of elements in the queue. Redefine the class linkedQueueType by adding the variable count to keep track of the number of elements in the queue. Modify the definitions of the functions addQueue and deleteQueue as necessary. Add the function queueCount to return the number of elements in the queue. Also, write a program to test various operations of the class you defined.