Java Code: How to implement logic for ParseIf and ParseSelf where all of the Node data structure correct, parses correctly, throws exceptions with good error messages. I don't need comments, I need the code. Make sure to write block of codes for these two methods.

Java Code: Below are the methods for parser.java. Make sure to use the existing Parser.java file to add in all the methods and show the output.    OperationNode: Has enum, left and Optional right members, good constructors and ToString is good  VariableReferenceNode: Has name and Optional index, good constructors and ToString is good  Constant & Node Pattern: Have name, good constructor and ToString is good  ParseLValue - variables: Accepts a variable name and creates an appropriate Variable Reference Node ParseLValue - arrays: Accepts a name, appropriately gets an index and creates an appropriate Variable Reference Node  ParseLValue - dollar: Creates an operation node, gets the value of the $ operator appropriately  ParseBottomLevel – constants & patterns: Detects strings, numbers and patterns and creates appropriate nodes  ParseBottomLevel – parenthesis: Creates an operation node AND gets the contents of the parenthesis appropriately  ParseBottomLevel – unary operators: All…

Hello, I request for help with the attached problems. Thanks a lot !

The implementations of the methods addAll, removeAll, retainAll, retainAll, containsAll(), and toArray(T[]) are omitted in the MyList interface. Implement these methods.   Use the template at https://liveexample.pearsoncmg.com/test/Exercise24_01_13e.txt to implement these methods this the code i have for the write your own code part  import java.util.Iterator; interface MyList<E> extends java.util.Collection<E> {    void add(int index, E e);    boolean contains(Object e);    E get(int index);    int indexOf(Object e);    int lastIndexOf(E e);    E remove(int index);    E set(int index, E e);    void clear();    boolean isEmpty();    Iterator<E> iterator();    boolean containsAll(java.util.Collection<?> c);    boolean addAll(java.util.Collection<? extends E> c);    boolean removeAll(java.util.Collection<?> c);    boolean retainAll(java.util.Collection<?> c);    Object[] toArray();    <T> T[] toArray(T[] a);    int size();} and its…

Hi, I am not sure what's wrong with my code. Can you please check why it is giving me an error?   In the starter file is a partial implementation of a doubly-linked list in DoublyLinkedList.java. We will write three new methods in this class to provide additional functionality. Write a method addFirst that adds a new element at the beginning of a DoublyLinkedList. Write a method addLast that adds a new element at the end of a DoublyLinkedList. Write a method removeFirst that removes and returns the first element of a DoublyLinkedList. Try to keep your implementations as simple as possible. For example, recall this definition of addFirst in the (Singly) LinkedList class: public void addFirst(E value) { head = new Node(value, head); } In the DoublyLinkedList class, you will need to keep the three instance variables head, tail, and count updated in all methods. Note that addFirst and addLast will be symmetric to each other, as will removeFirst and removeLast (provided in the…

In this project, you will implement a Set class that represents a general collection of values. For this assignment,  a  set is generally defined as a  list of values that are sorted and does not contain any duplicate values.    More specifically,  a  set shall contain no pair of elements  e1  and  e2  such that e1.equals(e2) and no null elements. (in java)Requirements  among  all  implementations  there  are  some  requirements  that  all  implementations must maintain. • Your implementation should always reflect the definition of a set. • For simplicity, your set will be used to store Integer objects. • An ArrayList<Integer> object must be used to represent the set. • All methods that have an object parameter must be able to handle an input of null. • Methods such as Collections. the sort that automatically sorts a list may not be used. Instead, when a  successful addition of an element to the  Set is done,  you can ensure that the elements inside the ArrayList<Integer>…

Hi, I am a bit lost on how to do this coding assignment. It would be great if someone could help me fill in the MyStack.java file with the given information. All the information is in the pictures. Thank you!

in Java

4. Say we wanted to get an iterator for an ArrayList and use it to loop over all items and print them to the console. What would the code look like for this? 5. Write a method signature for a method called foo that takes an array as an argument. The return type is void. 6. What is the difference between remove and clear in ArrayLists.

The play method in the Player class of the craps game plays an entire game without interaction with the user. Revise the Player class so that its user can make individual rolls of the dice and view the results after each roll. The Player class no longer accumulates a list of rolls, but saves the string representation of each roll after it is made. Add new methods rollDice, getNumberOfRolls, isWinner, and isLoser to the Player class. The last three methods allow the user to obtain the number of rolls and to determine whether there is a winner or a loser. The last two methods are associated with new Boolean instance variables (winner and loser respectively). Two other instance variables track the number of rolls and the string representation of the most recent roll (rollsCount and roll). Another instance variable (atStartup) tracks whether or not the first roll has occurred. At instantiation, the roll, rollsCount, atStartup, winner, and loser variables are set to their appropriate…