Create a graph class using an adjacency list from scratch in Java. Can not use the util library

Use a SinglyLinked List to implement a Queuea. Define a Queue interface.b. Define a LinkedQueue class (Node class)..c. Define a Test class to test all methods please help me make a test class first code package LinkedQueue;   import linkedstack.Node;   public class SLinkedList<E> { private Node <E> head = null; private Node <E> tail = null; private int size = 0;     public SLinkedList() { head = null; tail = null; size = 0;   }   public int getSize() { return size;   } public boolean isEmpty() { return size == 0;   }   public E getFirst() { if(isEmpty()) { return null; } return head.getElement(); }  public E getLast() { if(isEmpty()) { return null; } return tail.getElement();  }  public void addFirst(E e) { Node<E> newest = new Node<>(e, null); newest.setNext(head); head = newest; if(getSize()==0) { tail = head; } size++;    }    public void addLast(E e) { Node<E> newest = new Node<>(e, null); if(isEmpty()) { head = newest; } else {…

Complete using Java import java.util.Scanner; import java.util.ArrayList; public class SET { ArrayListlist; int length; public SET(); { list=new ArrayList<>(10); length=0; } public SET(int cap) { list=new arrayList<>(cap); length=0; } public int getLength() { return length; } } public class SetApplication { public static void main(String[] args) { SET st=new SET(); System.out.println(st.getLength()); } }

Add missing code to turn this class a singleton in Java package com.gamingroom; import java.util.ArrayList;import java.util.List; /** * A singleton service for the game engine */public class GameService {  /**  * A list of the active games  */ private static List<Game> games = new ArrayList<Game>();  /*  * Holds the next game identifier  */ private static long nextGameId = 1;  // FIXME: Add missing pieces to turn this class a singleton  /**  * Construct a new game instance  *   * @param name the unique name of the game  * @return the game instance (new or existing)  */ public Game addGame(String name) {   // a local game instance  Game game = null;   // FIXME: Use iterator to look for existing game with same name  // if found, simply return the existing instance   // if not found, make a new game instance and add to list of games  if (game == null) {   game = new Game(nextGameId++, name);   games.add(game);  }   // return the new/existing game instance to the caller  return…

Draw a class diagram that shows how to use JCF class ArrayList, LinkedList, and Iterator using a UML drawing tool.

Use a SinglyLinked List to implement a Queuea. Define a Queue interface.b. Define a LinkedQueue class (Node class)..c. Define a Test class to test all methods help me make a test class  first code package LinkedQueue;   import linkedstack.Node;   public class SLinkedList<E> { private Node <E> head = null; private Node <E> tail = null; private int size = 0;     public SLinkedList() { head = null; tail = null; size = 0;   }   public int getSize() { return size;   } public boolean isEmpty() { return size == 0;   }   public E getFirst() { if(isEmpty()) { return null; } return head.getElement(); }  public E getLast() { if(isEmpty()) { return null; } return tail.getElement();  }  public void addFirst(E e) { Node<E> newest = new Node<>(e, null); newest.setNext(head); head = newest; if(getSize()==0) { tail = head; } size++;    }    public void addLast(E e) { Node<E> newest = new Node<>(e, null); if(isEmpty()) { head = newest; } else {…

I am having trouble determining time complexity when it comes to finding the runtime of a method or function. I need to know what the runtime for the following methods are. Any further explanation would also be helpful. All of these methods are dealing with a binary search tree in java. 1. public String getAllValues() - return a String that contains the elementsof the tree in ascending order. All elements are separated by a space. 2. public int numberNodes() - return the total number of nodes in the tree. 3. public void insertList(int[] list) - insert all of the values from list intothe tree. Note: My Method just goes through an array calling working insert() method on all the values in the list[] array. 4. public int removeLessThan(int value) - this method removes all integers strictly less than value from the tree. It also returns the number of nodes itremoved. Note: In this method I first call a method to count nodes less than I call another method to recursively remove by…

Write a LISP function, outdegree, of two arguments, a node and the graph, which returns the outdegree of the node. (the outdegree of a node, k, is the number of arcs coming out of the node, i.e. # of arcs that have the node k as a source). The graph is represented by the adjacency list representation.

I need help on writing a interface using python Tkinter where a user can draw graph data structure. It should look like a typical graph with circles for vertices and straight edges betweenthe vertices. The graph should be stored in a Python dictionary. Please help. Only Python tkinter is allowed to use

Consider the instance variables and constructors.  Given Instance Variables and Constructors: public class SimpleLinkedList<E> implements SimpleList<E>, Iterable<E>, Serializable {      // First Node of the List      private Node<E> first;      // Last Node of the List      private Node<E> last;      // Number of List Elements      private int count;      // Total Number of Modifications (Add and Remove Calls)      private int modCount;        /**       * Creates an empty SimpleLinkedList.       */      publicSimpleLinkedList(){          first = null;          last = null;          count = 0;          modCount = 0;      }      ...   Assume the class contains the following methods that work correctly: public boolean isEmpty() public int size() public boolean add(E e) public E get(int index) private void validateIndex(int index, int end)   Complete the following methods based on the given information from above. /** * Adds an element to the list at the…