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- In Java, Create Movie class, which has private fields for title, director, rating. It has a constructor to initialize these fields and a toString method for printing movie details. There is also a getRating method to retrieve the movie rating. Create Rating Comparator class which implements the Comparator interface for comparing movies based on their ratings. Create DemoMovies Class. Initialize necessary data structures like LinkedList, TreeMap for rating as key and Movie from Movie class as value, TreeSet, and ProtiyQueue. Use a loop to take user input for movie detailsuntil the user enters 'WWW' as the movie title.Inside the loop, for each movie, create a Movie object, add it to various data structures that is title, director and rating based on the constructor. Add the Movie object to the LinkedList. Add the rating and the object to the TreeMap.Add the rating to the TreeSet.Add the Movie object to the Priority Queue.Display the entered movies. Sort and display Movies by rate by…Description: In this project, you are required to make a java code to build a blockchain including multiple blocks. In each block, it contains a list of transactions, previous hash - the digital signature of the previous block, and the hash of the current block which is based on the list of transactions and the previous hash. If anyone would change anything with the previous block, the digital signature of the current block will change. When this changes, the digital signature of the next block will change. Detailed Requirements: 1. Define your block class which contains three private members and four public methods. a. Members: previousHash (int), transactions (String[]), and blockHash (int); b. Methods: i. Block( int previousHash, String[] transactions){} ii. getPreviousHash(){} iii. getTransaction(){} iv. getBlockHash(){} 2. Using ArrayList to design your Blockchain. 3. Your blockchain must contain genesis block and make it to be the first block. 4. You can add a block to the end of…JAVA PROGRAM ASAP There is an extra space in the program down below as shown in the screesshot. Please modify this program even more ASAP BECAUSE the program down below does not pass all the test cases when I upload it to hypergrade. The program must pass the test case when uploaded to Hypergrade. import java.util.HashMap;import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.Scanner;public class MorseEncoder { private static HashMap<Character, String> codeMappings = new HashMap<>(); public static void main(String[] args) { initializeMappings(); Scanner textScanner = new Scanner(System.in); System.out.println("Please enter a string to convert to Morse code:"); String textForEncoding = textScanner.nextLine().toUpperCase(); if ("ENTER".equals(textForEncoding)) { System.out.println(); return; } String encodedOutput = encodeText(textForEncoding);…
- IN JAVA PLEASE1. ponder_orb_density One of the most important questions to ponder about an orb is: what is the density of this orb? Here we will assume a spherical orb and calculate (ponder) its density as a function of its radius and mass. Recall that density is mass/volume, and recall (or look up) that the volume of a sphere is 4/3 * pi * r3. Sample calls should look like: >>> ponder_orb_density(1, 1)0.23873241463784303>>> ponder_orb_density(1, 10)2.3873241463784303>>> ponder_orb_density(2.5, 200)3.05577490736439072. Linked ListsGiven the starter code consisting of ListOfNodes.java and Node.java, complete theimplementation of all the methods in ListOfNodes.java without changing the code in Node.javaor main(). You should start by commenting all the lines in main and gradually implement themethods then run the code after each method comparing the real output to the expected out listedhere. The following are some rules and guidelines you must follow:a. Read all the methods and decide if some of them will call on othersb. Reuse methods whenever possiblec. You are encouraged to write private helper methodsd. You cannot use the LinkedList class provided by the Java Framework The expected output is:[], 0[l], 1[el], 2[Hel], 3[Helo], 4[Hello], 5[ABCDE], 5ABCDE[ABCDE], 5CMPS 210 Quiz 1 Spring 2020/2021[ABCCDE], 6[ACXCDC], 6[AXCDC], 51C[AXCD], 4D[AXC], 3C[AX], 2X[A], 1A[], 0[abcde], 5[badce], 5[$badce], 6[b$daec], 6
- How do I change numCastMembers retrieved to 1 to numCastMembers retrieved to 0? Test: OK --- method getNumMinutes exists OK --- method getNumCastMembers exists OK --- method getMovieName exists OK --- method isKidFriendly exists OK --- method getCastMembers exists OK --- movieName retrieved Flick OK --- numMinutes retrieved to 0 OK --- isKidFriendly retrieved to false OK --- numCastMembers retrieved to 1 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Tape OK --- numMinutes retrieved to 10 OK --- isKidFriendly retrieved to true OK --- numCastMembers retrieved to 3 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Screening OK --- numMinutes retrieved to 120 OK --- isKidFriendly retrieved to false OK --- numCastMembers retrieved to 5 OK --- getCastMembers returns copy of the original array with the same content OK --- movieName retrieved Film OK --- numMinutes retrieved to…What is the third parameter of the following method call: Toast.makeText(paraml, param2, param3).show(); Select one: O a. For how long the toast message will appear O b. The text of the toast message O c. The parent of the toast messageUsing javascript getElementByClass- write a simple programe whereby each time a player gets shot by a bullet, the player loses a life and a 'live' is remove from the three 'lives'.If the player loses all three lives, display and print 'game over'.Display 'play again' message to restart th game. <ul class = "lives"> <li></li> <li></li> <li></li> </ul>