need some help with my Java homework. Please use Eclipse Please add comments to the to program so I can understand what the code is doing and learn Create a new Eclipse project named so as to include your name (eg smith15 or jones15). In this project, create a new package with the same name as the project. In this package, write a solution to the exercise noted below. public static double listAdder(ArrayList list) {      ??? } Examine the listAdder method fragment above. Complete the method so that it displays the list elements all on one line and returns the sum of the elements. Demonstrate the method by calling i

Given that an ArrayList of Strings named friendList has already been created and names have already been inserted, write the statement necessary to change the name "Tyler", stored at index 8, to "Bud".     This is needed in Java

Java ArrayLists can only be filled with reference type data, so you cannot fill them with primitive type data. How can you work around this with integers? (How can you have an ArrayList filled with integers?)

You have to use comment function to describe what each line does    import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.List;   public class PreferenceData {   private final List<Student> students; private final List<Project> projects; private int[][] preferences;   private static enum ReadState { STUDENT_MODE, PROJECT_MODE, PREFERENCE_MODE, UNKNOWN; };   public PreferenceData() { super(); this.students = new ArrayList<Student>(); this.projects = new ArrayList<Project>(); }   public void addStudent(Student s) { this.students.add(s); }   public void addStudent(String s) { this.addStudent(Student.createStudent(s)); }   public void addProject(Project p) { this.projects.add(p); }   public void addProject(String p) { this.addProject(Project.createProject(p)); }   public void createPreferenceMatrix() { this.preferences = new…

New JAVA code can only be added between lines 9 and 10, as seen in image.

Java Given main(), complete the SongNode class to include the printSongInfo() method. Then write the Playlist class' printPlaylist() method to print all songs in the playlist. DO NOT print the dummy head node.

This is the file :

In Java intellej    Correct this code and add the following  1.Correct: (The error shows a problem under () next to "firstBeachShoot.printPhotoDetails")   2.Add the following to the second package (screenshot):  1.for or for...each or while loops. 2.Arrays 3.default, no-args and parameterized constructors.     Here's the first package : import java.util.Scanner;public class Image {int numberOfPhotos; // photos on rolldouble fStop; // light let it 1.4,2.0,2.8 ... 16.0int iso; // sensativity to light 100,200, 600int filterNumber; // 1-6String subjectMatter;String color; // black and white or colorString location;boolean isblurry;public String looksBlurry(boolean key) {if (key == true) {return "Photo is Blurry";} else {return "Photo is Clear";}}public void printPhotoDetails(String s1) {Scanner br = new Scanner(System.in);String subjectMatter = s1;System.out.println("Data of Nature photos:");System.out.println("Enter number of photos:");numberOfPhotos = br.nextInt();int i = 1;while…

java Create a static method that: is called appendPosSum returns an ArrayList of Integers takes one parameter: an ArrayList of Integers This method should: Create a new ArrayList of Integers Add only the positive Integers to the new ArrayList Sum the positive Integers in the new ArrayList and add the Sum as the last element For example, if the incoming ArrayList contains the Integers (4,-6,3,-8,0,4,3), the ArrayList that gets returned should be (4,3,4,3,14), with 14 being the sum of (4,3,4,3). The original ArrayList should remain unchanged.  public static void main(String[] args) {    Scanner in = new Scanner(System.in);    int size = in.nextInt();    ArrayList<Integer> list = new ArrayList<>();    for(int i=0; i < size; i++) {      list.add(in.nextInt());    }     System.out.println(appendPosSum(list));

Need help with menu loop please