Write a java program to create a linked list named "grades" with four elements: "Second grade", "Third grade", "Fourth grade", and "Sixth grade".

Given the MileageTrackerNode class, complete main() in the MileageTrackerLinkedList class to insert nodes into a linked list (using the insertAfter() method). The first user-input value is the number of nodes in the linked list. Use the printNodeData() method to print the entire linked list. DO NOT print the dummy head node. Ex. If the input is: 3 2.2 7/2/18 3.2 7/7/18 4.5 7/16/18 the output is: 2.2, 7/2/18 3.2, 7/7/18 4.5, 7/16/18 public class MileageTrackerNode {   private double miles;         // Node data                                                            private String date;          // Node data   private MileageTrackerNode nextNodeRef; // Reference to the next node                                  public MileageTrackerNode() {      miles = 0.0;      date = "";      nextNodeRef = null;   }    // Constructor                                                                                        public MileageTrackerNode(double milesInit, String dateInit) {      this.miles =…

In this problem you will fill out three functions to complete the Group ADT and the Diner ADT. The goal is to organize how diners manage the groups that want to eat there and the tables where these groups sit. It is important to take the time to read through the docstrings and the doctests. Additionally, make sure to not violate abstraction barriers for other ADTS, i.e. when implementing functions for the Diner ADT, do not violate abstraction barriers for the Group ADT, and vice versa. # Diner ADT def make_diner (name): """ Diners are represented by their name and the number of free tables they have.""" return [name, 0] def num_free_tables (diner): return diner [1] def name (diner): return diner [0] # You will implement add_table and serve which are part of the Diner ADT # Group ADT def make_group (name): Groups are represented by their name and their status.""" return [name, 'waiting'] |||||| def name (group): return group [0] def status (group): return group [1] def start_eating…

Task 4: Matplotlib Import the plotting function by the command: import matplotlib.pyplot as plt Plotting multiple lines Compute the x and y coordinates for points on sine and cosine curves and plot them on the same graph using matplotlib. Add x and y labels to the graph as well. Note: Please provide PYTHON (ANACONDA) code for above task.

implement C# code to create a list of Card objects, add two Card objects to the list, use a loop to flip the cards in the list and print it.

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

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.

Java

In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Then, display the contents of this HashMap with given words and their frequency in the document. Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it.