Question 2 Which of the following statements about the code above are true? Select all that apply. You can assume that the Node class is the same one used in the HW05 JAR file. In fact, you can compile and run this code to check your answers as long as you add the JAR file to the classpath. The line marked output 3 will print null when the code is executed. OThe line marked output 4 will print simon when the code is executed. O The line marked output. 1 will print null when the code is executed. O The line marked Output 2 will print Sally when the code is executed.
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- Create a new C++ project in Visual Studio (or an IDE of your choice). Add the files listed below to your project: BinaryTree.h Download BinaryTree.h BinarySearchTree.h Download BinarySearchTree.h main.cpp Download main.cpp Build and run your project. The program should compile without any errors. Note that function main() creates a new BST of int and inserts the nodes 12, 38, 25, 5, 15, 8, 55 (in that order) and displays them using pre-order traversal. Verify that the insertions are done correctly. You may verify it manually or use the visualization tool at https://www.cs.usfca.edu/~galles/visualization/BST.html. (Links to an external site.) Do the following: 1. add code to test the deleteNode and search member functions. Save screenshot of your test program run. 2. add code to implement the nodeCount member function of class BinaryTree. Test it and save screenshot of your test program run. 3. add code to implement the leafCount member function of class BinaryTree. Test it and…astfoodStats Assignment Description For this assignment, name your R file fastfoodStats.R For all questions you should load tidyverse, openintro, and lm.beta. You should not need to use any other libraries. suppressPackageStartupMessages(library(tidyverse)) suppressPackageStartupMessages(library(openintro)) suppressPackageStartupMessages(library(lm.beta)) The actual data set is called fastfood. Continue to use %>% for the pipe. CodeGrade does not support the new pipe. Round all float/dbl values to two decimal places. All statistics should be run with variables in the order I state E.g., "Run a regression predicting mileage from mpg, make, and type" would be: lm(mileage ~ mpg + make + type...) To access the fastfood data, run the following: fastfood <- openintro::fastfood Create a correlation matrix for the relations between calories, total_fat, sugar, and calcium for all items at Sonic, Subway, and Taco Bell, omitting missing values with na.omit(). Assign the…In Java programming Write the code to print out a customer report. Your code must read each customer from a file, populate the object, place the object in a linked list, and display the data from the linked list. Use the customer object name from Customer customer = new Customer ( “ customer name” ); Assume you have opened a file and read a line into the customer object. Write the signature line for this method Write the line of code that will write the object to a linked list Write the line of code that will print the customer object properties. Be sure to include a textual description of each property.
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- In this project, you should develop a library management system application using structuresand files. More specifically, your application should enable a user to read and write bookdetails to a file (books.txt). The file should store the following information for the books. Oneline per book and each field to be separated by tab.• Book ISBN• Book title• Author first name• Author surname• Year• Availability for loan [yes/no]The user of this application should have the following options in the form of a nice presentedmenu.Add a book: The user should add all the details of each book by answering a set of questions(book isbn? Book title? author? year?). The availability for loan is randomly generated by theprogram (y: yes, n:no). The book should be added at the end of the file.Search for a book: The user should be given three options here.▪ Search by the title: The user will input a keyword and the program willsearch for all the titles that contain this keyword and display all…A user wants to redirect a list to a file named users.txt. Identify the command line to implement this function. Choose an answer A ls > users.txt B cat > users.txt C ls < users.txt D ls 2> users.txtusing c++ create a linked list so that the linked list can read content from a binary file and write the list back to a binary file. The binary file to read should look something like this: 9 -3 5 2 6 8 it should have a list of integers to read into your linked list, NOT a list of commands like: L1.insertTail(5);