4. Objects Shoe1 Given the object below, write a line of code that will print the value of brand to the console. Hint: the console should read Nike after this code is run. Remember to log something to the console, you use console.log(). var shoe = { brand: "Nike", model: "Air Jordan 3 Retro", size: 8.5, color: "black"
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- Rules: Corner cases. By convention, the row and column indices are integers between 0 and n − 1, where (0, 0) is the upper-left site. Throw an IllegalArgumentException if any argument to open(), isOpen(), or isFull() is outside its prescribed range. Throw an IllegalArgumentException in the constructor if n ≤ 0. Unit testing. Your main() method must call each public constructor and method directly and help verify that they work as prescribed (e.g., by printing results to standard output). Performance requirements. The constructor must take Θ(n^2) time; all instance methods must take Θ(1)Θ(1) time plus Θ(1)Θ(1) calls to union() and find().In main(), prompt the user for two items and create two objects of the ItemToPurchase class. Before prompting for the second item, call scnr.nextLine(); to allow the user to input a new stringExercise 2. Create a Book class where: Each book contains the following information: book title book Author name, barcode (as fong integers), and book topic. o Implement an appropriate constructor(s) and all necessary get/set methods. Test Book class: o Create diffcrent book objects (at least 5 hooks) and store them in a LinkedList sorted by book barcode value Generate a unique random integer value for the barcode. Iterate through the LinkedList and print out the books' details O Create a second LinkedList object containing a copy of the above LinkedList, but in reverse order.
- Write an application TestStudent that prompts for and reads a student name. It then creates a Student object. It then prompts for and reads the number of quizzes n that the student has taken. It then prompts for and reads the scores of the student in n quizzes and adds each to the totalScore of the student using addQuiz() method. Finally, the application prints the student object using the toString() method, and it also prints his quiz average. The main method must handle java.util.InputMismatchException, java.lang.IllegalArgumentException and java.lang.Unsupported OperationException.Setup Instructions: Create a new class named Lab4 in the edu.ben.labs.lab4 package of your CMSC200 Java Project. Problem Set: Let's place a marker on the circle numbered 1 in the grid below. Then we will toss a coin. If the coin toss resulted in a 'heads', we would move the marker along the path labeled 'H' to the circle numbered 5. If the coin toss resulted in a 'tails', we would move the marker along the path labeled T' to the circle numbered 4. Now we would toss the coin again and move the marker accordingly. This is repeated for any number of coin tosses. The purpose of this problem is to simulate this automata and to report 2 3 the number of the circle on which the marker ends after a series of coin tosses. The marker always begins on the circle numbered 1. 7 Iпрut: Your program should accept a string consisting only of the characters 'h' or t, where each character represents the outcome of a coin toss ('h' - heads, 't - tails). The string is terminated by a #' character. Each…Implement the following class. Refer to the below notes for more details. SimCard phoneNumber: String internationalService: boolean minutes: int // default 0 costPerMinute: double + SimCard ( ) + SimCard ( newPhoneNumber: String, newInternationalService: boolean ) + getters and setters of phoneNumber, internationalService and costPerMinute + callLocal (duration: int): void + callInternational(duration: int): boolean + bill(): double o phoneNumber: private String representing the phone number. Default is "00-000000" o internationalService : private boolean indicating whether international calls are allowed or not. Default is false. o minutes: private int representing the number of minutes to be invoiced (added to the bill). Default is 0. o costPerMinute: private double representing the cost of 1 minute. This value should be positive. Default value is 0.2. Assume all the sim card has the same cost rate per minute. LS) The no-arg constructor that will create a new SimCard with the default…
- You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message(This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note:Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f,Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message (This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note: Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f, Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…Compulsory Task 1 Follow these steps: ● Download the Singleton Exercise.java file. Change the Deck class into a Singleton class. Change the main method to get the Deck instance rather than creating a new object. The program should print all 52 cards in random order.
- - a computer store management application with different jframes for customers and orders etc., using Swing library of Java programming language. Choose one of the applications above. Project logic is completely up to you. However, your application is supposed to include at least 3 different windows, in other words, 3 JFrames and you should create connections between those frames according to the logic of your application. Those JFrames can be accompanied by normal (model) java classes as well. In your application, file writing and file reading methods should be utilized. When submitting your project, you are required to have following parts in your paper; • A general description of the application. • Brief explanation of the logic of using different components in the application. • Screenshots of all possible windows. • Source codes (Showing each class separately).DescriptionIn this assignment, you are required to implement an electronic programming quiz system. User can createquestions and preview the quiz.Your TaskYou are asked to write a Java program for the programming quiz system. There are two types of questions:Multiple Choice Question and Ture/False Question. User can create questions using the system; andpreview the quiz, which display all questions in the system one by one. During the preview, the user canattempt the quiz by entering his/her answers to questions. The system will then immediately check theanswer and calculate. After attempting all questions, the total score will be displayed. A sample run of theprogram is shown as below (Green text refers to user input): Please choose (c)reate a question, (p)review or (e)xit >> cEnter the type of question (MC or TF) >> MCEnter the question text >> Each primitive type in Java has a correspondingclass contained in the java.lang package. These classes are called…Design a class called Post. This class models a StackOverflow post. It should have properties for title, description and the date/time it was created. We should be able to up-vote or down-vote a post. We should also be able to see the current vote value. In the main method, create a post, up-vote and down-vote it a few times and then display the the current vote value.