A. Create a METHOD in java to compute the area and the perimeter of a rectangle given the length and width (in Centimeters). Output the area in sq. cm.; sq. m.; sq.in. and sq. ft. For perimeter in cm.; m.; in.; and ft. Required Screen Layout: (Note: One sample output only) Enter Length of Rectangle : Enter Width of Rectangle Area : : Perimeter : ********* : cm. cm. sq. cm. sq. m. sq. in. . sq. ft. cm. m. in. ft.

Using Java. Implement a deque, except base your implementation on an array. The constructor for the class should accept an integer parameter for the capacity of the deque and create an array of that size. Use a graphical user interface based on an array of text fields similar to what is shown in the image attached. Test your deque class by constructing a deque with capacity 10. Below also is an unfinished code for the challenge. #################################Array Based Deque################################# public class ArrayBaseDeque{private String [ ] q; // Holds queue elementsprivate int front; // Next item to be removedprivate int rear; // Next slot to fillprivate int size; // Number of items in queue private int count = 0;/**Constructor.@param capacity The capacity of the queue.*/ArrayBaseDeque(int capacity){q = new String[capacity];front = 0; rear = 0;size = 0;}/**The capacity method returns the length of the array used to implement the queue.@return The capacity of the...

In JavaScript, how are an object and an interface related to each other? a. The object’s interface consists of the code and data needed for that object. b. An object’s interface is analogous to a pocket calculator’s inner workings. c. Built-in JavaScript objects do not require an interface, but custom objects do. d. An interface allows another program to access an object’s properties and methods.

Implement a graphical application that displays a list of courses. Briefly, this GUI will take the inputs (i.e., course information), store them in an array list, and display course information in the output area. Figure 1 shows the layout ofthe CourseDisplay GUI. You should have three Java files: 1. CourseDisplayFrame class that extendsJFrame class (The main part of your program). 2.CourseDisplayViewer class, which contains the main method where a CourseDisplay object will be created, and the GUI will pop up (Suggested frame width of 450, and frame height of 400). 3.Course class, which is the class that models the Course objects (This file will be given to you). In your CourseDisplayFrame class file, you should have the followings: •Input area: –A text label and a text field (suggested width of 30) for course code; –A text label and a text field (suggested width of 30) for course name; –A text label and a text field (suggested width of 30) for course credit; –A text label and a text...

Please help me with my assignment for computer science as I had all the dialog box pop up for me except for "Whew" what am I doing wrong? I am including with this message the coding block for the assignment. import java.awt.event.*;import javax.swing.*;public class MouseWhisperer extends JFrame implements MouseListener {MouseWhisperer() {super("COME CLOSER");setSize(300,100);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);addMouseListener(this);setVisible(true);}public void mouseClicked(MouseEvent e) { setTitle("OUCH"); }public void mousePressed(MouseEvent e) { setTitle("LET GO"); }public void mouseReleased(MouseEvent e) { setTitle("WHEW"); }public void mouseEntered(MouseEvent e) { setTitle("I SEE YOU"); }public void mouseExited(MouseEvent e) { setTitle("COME CLOSER"); }public static void main(String[] args) { new MouseWhisperer(); }} Please advice.

please write code in java Create a right triangle class with instance variables(double) for sideA, sideB and the hypo. write three constructors -the 2-param version assigns to sides A and B respectively. the 1-param version assigns the same value to both sides. the 0-param version assigns 10.0 to each side. the constructor also computes the hypotenuse based on the other two sides and saves that in the hypotenuse variable. Create accessors for all three variables. Write a toString() that will print/label the three sides. write some main code to create three instances of your class, one to test each of your constructors. you can input values or use fixed values. Display each instance using an implicit toString() call.

Computer Science Question

Implement the Solver class. In doing so, you are allowed to define other classes to help you (as well as use "built-in" Java classes or the book’s classes). The point of the solver class is the solve method which takes a board/puzzle configuration represented as a 2D array of booleans and returns a char array containing a minimal sequence of moves that will lead to the solved board (all the cells around the edges being filled). The board configuration is passed in as a 5-by-5 boolean array of Booleans with exactly 16 true cells (filled) and 9 false cells (empty). The solve method then returns an array of characters representing a minimal sequence of moves that solves the puzzle. In other words, if the characters from the returned array are used in order as input to the move method on the Board object representing the initial configuration, the resulting board configuration represents the solved board. Furthermore, the solution must be minimal in the sense that there are no solutions...

Implement the Solver class. In doing so, you are allowed to define other classes to help you (as well as use "built-in" Java classes or the book’s classes). The point of the solver class is the solve method which takes a board/puzzle configuration represented as a 2D array of booleans and returns a char array containing a minimal sequence of moves that will lead to the solved board (all the cells around the edges being filled). The board configuration is passed in as a 5-by-5 boolean array of Booleans with exactly 16 true cells (filled) and 9 false cells (empty). The solve method then returns an array of characters representing a minimal sequence of moves that solves the puzzle. In other words, if the characters from the returned array are used in order as input to the move method on the Board object representing the initial configuration, the resulting board configuration represents the solved board. Furthermore, the solution must be minimal in the sense that there are no solutions...

When you add a contact to your phone, it automatically sorts those names alphabetically. In this exercise, we are going to create a phonebook that automatically sorts everytime a new number is added to the phonebook. A PhoneNumber class has been created already that has the instance variables name and number. Your job is to create the PhoneBook class that will store an ArrayList of PhoneNumbers. The PhoneBook class does not have a constructor - it only contains an ArrayList that can store the individual phone numbers that are added to it. There should be three methods in the PhoneBook class: addNumber- This method takes a PhoneNumber and adds it to the directory. Once the number has been added, the sort method is called on the directory to sort that new address into the phone book. sort- This method sorts the directory in alphabetical order A-Z.a. Remember that in order to compare Strings, we can use the compareTo() method. This returns an integer that indicates whether a String’s...

java please dont take other website'answer. rthis is actually practice question ANIMALCLASS Create an Animal class. Each animal has a name, an x and y integer coordinate. The Animal class should have at minimum the following methodsbelowbut you may want to add more if necessary: Also note, everyanimal will need to have to have "z"passed to it so that it knows how big the map is. •A constructor that starts the animal at 0,0 with a name of "Unknown Animal"and only accepts a single int value (int mapSize). •A parameter constructor that allows the programmerto input all 4pieces of information.(x,y, name, mapSize)oCheck the parameters for valid input based on the constraints. Ifany of the input valuesis invalid, adjust it any way you deem necessary in order to make it valid. •getX()and getY() •getName() •toString(). o This should print out the name and coordinates of the animal. •touching(Animal x) This method should determine if the animal is on the same spot as a secondanimal(x). It...

I'm interested in creating a digital personal assistant similar to Alexa and Siri, which can efficiently manage schedules. Specifically, I want to design a tool in Java that allows users to find events during a certain time period. This tool should also enable users to add and cancel events as their schedules change. To achieve this, I plan to use a SkipListMap class with specific operations (get, put, remove, subMap) and a DoublyLinkedList class. Additionally, I'll use the FakeRandomHeight class for debugging and testing. Could you provide guidance on how to approach this project, especially in terms of implementing the SkipListMap class and managing event data efficiently? Sample Input: AddEvent 101910 BreakfastAddEvent 101913 LunchAddEvent 101918 DinnerGetEvent 101914AddEvent 101911 Data StructuresAddEvent 102007 ExercisePrintSkipListAddEvent 101915 HomeworkCancelEvent 102007AddEvent 102013 RelaxAddEvent 102011 Read a BookGetEvent 101915AddEvent 101914 Call MomPrintSkipList I...

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...