How many instances of Point are created in the line Point six = new Point (0, 0); inJava?
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How many instances of Point are created in the line
Point six = new Point (0, 0); inJava?
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- How many instances of Point are created in the following lines of code? How do you get the answer?Point one = new Point(3, 5);Point two = new Point(20,20);Point three = one;Point four = one;Point five = two;Point six = new Point(0,0);Task 1:The first task is to make the maze. A class is created called Maze, in which a 2D array for the maze is declared. Your job is to implement the constructor according to the given javaDoc. When you completed this task, write a set of Junit test case to test your code.As you probably noticed, the maze is defined as a private variable. The second job for you is to write an accessor(getter) method that returns the maze. Other information about what is expected for this method is given in the starter code. public class PE1 { MazedogMaze; /** * This method sets up the maze using the given input argument * @param maze is a maze that is used to construct the dogMaze */ publicvoidsetup(String[][]maze){ /* insert your code here to create the dogMaze * using the input argument. */ }Add a constructor to the Point class that accepts another Point as a parameter and initializes this new Point to have the same (x, y) values. Use the keyword this in your solution.
- How can you evaluate the state of an ArrayList to assess how effectively it is functioning?What happens if you add an entry to a map that uses a key that already exists?(Count entire words, not parts of words. For example rate and rated would be different counts. Say rate is there 10 times and rated is there 5 times, that should be the count not rate 15, rated 5. Don't count parts of words.) A Map is an interface that maps keys to values. The keys are unique and thus, no duplicate keys are allowed. A map can provide three views, which allow the contents of the map to be viewed as a set of keys, collection of values, or set of key-value mappings. In addition, the order of the map is defined as the order in which, the elements of a map are returned during iteration. The Map interface is implemented by different Java classes, including HashMap, HashTable, and TreeMap. Each class provides different functionality and can be either synchronized or not. Also, some implementations prohibit null keys and values, and some have restrictions on the types of their keys. A map has the form Map <k,v> where: K: specifies the type of keys maintained in…
- The code given below represents a saveTransaction() method which is used to save data to a database from the Java program. Given the classes in the image as well as an image of the screen which will call the function, modify the given code so that it loops through the items again, this time as it loops through you are to insert the data into the salesdetails table, note that the SalesNumber from the AUTO-INCREMENT field from above is to be inserted here with each record being placed into the salesdetails table. Finally, as you loop through the items the product table must be update because as products are sold the onhand field in the products table must be updated. When multiple tables are to be updated with related data, you should wrap it into a DMBS transaction. The schema for the database is also depicted. public class PosDAO { private Connection connection; public PosDAO(Connection connection) { this.connection = connection; } public void…EclipseIDE - Java Programming assigment For your program: Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances. Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.Q1. Given the following set: pets = {"cat", "dog", "horse"}, replace the word "dog" with "cow". You cannot assume that you know the index of "dog" - you must find it using code.
- What happens when you add an entry to a map with a key that already exists in the map?Help, I am making a elevator simulation using polymorphism. I am not sure to do now. Any help would be appreciated. My code is at the bottom, that's all I could think off. There are 4 types of passengers in the system:Standard: This is the most common type of passenger and has a request percentage of 70%. Standard passengers have no special requirements.VIP: This type of passenger has a request percentage of 10%. VIP passengers are given priority and are more likely to be picked up by express elevators.Freight: This type of passenger has a request percentage of 15%. Freight passengers have large items that need to be transported and are more likely to be picked up by freight elevators.Glass: This type of passenger has a request percentage of 5%. Glass passengers have fragile items that need to be transported and are more likely to be picked up by glass elevators. public abstract class Passenger { public static int passangerCounter = 0; private String passengerID; protected…I want more simple solution please and I use replit to implement this code and I want you define class not struct please