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- Assume the existence of a Widget class that implements the Comparable interface and thus has a compareTo method that accepts an Object parameter and returns an int. Write an efficient static method, getWidgetMatch, that has two parameters. The first parameter is a reference to a Widget object. The second parameter is a potentially very large array of Widget objects that has been sorted in ascending order based on the Widget compareTo method. The getWidgetMatch searches for an element in the array that matches the first parameter on the basis of the equals method and returns true if found and false otherwise.Implement the following tasks by using concepts of object-oriented programming (Java). i. Create a generic class with a type parameter that simulates drawing an item at random out of a box. This class could be used for simulating a random drawing. For example, the box might contain Strings representing names written on a slip of paper, or the box might contain Integers representing a random drawing for a lottery based on numeric lottery picks. Create an add method that allows the user of the class to add an object of the specified type along with an isEmpty method that determines whether or not the box is empty. Finally, your class should have a drawItem method that randomly selects an object from the box and returns it. If the user attempts to drawn an item out of an empty box, return null. Write a main method that tests your class.ii. The following is a short snippet of code that simulates rolling a 6-sided dice 100 times. There is an equal chance of rolling any digit from 1 to…Java - Encapsulation Create a class Point with attributes x and y which are both integers. Create getters and setters for these attributes and implement the following methods: 1. calculateDistance() - calculates the distance from the origin to the point. Returns a double, formula is sqrt(x^2 + y^2) 2. printCoordinates() - prints "(x,y)" Ask for user inputs for x and y. Use the methods printCoordinates() and calculateDistance() respectively. Inputs 1. X 2. Y Sample Output Enter x: 20 Enter y: 15 (20,15) 25.00
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- Make a recursive method for factoring an integer n. First, find a factor f, then recursively factor n / f. This assignment needs a resource class and a driver class; these two classes will need to be in two separate files. The resource class will contain all of the methods and the driver class only needs to call the methods. The driver class needs to have only 5 lines of code. The code needs to be written in Java.In this project you will implement a Set class which represents a general collection of values. For this assignment, a set is generally defined as a list of values that is sorted and does not contain any duplicate values. More specifically, a set shall contain no pair of elements e1 and e2 such that e1.equals(e2) and no null elements. Requirements To ensure consistency among all implementations there are some requirements that all implementations must maintain. • Your implementation should reflect the definition of a set at all times. • For simplicity, your set will be used to store Integer objects. • An ArrayList<Integer> object must be used to represent the set. • All methods that have an object parameter must be able to handle an input of null. • Methods such as Collections.sort that automatically sort a list may not be used. • The Set class shall reside in the default package. Recommendations There are deviations in program implementation that are acceptable and will not…Computer Science In JAVA (not javascript) Build a class to encapsulate and implement the ADT of the problem below. Include instance variables, if it has public methods, and other classes if needed. Incude a test driver The ADT in this case is a Stack. Write the code for this stack. You are hired to help design software to help with a key train operation: processing food orders on a trip. Once the manager says that it is ok, train staff to walk from the back of the plane to the front taking everyone’s order. When they reach the front, they begin preparing those orders. Food orders are prepared in groups of 10, that being the number of cups that can fit onto a carrying tray. The first group whose food orders are prepared are those in the front of the plane (first class). The second group is the next 10 people further back in the plane and so on. You are in charge of developing a new application that will let train staff take food orders and then display those orders 10 at a time in…