JAVA Which methods can you call on a variabe of type Class without using casts?
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JAVA
Which methods can you call on a variabe of type Class <?> without using casts?
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- This is for python class, so please answer in python 9.12 LAB: Product class In main.py define the Product class that will manage product inventory. Product class has three attributes: a product code, the product's price, and the number count of product in inventory. Implement the following methods: A constructor with 3 parameters that sets all 3 attributes to the value in the 3 parameters set_code(self, code) - set the product code (i.e. SKU234) to parameter code get_code(self) - return the product code set_price(self, price) - set the price to parameter price get_price(self) - return the price set_count(self, count) - set the number of items in inventory to parameter count get_count(self) - return the count add_inventory(self, amt) - increase inventory by parameter amt sell_inventory(self, amt) - decrease inventory by parameter amtDefine the missing method. Use "this' to distinguish the local member from the parameter name. // ===== Code from file CablePlan.java public class CablePlan { private int numDays; // FIXME: Define setNumDays () method, using "this" implicit parameter. public void setNumDays (int numDays) { /* Your solution goes here */ } public int getNumDays () { return numDays; } // ==== end // ===== Code from file CallCablePlan.java import java.util.Scanner; public class CallCablePlan { public static void main (String [] args) { Scanner scnr = new Scanner (System.in); new CablePlan (); CablePlan houselPlan int userNum; scnr.nextInt (); houselPlan.setNumDays (userNum); System.out.println (houselPlan.getNumDays ()); userNum = // ===== end ==== =java program : Assume the following method is added to the ArrayStack class. What does this method do? public ArrayStack<E> Undefined() { int j = topOfStack; ArrayStack<E> st1= new ArrayStack<E>(topOfStack + 1); for(int i = 0; i < topOfStack + 1; i++) { st1.theData[j] = theData[i]; j-- ; } return st1; } The method will return a stack containing all the elements of “this” stack in the reverse order. The method will return a stack containing the alternative elements of “this” stack in the original order. The method will return a stack containing all the elements of “this” stack in the original order. The method will return a stack containing the alternative elements of “this” stack in the reverse order.
- Lab 10 Using an interface to share methods It is often the case that two or more classes share a common set of methods. For programming purposes we might wish to treat the objects of those classes in a similar way by invoking some of their common routines.For example, the Dog and Cat classes listed below agree on the void method speak. Because Dog and Cat objects have the ability to “speak,” it is natural to think of putting both types of objects in an ArrayList and invoking speak on every object in the list. Is this possible? Certainly we could create an ArrayList of Dog that would hold all the Dog objects, but can we then add a Cat object to an ArrayList of Dog?Try running the main program below as it is written. Run it a second time after uncommenting the line that instantiates a Cat object and tries to add it to the ArrayList. import java.util.*;public class AnimalRunner{ public static void main(String[] args) { ArrayList<Dog> dogcatList = new ArrayList<Dog>();…package lab1; /** * A utility class containing several recursive methods * * <pre> * * For all methods in this API, you are forbidden to use any loops, * String or List based methods such as "contains", or methods that use regular expressions * </pre> * * */ public final class Lab1 { /** * This is empty by design, Lab class cannot be instantiated */ privateLab1(){ // empty by design } /** * Returns the product of a consecutive set of numbers from <code> start </code> * to <code> end </code>. * * @param start is an integer number * @param end is an integer number * @return the product of start * (start + 1) * ..*. + end * @pre. * <code> start </code> and <code> end </code> are small enough to let * this method return an int. This means the return value at most * requires 4 bytes and no overflow would happen. */ publicstaticintproduct(ints,inte){ if(s==e){ returne; }else{ returns*product(s+1,e); } }…Create a class IntArray. Create two constructors. Nullary constructor create an array of size 10 and initiazes all values to 0. Parametrized constructor has signature IntArray(int num, int s). Thiscreates an array of size s and initializes all values. c++
- Java- Suppose that Vehicle is a class and Car is a new class that extends Vehicle. Write a description of which kind of assignments are permitted between Car and Vehicle variables.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) 25.00Complete the Kennel class by implementing the following methods: addDog(Dog dog) findYoungestDog() method, which returns the Dog object with the lowest age in the kennel. Assume that no two dogs have the same age. Given classes: Class LabProgram contains the main method for testing the program. Class Kennel represents a kennel, which contains an array of Dog objects as a dog list. (Type your code in here.) Class Dog represents a dog, which has three fields: name, breed, and age. (Hint: getAge() returns a dog's age.) For testing purposes, different dog values will be used. Ex. For the following dogs: Rex Labrador 3.5 Fido Healer 2.0 Snoopy Beagle 3.2 Benji Spaniel 3.9 the output is: Youngest Dog: Fido (Healer) (Age: 2.0)
- Current file: Team.java Load default template... 1 public class Team { // TODO: Declare private fields - name, wins, losses 2 3 4 5 // TODO: Define mutator methods // setName(), setWins(), setLosses() 7 8 // TODO: Define accessor methods // 9. 10 getName(), getWins(), getLosses() 11 12 13 // TODO: Define getWinPercentage() 14 15 16 // TODO: Define printStanding()Java programming - please see attched image for initial instruction before the following below. Write a subclass of VowelSeparator that adds three additional methods and a constructor. The class should be named VowelSeparatorAndCounter. Here are the methods to add: void setString(String s) This method should replace the string stored by the object with s. If the argument is null then the method should throw an IllegalArgumentException. (This is an unchecked exception) int getVowelCount() This method should return the number of vowels in the string.int getNonVowelCount() This method should return the number of characters in the string that are not vowels. Write a static method that accepts an array of VowelSeparatorAndCounter objects and returns the total number of vowels contained in all of them. It should have the following signature: public static int totalVowelCount(VowelSeparatorAndCounter[] a)JAVA PROGRAM Chapter 7. PC #1. Rainfall Class Write a RainFall class that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: • the total rainfall for the year • the average monthly rainfall • the month with the most rain • the month with the least rain Demonstrate the class in a complete program. Main class name: RainFall (no package name) HERE IS A WORKING CODE, PLEASE MODIFY THIS CODE SO THE PUBLIC CLASS IS MAIN AND WERE EVER THERE IS MAIN IN THE CHANGE IT SO IT RUNS. ALSO, MAKE SURE WHEN I UPLOAD THE CODE TO HYPERGRADE IT PASSES ALL THE TEST CASES. THANK YOU import java.util.Scanner;public class Main { private double[] rainfall = new double[12]; public Main(double[] rainfall) { this.rainfall = rainfall; } public double getTotalRainfall() { double total = 0.0; for(double rain : rainfall) { total += rain; }…