Kindly explain this properly which one gives Error and Attach Screen shot of the output. Q4. Which of the following code samples can be compiled successfully? Assume thatall the classes are defined in separate files.Sample 1class AA {public AA (int i) {System.out.print("AA");class BB extends AA {public BB(int i) {System.out.print("BB");Sample 2class CC {public CC(int i) {System.out.print ("CC");class DD extends CC {public DD(int i) {super (i);System.out.print("DD");Sample 3class EE {class FF extends EE {// Emptypublic FF(int i) {System.out.print ("FF");A. Samples 1 and 2 only.B. Samples 1 and 3 only.C. Samples 2 and 3 only.D. Samples 1, 2 and 3.E.None of the above.

OPTION C will be the Right Answer. //IN THE PROGRAM Sample 1 When we compile the Sample 1 program…

Q4. Which of the following code samples can be compiled successfully? Assume that all the classes are defined in separate files. Sample 1 class AA { public AA (int i) { System.out.print ("AA"); } class BB extends AA { public BB(int i) { System.out.print("BB");

Q4. Which of the following code samples can be compiled successfully? Assume that all the classes are defined in separate files. Sample 1 class AA { public AA (int i) { System.out.print ("AA"); } class BB extends AA { public BB(int i) { System.out.print("BB");

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter12: Adding Functionality To Your Classes

Section12.4: Class Inheritance And Polymorphism

Problem 2E

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Instructions-Java Assignment is to define a class named Address. The Address class will have three private instance variables: an int named street_number a String named street_name and a String named state. Write three constructors for the Address class: an empty constructor (no input parameters) that initializes the three instance variables with default values of your choice, a constructor that takes the street values as input but defaults the state to "Arizona", and a constructor that takes all three pieces of information as input Next create a driver class named Main.java. Put public static void main here and test out your class by creating three instances of Address, one using each of the constructors. You can choose the particular address values that are used. I recommend you make them up and do not use actual addresses. Run your code to make sure it works. Next add the following public methods to the Address class and test them from main as you go: Write getters and…
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Inheritance, Polymorphism, ArrayLists, Throwing Exceptions The UML diagram below shows a set of classes designed to represent a music collection from 1995. The constructors and methods all function in the standard way, except: The equipmentRequired method should return “Record Player” or “CD Player” as appropriate.The getAlbum method of the NinetiesMusicCollection class accepts an index and returns the corresponding Album object. This method throws an IllegalArgumentException if the index is out of range. (This is the only exception you have to throw anywhere in your code.)In the NinetiesMusicCollection constructor, you can assume the ArrayList<Album> object passed as an argument is not null . Don’t worry about privacy leaks.Implement this set of classes in Java. Note the italics on the Class name “Album” and the method name “equipmentRequired” in the Album class.
Classes - Continued... Write a definition of a class and write a program that implements all the functionality of the class that has the following properties. The Main Program should invoke all functionality of this class, i.e., secretType. Input: from a file - the person's name and age and weight and height Output: The Original input and based on their BMI, their weight status. The name of the class is secretType. a. The class secretType has four member variables: name (a string), age and weight (int), height (double) b. The class secretType has the following member functions: (Make the accessor functions const) с. i. print – outputs the data in the member variables in a nicely formatted ii. setName - sets the name iii. setAge – sets the age iv. setWeight – sets the weight setHeight – sets the height V. vi. getName – value returning function returns the name vii. getAge – value returning function returns the age viii. getHeight – value returning function returns the height ix.…
1. Implement a Student class. a. Create a class Student with the following private data members: 1. name 2. exam_1 grade 3. exam_2 grade b. Create all appropriate accessor and mutator functions. c. Assign appropriate access modifiers to insure encapsulation. d. Add a private calcGPA() function that calculates and returns the GPA based upon the two exam grades. e. Add a public getGrade() function that: 1. Obtains the GPA from the private calcGPA() function. 2. Returns a letter grade based upon the numerical GPA value. 90 to 100 = A 80 to 90 = B 70 to 80 = C 60 to 70 = D 0 to 60 = F f. Test all functions from main. 2. Using the class from problem 1, replace main with the following: a. Implement a partially filled array of type Student named students of capacity 10. b. Implement a non-member addStudent() function that: 1. Creates a new student with data populated by input parameters. 2. Adds the new student to the students array. c. Implement a non-member output() function that: 1.…
Computer Science Exercise 1 (java)– Horses .Create a class Horse containing the attributes name, color and year of birth. Implement getters and setters for the member variables Implement a constructor Create the classes (a) Racehorse and (b) Workhorse. In the case (a), you must add field a field holding the number of races won. In the case (b), add a field that contains the number of years the horse has been working. Write the appropriate getters and setters. Test your classes
class A{}; class B{}; int main() { A obl,ob2; B ob3; ob3=ob2; } (a)Why does Overloading occur? Is there any error in this code section? If there is any, explain with reason.
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T/F1. However, implementation classes may be extended, but interface classes cannot.
Insert coding that make the seat cannot be book by other people if already reserved // create a CLASS public class DemoClass { public static void main(String [] args) { // create a OBJECT DemoClass dc = new DemoClass(); int isle= count['2B','5B','8B','11B','14B','5B','17B','20B','23B','26B','29B']; int window= count['3C','6B','9C','12C','15C','18C','21C','24C','27C','30']; int isle= count['1A','4A','7A','10A','13A','16A','19A','22A','25A','28A',]; stdout.writen("type of seat (Double/single)?:"); String?types-stdin.readLinesync(); if(types--'single') { System.out.println("single"); } else { else if(types--'Double') { stdout.wrilwln("chere(isle/window)?:"); String?hc-stdin.reixli inesysnc(); if(hc--'isle') { system.out.pritln("isle"); stdout.writeln("choose your seat?:"); String ? IsleSeat - stdin.readLineSync(); if(isleSeat -- isle) { isle.remove(IsleSeat); System.out.println("isle"); } } else if(BC -- 'window') { System.out.println("window"); } } } } } OUTPUT:
Software Requirements: • Latest version of NetBeans IDE • Java Development Kit (JDK) 8 Procedure: 1. our progras from rhFactor non-static and private. Remove the constructor with two (2) parameters. 2o upply uncapsutation Make bloodType and 2. The names of the public setter and getter methods should be: • setBloodType() • setRhFactor() getBlood Type() getRhFactor() 3. Use the setter methods to accept user input. 4. Display the values by calling the getter methods. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): B- is added to the blood bank.
Part 2. Library Class Implement a class, Library, as described in the class diagram below. Library must implement the Comparable interface. The compareTo() method must compare the branch names and only the branch names. The comparison must be case insensitive. The equals() method must compare the branch names and only the branch names. The comparison must be case insensitive. Be sure to test the equals() and compareTo() methods before proceeding. Library - state: String - branch: String - city: String - zip: String - county: String - int squareFeet: int - int hoursOpen: int - int weeksOpen: int + Library(state: String, branch: String, city: String, zip: String, county: String, squareFeet: int, hoursOpen: int, weeksOpen: int) + getState(): String + getBranch(): String + getCity(): String + getZip(): String + getCounty(): String + getSquareFeet(): int + getHoursOpen(): int + getWeeksOpen(): int + setState(state: String): void + setBranch(branch: String):void +…