Code a non default three-parameter constructor with parameters for unit code, credit hour and offer faculty. Instance variables that are not taking parameter must be auto-initiliased with sensible default value. The constructor must utilise appropriate naming conventions and they protect the integrity of the class's instance variables. answer in java and comment please

Code a non default three-parameter constructor with parameters for unit code, credit hour and offer faculty. Instance variables that are not taking parameter must be auto-initiliased with sensible default value. The constructor must utilise appropriate naming conventions and they protect the integrity of the class's instance variables. answer in java and comment please

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter10: Classes And Data Abstraction

Section: Chapter Questions

Problem 13SA

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If class A is a subclass of class B, then A has access to all of B's instance variables, including private ones. True False
Given the following class, I need help writing a constructor that initializes all instance variables using appropriate parameters. I need to make sure it enforces the preconditions public class BrowserTab {private String title;private int id;/*** Creates a BrowserTab* @precondition title != null && id >= 0*/}
(Java) Identify the true statements, select all that apply: -Setters and getters are not required for public instance variables -Every private instance variable in a class definition must have a mutator method -A getter method has the same return-type as the field it retriees and takes no paramaters -A setter method is a return-type void and takes a parameter of tehe same type as its field
Hi can you assist me on the problem below for a class and a test class that conforms to the following specifications: 1. The name of the class is RightTriangle 2. The class has member variables base and height 3. The class has a constructor that initializes base and height 4. The class has accessors and mutators for base and height 5. The class has a toString method that produces String representation of a RightTriangle like the following example for a triangle with base 12 and height 10. Base : 12 Height 10 6. The class has a method called findArea to compute the area of the right triangle. Here is a suggested implementation. public double findArea() { return 0.5* this.base*this.height; } 7. The class using proper naming conventions Write a test class called RightTriangleTest that conforms to the following: 1. Create an object with base = 10 and height = 20, for example myTriangle. 2. To print the toString for myTriangle. 3. To print the area of myTriangle. System.out.println(“The…
Write down code that can declare a class of an employee with the properties, name and salary, and the methods, getSalary and getName, that return the salary and name of the employee respectively. Function members should be declared as prototypes only andinclude a parameterised constructor prototype to initialise with the name and salary.
Consider a class BankAccount that has • Two attributes i.e. accountID and balance and• A function named balanceInquiry() to get information about the current amount in the account Derive two classes from the BankAccount class i.e. CurrentAccount and the SavingsAccount. Both classes (CurrentAccount and SavingsAccount) inherit all attributes/behaviors from the BankAccount class. In addition, followings are required to be the part of both classes• Appropriate constructors to initialize data fields of base class• A function named amountWithdrawn(amount) to withdraw certain amount while taken into account the following conditionso While withdrawing from current account, the minimum balance should not decrease Rs. 5000o While withdrawing from savings account, the minimum balance should not decrease Rs. 10,000• amountDeposit(amount) to deposit amount in the accountIn the main() function, create instances of derived classes (i.e. CurrentAccount and SavingsAccount) and invoke their respective…
All vehicles used for transportation in the U.S. must have identification, which varies according to the type of vehicle. For example, all automobiles have a unique Vehicle Identification Number (VIN) assigned by the manufacturer, plus a license plate number assigend by the state in which the auto is registerd. Modify the Auto class to include an instance variable for the license plate number. Implement the constructor so that an Auto can be constructed with a VIN and a license plate number. Override the getID() method to return the id of the auto as shown in this format: VIN=1234567890,plate=ABC123 (without any spaces). ** Represents an automobile.*/public class Auto // TODO: Inherit from Vehicle{ // TODO: Declare instance variables public Auto(String vin, String plate) { // TODO: Complete the constructor } // TODO: implement the getID() method for autos}
Implement the following concepts by constructing suitable classes in Java -a. Constructorsb. Constructor Overloadingc. Function Overloadingd. Function Overridinge. InheritanceCreate a class Person - Field - Name, Birthdate, Contact no and Mail idMethods - Constructor, accept and displayClass Employee - Inherits the Person classFields : Emp ID, grade, basic salary, Gross Salary, HRA (House Rent Allowance), TA (TravelingAllowance), DA (Dearness Allowance)Given:Grade Basic TAA 8000 2000B 7000 1500C 6000 1000D 5000 500Calculate Gross Salary :Gross Salary = Basic + HRA (20% of Basic) + DA (50% Basic) + TAe.g if Basic = 8000TA = 2000HRA = 20% of 8000 = 1600DA = 50 % of 8000 = 4000Gross = 8000 + 2000 + 1600 + 4000 = 15600Optional : you can implement increment function in which you can change grade of an employee andrecalculate salary with new grade
Q# Which of the following might have only method signatures? Group of answer choices 1. An interface 2. An abstract class and a concrete class 3. An abstract class 4. An interface and an abstract class 5. None of these, they all require the implementation. 6. A concrete class
What does the super keyword represents and where can it be used? Give an example of a superclass and subclass. Be sure to make all the instances variables of the super class private. Include at least one constructor in each class and ensure that the constructor of the subclass calls the constructor of the superclass. Also include a toString method in both classes that returns the values of the instance variables with appropriate labels. Ensure that the toString method of subclass calls the toString method of the superclass so that the string returned contains the values of all the inherited instance variables.
Consider the following program which contains a class definition currently missing one line of code: class Pokemon: def __init__(self, pokemon_name): ██████ pikachu_name = 'Pikachu' pikachu = Pokemon(pikachu_name) print(pikachu.name) Suppose that we want the constructor of this class to initially set the value of the instance variable name based on its arguments. This implies that the expected output of the program is 'Pikachu'. What should the missing line of code be? a. name = pokemon_name b. name = pikachu_name c. pikachu.name = pikachu_name d. self.name = pokemon_name e. pikachu.name = pokemon_name f. self.name = pikachu_name
This chapter uses the class rectangleType to illustrate how to overload the operators +, *, ==, !=, >>, and <<. In this exercise, first redefine the class rectangleType by declaring the instance variables as protected and then overload additional operators as defined in parts 1 to 3. Overload the pre- and post-increment and decrement operators to increment and decrement, respectively, the length and width of a rectangle by one unit. (Note that after decrementing the length and width, they must be positive.) Overload the binary operator – to subtract the dimensions of one rectangle from the corresponding dimensions of another rectangle. If the resulting dimensions are not positive, output an appropriate message and do not perform the operation. The operators == and != are overloaded by considering the lengths and widths of rectangles. Redefine the functions to overload the relational operator by considering the areas of rectangles as follows: Two rectangles are the…