To create a subclass, you use the implements keyword after the class name. O True False
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A: Correct Option: The compiler generates a default constructor.
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A: True
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A: Note: As no programming language is mentioned. So I am using Java programming language.
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A: Answer: UML Diagram:
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A: To be determine: Fill the void
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A: Give: A class may have several constructors and it is called __________.
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A: Option 1: Inheritance
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A: This involves the concept of Inheritance in object oriented programming.
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A: Let us see the answer,
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- super is a special keyword that directs the compiler to invoke the superclass methods.Java A class always has a constructor that does not take any parameters even if there are other constructors in the class that take parameters. Choose one of the options:TrueFalseYou cannot use the isinstance function to determine whether an object is an instance of a subclass of a class.True or False
- in c# i need to Create a BankAccount class with the following properties: Account Number (string)Account Holder Name (string)Balance (double)Account Type (enum: Savings, Current)Create the following methods in the BankAccount class: Deposit(double amount): Method to deposit money into the accountWithdraw(double amount): Method to withdraw money from the accountCheckBalance(): Method to check the current balance of the account I am getting a error in pic my code is // Define an enumeration type for bank account typespublic enum AccountType{ Savings, Current} // Define a class for bank accountspublic class BankAccount{ // Properties for the account number, account holder name, balance and account type public string AccountNumber { get; set; } public string AccountHolderName { get; set; } public double Balance { get; set; } public AccountType AccountType { get; set; } // Method to deposit money into the account public void Deposit(double amount) {…Design/code/test a Java program containing an abstract the class absWelcome. This class should contain: 1. A public abstract void method (you name it) that is empty 2. A public regular method (you name it) that prints "Welcome to " Next, create a subclass clsHello that extends absWelcome. This class should contain: • A public regular method (you name it) that prints "Java Programming" Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new object reference to: 1. Output "Welcome to " from the abstract class 2. Output "Java Programming" from the subclass Your output should resemble that shown below >sh -c javac -classpath -type f-name '*.java') java -classpath :targe Welcome to Java Programmingin java Design a Ship class that has the following members: A member variable for the name of the ship (a string) A member variable for the year that the ship was built (a string) A default and parameterized constructor and appropriate getters and setters. A toString method that displays the ship’s name and the year it was built. Design a CruiseShip class that is derived from the Ship class. The CruiseShip class should have the following members: A member variable for the maximum number of passengers (an int) A default and parameterized constructor and appropriate getters and setters. A toString method that overrides the toString function in the base class. The CruiseShip class’s toString function should display only the ship’s name and the maximum number of passengers. Design a CargoShip class that is derived from the Ship class. The CargoShip class should have the following members: A member variable for the cargo capacity in tonnage (an int). A default and parameterized…
- in C# i need to Create a BankAccount class with the following properties: Account Number (string) Account Holder Name (string) Balance (double) Account Type (enum: Savings, Current) Create the following methods in the BankAccount class: Deposit(double amount): Method to deposit money into the account Withdraw(double amount): Method to withdraw money from the account CheckBalance(): Method to check the current balance of the account Create a Bank class with the following properties: List of bank accounts (List<BankAccount>) Create the following methods in the Bank class: AddAccount(BankAccount account): Method to add a new bank account to the list of accounts RemoveAccount(string accountNumber): Method to remove an existing bank account from the list of accounts SearchAccount(string accountNumber): Method to search for an existing bank account and return the account details Create a Program class with the Main method, and implement the following functionality:…variables are variables that have the same name as variables that have been declared in a superclass and are declared in a subclass, respectively.in C# languageDesign a Book class that holds the title, author’s name, and price of the book. Books’s constructor shouldinitialize all of these data members except the price which is set to 500/-. Create a display method thatdisplays all fields.All Books are priced at 500/- unless they are PopularBooks. The PopularBooks subclass replaces theBookprice and sets each Book’s price to 50,000/- through PopularBooks construcor. Override the displaymethod to display all fields.Write a Main () method that declares an array of five Book objects. Ask the user to enter the title andauthor for each of the 5 Books. Consider the Book to be a PopularBook if the author is one of the following:Khaled Hosseini, Oscar Wilde, or Rembrandt. Display the five Books’ details.