Create a base class with two methods. In the first method, call the second method. Inherit a class and override the second method.
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Create a base class with two methods. In the first method, call the
second method. Inherit a class and override the second method.
Create an object of the derived class, upcast it to the base type, and
call the first method. Explain what happens.
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- Define a class Job which has three property (name, salary, description) and two behavior (getSalary, getLengthOfName) 1- Write two constructor method for the following class? 2- Implement following interface?Create a base class with an abstract print( ) method that isoverridden in a derived class. The overridden version of themethod prints the value of an int variable defined in the derivedclass. At the point of definition of this variable, give it a nonzerovalue. In the base-class constructor, call this method. In main( ),create an object of the derived type, and then call its print( )method. Explain the results. (JAVA) Also provide clear output screenshots pleaseWrite a class named Employee which implements Comparable Interface with name and salary as data field. Add a constructor with argument name and salary. Add getter and Setter for name and salary. Add CompareTo() method for the data Name. Write a class named Manager which inherits the Employee class. Add an instance variable, named department, of type String. Add a constructor in the subclass class with arguments name, salary, department and a toString() method that prints the manager’s name, department, and salary [Hint: Add a toString( ) method in the super class as well] Create 3 objects of Manager with following arguments 1. (Zayed, 500), 2. ( Ahmed, 700) 3. ( Faisal, 600) Create an Array object Add the above 3 objects into an Array object and Sort by Name and Display Create an object Employee class with argument (Zayed, 500, IT) Display the 1. Name 2. Salary 3. Department by using tostring() method.
- Write a class named Employee which implements Comparable Interface with name and salary as data fields Add a constructor with argument name and salary. Add getter and Setter for name and salary. Add CompareTo() method for the data Salary. Write a class named Manager which inherits the Employee class. Add an instance variable, named department, of type String. Add a constructor in the subclass class with arguments name, salary, department and a toString() method that prints the manager’s name, department, and salary [Hint: Add a toString( ) method in the super class as well] Create 3 objects of Manager with following arguments 1. (Zayed, 500), 2. ( Ahmed, 700) 3. ( Faisal, 600) Add the above 3 objects into an ArrayLIst object and Sort by Salary and Display. Create an object Employee class with (Zayed, 500,IT) and display the 1. Name 2. Salary 3. Department by using tostring() method.Assume B is a subclass of A. Which of the statements about the following assignment is false? A a = new B(); We can assign anything to variable a that has a subtype of B. We can call on a any method defined in A. We can call on a any method defined in B. We can assign anything to variable a that has a subtype of A.Which class can access all public and protected methods and fields of its super class?
- Answer with True or False for the following. Explain your answers.-It is legal to write a method in a class which overloads another method declared in the same.-It is legal to write a method in a superclass which overrides a method declared in a sub-class.Write a java program Write a class named Employee with name and salary as private data fields. Add a constructor with both parameters. Write a class named Manager which unherits the Employee class. Add an instance variable, named department, of type String and 15 private. Add a constructor in the subclass class and a toString () method that prints the manager's name, department, and salary [Hint: Add a tastanel) method in the super class as well]. Create objects of Manager and Employee dassIs this statement true or false? The fields, attributes, and methods of the derived class are passed down to the base class.
- What is true about private fields of a class? They must be used with private methods. They are accessible from anywhere inside or outside of a class. They can never be used in a class. They can be accessed only by methods inside the class they are associated with. Which of these keywords is used to refer to a member of a base class from a subclass? power super this upper Which of the following is true about abstract classes? Note that if a class can be sub-classed, this simply means that it can be derived from. Abstract classes can only contain abstract methods. They cannot be sub-classed. Abstract classes cannot be instantiated, but they can be sub-classed. Abstract classes can only contain abstract methods. They can be sub-classed. Abstract classes can be instantiated, but they cannot be sub-classed.What is an abstract class? Choose only one option.(a) An object(b) A class with no methods.(c) A class with no concrete subclasses.(d) A class with at least one undefined message.(e) An interface.When would you be most likely to use an abstract class? when you need to derive a class from Object when every method in the class is concrete when you need a super class that should not be instantiated when you need a super class that can be instantiated alongside the derived classes =========== Which UML symbol represents aggregation? a filled triangle an unfilled diamond an unfilled triangle a filled diamond