To create a subclass, you use the implements keyword after the class name. O True False
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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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- Assume that you have created a class named MyClass. The header of the MyClass constructor can be ____________. public MyClass() public MyClass (double d) Either of these can be the constructor header. Neither of these can be the constructor header.Encircle/ write down the correct/missing code.Elaborate if needed by writing a comment. //this is a subclass of superclass Teacher public class ScienceTeacher { Public final boolean ScienceMajor; Science (String ScienceMajor, String name, String age){ this.ScienceMajor= ScienceMajor; super(name, age); } }super is a special keyword that directs the compiler to invoke the superclass methods.
- variables are variables that have the same name as variables that have been declared in a superclass and are declared in a subclass, respectively.Question - Create a class named Pizza with the following data fields: description - of type String price - of type double The description stores the type of pizza (such as sausage and onion). Include a constructor that requires arguments for both fields and a method named display to display the data. For example, if the description is 'sausage and onion' and the price is '14.99', the display method should output: sausage and onion pizza Price: $14.99 Create a subclass named DeliveryPizza that inherits from Pizza but adds the following data fields: deliveryFee - of type double address - of type String The description, price, and delivery address are required as arguments to the constructor. The delivery fee is $3 if the pizza ordered costs more than $15; otherwise it is $5. Code that is not accepted - class DeliveryPizza extends Pizza { private double deliveryFee; private String address; public DeliveryPizza(String desc, double price, double deliveryFee, String address){…(java) The Painting Subclass Write class as follows: The class is named Painting, and it inherits from the Art class. It has a private String member variable named medium It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to year, and "No medium" to the medium variable. This default constructor calls the four-argument constructor. It has a four-argument constructor to assign values to the name, artist, year, and medium variables. It has a getter and settersfor the medium variable. It has a toString() method This class contains no other methods Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top. Make sure to write a Javadoc comment for each of these methods.
- This is the question - Create a class named Pizza with the following data fields: description - of type String price - of type double The description stores the type of pizza (such as sausage and onion). Include a constructor that requires arguments for both fields and a method named display to display the data. For example, if the description is 'sausage and onion' and the price is '14.99', the display method should output: sausage and onion pizza Price: $14.99 Create a subclass named DeliveryPizza that inherits from Pizza but adds the following data fields: deliveryFee - of type double address - of type String The description, price, and delivery address are required as arguments to the constructor. The delivery fee is $3 if the pizza ordered costs more than $15; otherwise it is $5. This is the code I have it won't accept - class DeliveryPizza extends Pizza { private double deliveryFee; private String address; public DeliveryPizza(String desc, double price, double deliveryFee,…This is the question - Create a class named Pizza with the following data fields: description - of type String price - of type double The description stores the type of pizza (such as sausage and onion). Include a constructor that requires arguments for both fields and a method named display to display the data. For example, if the description is 'sausage and onion' and the price is '14.99', the display method should output: sausage and onion pizza Price: $14.99 Create a subclass named DeliveryPizza that inherits from Pizza but adds the following data fields: deliveryFee - of type double address - of type String The description, price, and delivery address are required as arguments to the constructor. The delivery fee is $3 if the pizza ordered costs more than $15; otherwise it is $5. This is the code I have but the program does not like what I have especially the display parts- public class DeliveryPizza extends Pizza { private double deliveryFee; private String address;…Inheritance Create a base class called Shape with two final variables: PI and shapeType. PI should be set to 3.14159 and shapeType should be a String that indicates the type of shape. Create a subclass called Circle that extends Shape. Circle should have an instance variable called radius and a constructor that initializes radius. Override the toString() method to display the details of the circle, including its shape type, radius, and area. Create another subclass called Rectangle that extends Shape. Rectangle should have two instance variables called length and width, and a constructor that initializes length and width. Override the toString() method to display the details of the rectangle, including its shape type, length, width, and area. In the main method, create objects of Circle and Rectangle and call their toString() methods to demonstrate inheritance and the use of final variables.
- When a variable declared in a subclass has the same name as a variable declared in a superclass, it is called a _______________ variable.(Java) The Sculpture Subclass Write class as follows: The class is named Sculpture, and it inherits from the Painting class. It has a private boolean member variable named humanForm It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to the year, "No medium" to the medium, and false to the humanForm variable. This default constructor calls the five argument constructor. It has a five-argument constructor to assign values to the name, artist, year, medium, and humanForm variables. It has a getter and setter for the humanForm variable. It has a toString() method. This class contains no other methods Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top. Make sure to write a Javadoc comment for each of these methods.-------Answer code question below--------- Create a class Student with the following characteristics Implements Cloneable interface. Contain two member variables RollNo & Name. Initialize member variable of using the parameterized (2 parameters) constructor. Implement getRollNo and getName methods which returns respective variable values. Input: PGMCA2017 Amit where, The first line contains RollNo. The second line contains Name. Output PGMCA2017 Amit solution.java code below:
