rentiate between early binding and late binding. (Write in maximum 5 lines) [5 Marks] b. Write a Java operator/keyword, which can be used to
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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:
a. What is the concept of binding? Differentiate between early binding and late binding. (Write in
maximum 5 lines) [5 Marks]
b. Write a Java operator/keyword, which can be used to check the validity of reference before attempting
down-casting from superclass object to subclass reference. Given an example of it usage. (Write in
maximum 5 lines)
Step by step
Solved in 2 steps
- (b) Describe Dynamic Binding as related to Class loading? (c) What is the role of a class loader?What is the concept of binding? Differentiate between early binding and late binding. (Write in maximum 5 lines) Write a Java operator/keyword, which can be used to check the validity of reference before attempting down-casting from superclass object to subclass reference. Given an example of it usage. (Write in maximum 5 lines) Assume you have a method expecting the superclass's object to be passed as an argument. In this case, if you give it an object of subclass rather than superclass. Is it acceptable? Why or why not? (Write in maximum 5 lines) Which of the following assignments in FruitDriver class are valid or invalid. Give a reason for each. class Fruit {} class Apple extends Fruit {} class Orange extends Fruit {} public class FruitDriver { public static void main(String[] args) { Fruit f= new Fruit(); Orange o= new Orange(); Apple a= new Apple(); o=f; //a f=o; //b a=o; //c o=a;…What is the concept of binding? Differentiate between early binding and late binding. (Write in maximum 5 lines) Write a Java operator/keyword, which can be used to check the validity of reference before attempting down-casting from superclass object to subclass reference. Given an example of it usage. (Write in maximum 5 lines)
- 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…Kindly Solve this C++ question as per the instructions. Thank you for your help! Instructions: 1- Put the class definition in Flight.h and the implementation of the constructors and functions in Flight.cpp Implement the Flight.h and Flight.cpp so that class Flight contains: 4 private instance variables: Name of data type string, which describe the three electric vehicle charger types (AC975, DL521, and AC863). Destination of data type string that shows the final destination of that flight. Hour and Minute of data type int that show the departure time. A default constructor which sets all of the numeric instance variables to zero and the String instance variables to null. A constructor with 4 parameters that sets the 4 instance variables to the corresponding values passed. Implement an accessor method for each information (Flight name, Flight destination, and Flight Time) that will return the value of the instance variable. For example, the getX() method for the instance variables…hi it's been 6 days now I still haven't got an answer to the previous question which is: ("Hi, can you include all OOP concepts (Encapsulation, Inheritance, Abstraction, Polymorphism) and also include Exception handling?")
- In your own words, please illustrate the terms "nonconverting type casts," "type conversion," and "type coercion."?13) What is the purpose of polymorphism in Java? To provide encapsulation of data and methods To allow objects of different classes to be treated as if they are of the same class To define behavior of a class To provide access to interface methods 14) True or False Polymorphism allows objects of different classes to be treated as if they were of the same class.Assume that you are working in a well reputed software house. You are working in a way that you evaluate the assertions after the method completes. You are supposed to specify that what elements are involved in such a kind of assertion. Determine and discuss what kind of assert expression is it. What is guaranteed by this particular expression and what happens in case it violates? Provide sample code in java if needed.
- Practice overriding. In a main, build an object of that class, and print out the object using System.out.println(). Notice that this simply reports the memory address of the object in question, and we’d like to do something more useful. To replace (or override) the toString (or equals) function. We build another toString function to override the other one that also prints out the make, model, and odometer reading for a vehicle object. Reuse your Car class in the last exercise. public class Car { //instance variables private int odometer; private String make; private String model; //overloading //constructors public Car(int odometer,String make, String model) { this.odometer = odometer; this.make = make; this.model = model; } public Car(String make, String model) { this.make = make; this.model = model; } public Car(String make) { this.make = make; } /* *getter & setter methods */…5. Is it compulsory for a class, which has been declared as abstract, to have at least one abstract method?1. If a class declaration does not specify extends and a class name to the right of the new class name, the new class does not extend an existing class. Is it True or False? 2. The catch keywords must be used to handle the exception thrown by try block in some rational manners. True or False? 3. A very important fact to remember is that Java does not support multiple inheritance. True or False?