Java allows implementing multiple interfaces through a single class declaration statement such as: public class Student implements Comparable, Cloneable{ //code goes here }
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Java allows implementing multiple interfaces through a single class declaration statement such as:
public class Student implements Comparable, Cloneable{
//code goes here
}
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- In Java programming (Lesson: Objects, Classes, and Constructors) Every class has a constructor and if we do not explicitly write a constructor for a class, the java compiler builds a default constructor for that class. False or True Please provide an explanation for the answer. Thank you!A Java class can contain Variables Methods, Constructors Inner Classes (A class inside another class) O All the aboveJava allows implementing multiple interfaces through a single class declaration statement such as: public class Student implements Comparable, Cloneable{ //code goes here } Select one: True False
- Create a class student and then create an object of this class and work with it. Idfirst namelast namegradesdate of birthfield of studyenrolled coursesenrolled semester using constructors, setters-getters in JAVA programmingID must be generatedT/F 3. Any Java class must have a main method, which is the first method that is called when the Java class is invoked.Polymorphism in Java is Select one: a.when a program uses several different types of objects, each with its own variable. b.when a single variable is used with several different types of related objects in a program. c.when a single parent class has many child classes The following code fragment is polymorphic: for(Shape shape : shapes) if(shape instanceof Circle) { Circle c = (Circle) shape; // cast to a circle c.draw(g); // call the circle's draw method } else if(shape instanceof Rect) { Rect r = (Rect) shape; r.draw(g); } True or False The following code fragment is polymorphic: for(Shape shape : shapes) shape.draw(g) True or False
- import java.util.Scanner; class BloodData//declraing BloodData class { //declaring required variables static String bloodType;//to store the blood type static String rhFactor;//to store Rhesus factor //default public constructor public BloodData() { //initializing bloodType to o and rhFactor to + bloodType="o"; rhFactor="+"; } //parameterized public constructor public BloodData(String bt,String rh) { //initializing bloodType with bt and rhFactor with rh bloodType=bt; rhFactor=rh; } //function to print bloodType and rhFactor public void display() { //printing the bloodType and rhFactor System.out.println(bloodType+rhFactor+" is added to the bloodbank.\n"); } }//end of class BloodData public class RunBloodData//declaring public class RunBloodData { public static void main(String[] args) { //creating object of Scanner class to take input Scanner sc=new…Static methods within a class are copied into each object created from the class. true or false javaDesign Patterns: Strategy Pattern : in Object Oriented design Programming Use Netbeans to execute the following Java code and show SCREENSHOTS to verify that the program runs correctly. Draw a UMl class diagram to model the program. Here is the java code: File : Billing.java public interface Billing { public double getDiscount();} File : LoyaltyBilling.java public class LoyaltyBilling implements Billing{ @Override public double getDiscount() { return 20.00; } } File : NormalBilling.java public class NormalBilling implements Billing{ @Override public double getDiscount() { return 0; } } File : SeasonalBilling.java public class SeasonalBilling implements Billing{ @Override public double getDiscount() { return 10; } } File :SaleBilling.java public class SaleBilling implements Billing{ @Override public double getDiscount() { return 50; } } File : Product.java public class Product { private String name; private…
- A class in Java may inherit only from one superclass, but may, in turn, have any number of subclasses. * O True O Falsejava languageCreate a class with following attributes: The car's make The car's model The car's year Now let's identify the class's methods. Specifically, the actions are: Constructor of Car class Set and get the car's make Set and get the car's model Set and get the car's year Now create few instance of the Car in a Test class. Use getter and setter to set the instance variables. Create a class with following attributes: The car's make The car's model The car's year Now let's identify the class's methods. Specifically, the actions are: Constructor of Car class Set and get the car's make Set and get the car's model Set and get the car's year Now create few instance of the Car in a Test class. Use getter and setter to set the instance variables.Java Programming Create your own class that illustrates the use of encapsulation. Make sure to include at least one setter and one getter for the class