Consider: interface I { } interface J { } } void doI(); class A implements I { } void doJ(); class B extends A { } public void doI() { } public void doJ() { } class C implements J { public void doJ() { } class D implements I, J { public void doI() { } public void doJ() { } } I i1= new B(); I i2= new D(); J j1 = new C(); Jj2 = new D(); Which of the following are valid?
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Answer:
We have explain which option is valid.
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- Write the definition of classes and interfaces in the given diagram using following details: a) Interface shape has a method draw(). b) Override the method draw() in all subclasses. c) Define a non-abstract method fillColor() in Circle class.public class OfferedCourse extends Course { // TODO: Declare private fields // TODO: Define mutator methods - // setInstructorName(), setLocation(), setClassTime() // TODO: Define accessor methods - // getInstructorName(), getLocation(), getClassTime() } import java.util.Scanner; public class CourseInformation { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); Course myCourse = new Course(); OfferedCourse myOfferedCourse = new OfferedCourse(); String courseNumber, courseTitle; String oCourseNumber, oCourseTitle, instructorName, location, classTime; courseNumber = scnr.nextLine(); courseTitle = scnr.nextLine(); oCourseNumber = scnr.nextLine(); oCourseTitle = scnr.nextLine(); instructorName = scnr.nextLine(); location = scnr.nextLine(); classTime = scnr.nextLine(); myCourse.setCourseNumber(courseNumber); myCourse.setCourseTitle(courseTitle);…Draw the UML diagram for the classes and its relationships for this code: import java.util.ArrayList;public class Main { public static void main(String[] args) {Market superMarket = new Market(10);}class Market { private ArrayList<String> fruits = new ArrayList<>(); private int fruitsNumber; public Market(int fruitsNumber) { if (fruitsNumber > 0) { this.fruitsNumber = fruitsNumber; }else { throw new IllegalArgumentException("This argument is not valid"); } } private synchronized boolean isFull() { return fruits.size() == this.fruitsNumber; } private synchronized boolean isEmpty() { return fruits.isEmpty(); } public synchronized void farmer(String fruit) { if (isFull()) { System.out.println("We can not accept more fruites at the moment !!"); try { wait(); }catch (InterruptedException e) { System.out.println("Interruption"); } } fruits.add(fruit); System.out.printf("fruit : %s is added !!!%n", fruit); }…
- Question Kh Write the definition of classes and interfaces in the given diagram using following details: a) Interface shape has a method draw(). b) Override the method draw() in all subclasses. c) Define a non-abstract method fillColor() in Circle class. Full explain this question very fast solution sent me step by step Don't ignore any part all part work uGiven the following interfaces: public interface Inter1 { public abstract void m10; public abstract void m20; public interface Inter2 extends Inter1 { public abstract void m30; public interface Inter3 extends Inter1 { public abstract void m40; If you are asked to define a concrete class called Main that implements Inter3, what are the methods that have to be overridden: m1 m1, m2 m1, m2, m3 Activate Windows Go to Settings to activate W m1, m2, m412.25 The following binary counter increments on each rising clock edge unless the exter- nal clear (ClrN) control input is low. (a) Implement a modulo 12 counter using this binary counter assuming the Clr con- trol input is a synchronous control input. (b) Repeat part (a) assuming Clr is an asynchronous control input. ClrN dClr 4-Bit Counter CLK
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- Please define two interface Auto and Sprinkler, and three classes Car, Truck and FireTruck. Car and Truck are going to implement Auto. Fi reTruck is going to extend Truck, and implement Sprinkler. interface Auto { public abstract void move(); public abstract void stop(); public abstract void dudu(); interface Sprinkler { } public abstract void watering(); public class Main { public static void main(String args[]) { Car car= new Car(); } car.move(); car.dudu(); car.stop(); FireTruck firetruck = new FireTruck(); firetruck.move(); firetruck.dudu(); firetruck.stop(); firetruck.watering();methode code below abstract class Method { // declaration of variables protected int input; protected String output; // Abstract methods public abstract boolean isHard(); public abstract String specificWay(); public abstract void Method(); public abstract void Method(int input, String output); // Getter methods for the input field public int getInput() { return this.input; } // Setter methods for the input field public void setInput(int input) { this.input = input; } // Getter methods for the output field public String getOutput() { return this.output; } // Setter methods for the output field public void setOutput(String output) { this.output = output; } // Custom string representation of the object public String toString() { return "Method"; }}Java prgm based