In java an interface with no fields or methods is known as a ______. A. Runnable Interface B. Marker Interface C. Abstract Interface D. CharSequence Interface
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In java an interface with no fields or methods is known as a ______.
A. Runnable Interface
B. Marker Interface
C. Abstract Interface
D. CharSequence Interface
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- Create an application named TurningDemo that creates instances of four classes: Page, Corner, Pancake, and Leaf. Create an interface named ITurnable that contains a single method named Turn The classes named Page, Corner, Pancake, and Leaf implement ITurnable. Create each classs Turn() method to display an appropriate message. For example, the pages Turn() method might display You turn a page in a book.JAVA PROGRAMMING LANGUAGE interface IResit { int number = 3; char iChar = ‘#’; } interface IShape extends IResit { public void drawShape ( ); // this method supposed to draw shapes with interface data as below: /* # ## ### ## # */ } interface IBilgi { public void myShape(char myChar); // this method supposed to draw shapes as below // if , myChar = ‘*’ /* #* ## ###* ## #* */ } // note the “#” character comes from interface // end of the interface…. /* Write a class that implements interfaces given above. Your class should: 1. Have three constructors Default constructor: it doesn’t take any parameter and necessary variables will be initialized by interface data.Overloaded Constructor: takes one integer parameter, supposed to initialize the “number” variableOverloaded Constructor: takes two parameters to initialize “number” and “iChar”variables 2. Create three different objects from three different constructors and test all methods given in interfaces 3. Your code should throw…In JavaScript, how are an object and an interface related to each other? a. The object’s interface consists of the code and data needed for that object. b. An object’s interface is analogous to a pocket calculator’s inner workings. c. Built-in JavaScript objects do not require an interface, but custom objects do. d. An interface allows another program to access an object’s properties and methods.
- Write a program using java programing language. Write a Java class (called ShowNum) that displays the same number of asterisks (row and columns) as is input in 2 numbers. Your class should have a default constructor (number1 is 0, number2 is 0) and another constructor that inputs 2 numbers (integers). You'll need accessor methods for the numbers and a display method that displays as follows: Input: 2, 7 ******* ******* Demo the class in a client (called ShowNumClient) that allows the user to run the program as many times as they want (enter number and use display method). The user will signal with a sentinel (-1), when they want to terminate the client. Make sure that each number entered in the client is between 1 and 30.What is wrong with the following interface? public interface SomethingIsWrong { void aMethod(int aValue){ System.out.println("Hi Mom"); } } Fix the interface in the questionImplement a class called Account which defines a modified banking account that can be created with a given balance and account name. It must be able to perform the following operations in the public interface: - Accepts an amount to deposit the balance - Withdraws an amount from the balance - Returns its balance - Returns its name - Displays its name and balance Write a Java application called AccountSystem to simulate an instance of the class. You need to use deposit and withdrawal methods in this program. USING INTELLIJ IDEA COMMUNITY
- Design an interface named Swimmer with a void method named howToSwim (). Every class of aswimmer object must implement the Swimmer interface. Design a class named Fish. Write an equalsmethod for the Fish class; have it override the Object equals method. Two Fish are equal if they havethe same values of the instance variables vertabrates (a Boolean) and edible (a String).Design a class named Goldfish that extends Fish and implements Swimmer. Implement howToSwimto display the message It is swimming. Then design a class named Comet that extends Fish andimplements Swimmer. Implement howToSwim to display the message “It is swimming”.Draw a UML diagram that involves Swimmer, Goldfish, Comet and Fish. Write a testprogram that creates an array of five Fish objects. For each object in the array, display the result ofequals method with another object of the same array and invoke its howToSwim method if it isswimmer.Implement a class called Account which defines a modified banking account that can be created with a given balance and account name. It must be able to perform the following operations in the public interface: - Accepts an amount to deposit the balance - Withdraws an amount from the balance - Returns its balance - Returns its name - Displays its name and balance Write a Java application called AccountSystem to simulate an instance of the class. You need to use deposit and withdrawal methods in this program.Create a Java Project called “InterfaceDemo” and do the following:• Lecture slides show an example of Edible Interface. Create the same interface inside your Java Project. • Additionally create a default method of your choice to the “Edible” interface.• Create a Java class called “Vegetable” and two child classes for this class– “Broccoli” and “Potato” inside this class.• Implement the “Edible” interface for the parent class “Vegetable” and then implement the interface methods accordingly.• Create an object for each of the classes and call the interface method using the objects respectivel
- JavaProgramming 3.a. Create a class named Circle with fields named radius, area and diameter. Include methods names setRadius(), getRadius(), computeDiameter() which computes a circles’s diameter and computeArea which computes a circle’s area. The diameter of a circle is twice its radius and the area is 3.14 multiplied by the square of the radius. b. Create a class named TestCircle whose main() declares three Circle objects. Using the setRadius() method, assign one circle a small radius value. Assign another circle a larger radius value and assign the third circle a radius of 1. Call computeDiameter() and computeArea() for each circle and display the results.Define an interface as follows: Interface Bicycle { // wheel revolutions per minute void changeCadence(int newValue); //will change value of candence to new value void changeGear (int newValue); changes gear of car void speedUp(int increment); //increments speed of car by adding new Value to existing speed void applyBrakes(int decrement); }//decease car speed by subtracting value from speed. To implement this interface, the name of your class would change (to a particular brand of bicycle, for example, such as ACMEBicycle, KEYOBicycle), and you'd use the implements keyword in the class declaration: class ACMEBicycle implements Bicycle{ int cadence = 0; int speed = 0; int gear = 1; //methods of interface } These clases will implements the abstract method of interface and provide definitions according to them. Now in main class you will ask user what kind of bicycle he/she wants create object of that class, then asks user for options 1. Change cadence 2. Change gear 3. Speed…In Java: Create a class called Date that includes three instance variables-a month (type int), a day (type int) and a year (type int). Provide a constructor that initializes the three instance variables and assumes that the values provided are correct. Provide a set and a get method for each instance variable. Provide a method displayDate that displays the month, day and year separated by forward slashes (/). Add a main method to the class that demonstrates class Date's capabilities.
