public class ClassA { public void methodOne(int i) { } public void methodTwo(int i) { } public static void methodThree(int i) { } public static void methodFour(int i) { } } public class ClassB extends ClassA { public static void methodOne(int i) { } public void methodTwo(int i) { } public void methodThree(int i) { } public static void methodFour(int i) { } } a. Which method overrides a method in the superclass? b. Which method hides a method in the superclass? c. What do the other methods do?
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- Complete the partial declaration of Class Car: public class Car { // declare three private instance variables: color, speed, model // define a constructor with two parameters: c , m which will assign values to color and model. //define set and get method for all instance variables //define a method named calspeed( ) with int return type, the method will increase the speed by 50 mile per hour. } Complete the application below. public class CarApp { public static void main() { string color = blue; string model = C2021;i int speed = 80; // declare necessary object matching to the constructor definition // display the color and model on the screen // call the calspeed( ) method and display the new speed after calculation. } }In Java: Implementing a Superclass Employee Part 1: Implement a superclass Employee that has the following fields and methods. Fields: string firstName string lastName int employeeID double salary Methods: constructor method - initialize salary field to zero. setters and getters for firstName, lastName, and employeeID employee Summary method - prints all account attributes Part 2: Implement a Manager class that inherits from the Employee class. Fields: string department a Methods: employeeSummary method - prints all superclass and subclass attributes Ensure that your program has the two required classes and a test class.write the definition of a class Counter containing: an instance variable named counter of type int a constructor that takes one int arguement and assigns its value to counter a method named increment that adds one to counter. it does not take parametes or return a value a method named decrement that subtracts one from counter. it does not take parameters or return a value a method named get_value of the instance variable counter write the definition of a class counter containing: an instance variable named counter of type int a constructor that assigns 0 to counter a method named increment that adds one to counter. it does not take parametes or return a value a method named decrement that subtracts one from counter. it does not take parameters or return a value a method named get_value of the instance variable counter using python
- write the definition of a class Counter containing: an instance variable named counter of type int a constructor that takes one int arguement and assigns its value to counter a method named increment that adds one to counter. it does not take parametes or return a value a method named decrement that subtracts one from counter. it does not take parameters or return a value a method named get_value of the instance variable counter write the definition of a class counter containing: an instance variable named counter of type int a constructor that assigns 0 to counter a method named increment that adds one to counter. it does not take parametes or return a value a method named decrement that subtracts one from counter. it does not take parameters or return a value a method named get_value of the instance variable counter The second question asks for "a class named Counter that inherits from dict from the previous question" using pythonDefine a class method (static) named compare to the Fraction class. The compare method accepts two Fraction objects f1 and f2. The method returns -1 if f1 is less than f2 O if f1 is equal to f2 +1 if f1 is greater than f2 in javaWrite the Circle class:• A Circle has a radius– Add instance variable– 2 constructors – one should be the default or no args– Add accessor and mutator method for each instance variable– Add methods to calculate Area, Perimeter, and Diameter– Write a printArea method in the main program which receives an object circleand “times” integer– printArea() will print the radius and area of objects “times” time by changingthe radius of object.public static void printAreas(Circle c, int times) {System.out.println("Radius \t\t Area");while (times>=1) {//print the radius and area here// create a new object by changing the radius heretimes--;}}//end of printAreas
- Explain........... A method defined within a class and whose header does NOT include the static modifier is known as which of the following? a class method b instance method c super method d private method e public methodJava programming. A method signature for a method consists of all elements of the method except the body. That is, a method signature consists of the privacy, (non-)static, return datatype, method name, and formal parameters. Consider the ceiling method as an example. public static int ceiling (double num) { return num <= 0 ? (int) num: (int) num + 1; } The method signature of the ceiling method is the first line of the method: public static int ceiling (double num). In this example, we note that ceiling is static because it is a standalone method and does not require an object to invoke (since we are not acting on an instance of a class). For parts a - d, give the method signature described by the scenario. a) A method in class String that returns the reversed version of the current String. b) A method that returns the maximum of two given integers. c) A method that returns true or false if the input integer is an even number. d) A default constructor for class Table.Given the method listed below: B Foo(B x){return x;} Which of the below statements are correct? Foo takes 1 argument Foo takes 2 argument Foo is a class B is a class B is a method Foo takes as argument any subclass of B Foo returns a value of class B If the argument x is of class D which is a subclass of B, Foo returns a value of class B If the argument x is of class D which is a subclass of B, Foo returns a value of class D If the argument x is of class D which is a subclass of B, there will be a type check error
- Extend the ItemToPurchase class per the following specifications: Private fields string itemDescription - Initialized in default constructor to "none" Parameterized constructor to assign item name, item description, item price, and item quantity (default values of 0) Public member methods setDescription() mutator & getDescription() accessor printItemCost() - Outputs the item name followed by the quantity, price, and subtotal printItemDescription() - Outputs the item name and description Ex. of printItemCost() output: Bottled Water 10 @ $1 = $10 Ex. of printItemDescription() output: Bottled Water: Deer Park, 12 oz.Java program Make a class Employee with a name and salary. Make a class Manager inherit from Employee. Add an instance variable, named department, of type String. Supply a method toString that prints the manager’s name, department, and salary. Make a class Executive inherit from Manager. Supply appropriate toString methods for all classes. Supply a test program that tests these classes and methods.Match the following: A class that contains no methods (other than constructors) that change any of the data in its object modifier means that there are no restrictions on where an instance variable or method can be used hiding implementation details is done by marking data and methods as When we call a method in Java using class type parameters Overloading is achieved when two or more methods in the same class have the same…