The first step in RMI is to write and compile the Java code for the service interface. The Calculator interface defines all of the remote features offered by the service. The code below shows the interface of a calculator. Write the implementation for the remote service by using the class name CalculatorImpl. public interface Calculator           extends java.rmi.Remote {     public long add(long a, long b)         throws java.rmi.RemoteException;      public long sub(long a, long b)         throws java.rmi.RemoteException;      public long mul(long a, long b)         throws java.rmi.RemoteException;      public long div(long a, long b)         throws java.rmi.RemoteException; }  *Give the screenshot of the output

FOR JAVA 1. Implement the following interfaces and classes in Java. Vehicle interface that has has the following methods: – int maxSpeed(); – int minSpeed(); – int orderInRightOfWay(); MotorVehicle interface which extends the Vehicle interface and has the following additional method: – void checkEngine(); HorseCart class which implements the Vehicle interface. Automobile class which implements the MotorVehicle interface. 2. Create a Test class, in the main method create at least one instance of Automobile and HorseCart classes. Print their max and min speeds, order in right of way, and Automobile’s engine check.

Design ADT for a cave and a cave system. An archeologist should be able to add a newly discovered cave to a cave system and to connect two caves together by a tunnel. Duplicate caves—based on GPS coordinates—are not permitted. Archeologists should also be able to list the caves in a given cave system. Specify each ADT operation by stating its purpose, describing its parameters, and writing a pseudocode version of its header. Then Java interface for a cave's methods and one for the methods of a cave system. Include javadoc-style comments in your code. Java program

Java programming language I need the two classes ( the testing class and the class with the methods) to be combined into one class. This is the program: import java.util.Scanner; //The Temperature Class Begins Here public class Temperature {    private double ftemp; //The constructor    public Temperature(double ftemp) {        this.ftemp = ftemp;    } //Get farenheit Method    public double getFtemp() {        return ftemp;    } //Set farenheit method    public void setFtemp(double ftemp) {        this.ftemp = ftemp;    } // Get Celcius Method    public double getCelcius(double ftemp){        //double celcius =  (double) (5/9) * (ftemp - 32);        double   celcius = (ftemp-32)* (double)5/9;        return celcius;    } // Get Kelvin Method    public double getKelving(double ftemp){        double Kelvin;        Kelvin = (ftemp-32)*(double)5/9 + 273.15;        return Kelvin;    } } //The Temperature Class Ends Here //The Temperature Test Class with a main method begins Here class…

3. The interface Range is defined below:public interface Range{ void setLimits(int x, int y); int getNumber();} Implementations of Range should exhibit the following behaviour:• The setLimits method should store its parameter values somewhere to serve as the lower and upper limits of the range appropriately.• A call to getValue should return an integer that is always greater than or equal to the lower limit and less than or equal to the upper limit.The class RandomInteger is an implementation of the interface Range. It also has the following features:• It has two fields of int type, low and high, to record the lower and upper limits of the range, respectively.• It has single constructor method that takes two integers and stores them in the appropriate fields. Note: You should make use of the setLimits method.• A call to the method getNumber should return a random number that is always within the range, i.e. greater than or equal to the lower limit and less than or equal to the upper…

CS Java Program (NEED HELP WITH THE ACTUAL CODING PART): For this project, you will create an application for a zoo. You will need to create a class that implements the iAnimal interface (provided below), and use one other class for an additional animal that implements the iAnimal interface as well (provided below). Modify the animal classes that you will use for this project so they implement Java’s comparable or comparator interface. You will also need a Main Class that will provide a user interface for this application. This can be a console-based interface. Tasks can be performed in one or more methods as needed. The Main Class should have one or more methods that handle these tasks: Create a new instance (object) of each of the animal classes and pass the user input as arguments to the object's mutator methods to set the private instance data for the appropriate animal class. Create an ArrayList of type iAnimal and add the new instance created in task 1 to the ArrayList. Before…

Create a Lockable Java interface with the following methods: setKey, lock, unlock, and locked. The setKey, lock, and unlock methods all accept an integer parameter representing the key. The key is created using the setKey method. The lock and unlock methods lock and unlock the object, but only if the key supplied is valid. The locked method returns a boolean indicating whether the object is locked or not. A Lockable object is one whose normal methods are protected: The methods cannot be invoked if the object is locked; they may be invoked if it is unlocked. Redesign and construct a Lockable version of the Coin class from Chapter 5.

Design the Java package named as mypack which has following classes andinterface:Create an Interface ArithmeticOp. The interface ArithmeticOp has followingmembers: float addition(float a, float b) - add a and b variables float subtraction(float a, float b) - subtract a and b variables. float divide(float a, float b) - divide a and b variables. float multiplication(float a, float b) - multiply a and b variables.Create a class Operation which implement ArithmeticOp interface. The classOperation has following members: float no1 - holds the value of operand 1. float no2 - holds the value of operand 2. float result - holds the value of operation result.Create a class OpTest which has main method. The main method create thereference variable of ArithmeticOp interface and object of Operation class.Using interface reference variable call addition(), subtraction(), divide() andmultiplication() methods.

PLZ help with the following in java TRUE OR FALSE An interface can contain defined constants as well as method headings or instead of method headings.

The interface Range is defined below:public interface Range{ void setLimits(int x, int y); int getNumber();}Implementations of Range should exhibit the following behaviour:• The setLimits method should store its parameter values somewhere to serve as the lower and upper limits of the range appropriately.• A call to getValue should return an integer that is always greater than or equal to the lower limit and less than or equal to the upper limit.The class RandomInteger is an implementation of the interface Range. It also has the following features:• It has two fields of int type, low and high, to record the lower and upper limits of the range, respectively.• It has single constructor method that takes two integers and stores them in the appropriate fields. Note: You should make use of the setLimits method.• A call to the method getNumber should return a random number that is always within the range, i.e. greater than or equal to the lower limit and less than or equal to the upper limit.…