Draw out a uml class diagram, JAVA Programming

Assignment Help:

Question:

(a) Draw out a UML class diagram that captures the following information: An Employee is a kind of Person. An ATM is a kind of Machine. Both an Employee and an ATM can behave as if they were a Cashier, in that it is possible to both withdraw cash from them and deposit cash with them.

(b) Now consider the Person class and the Cashier interface listed below. Write the Java code for an implementation of the Employee class of part 1(a). Do not complete the body of any methods in the Employee class - just place comments to outline the actions that should occur:

public class Person {
public int age;
public int secId_number;
}

public interface Cashier {
public void withdraw(int account_id, int amount);
public void deposit(int account_id, int amount);
}

(c) The Java class for Person in part 1(b) does not illustrate best practice in Java programming.

i. Modify the Person class to make it robust so that it is not possible for negative values of the fields of an instance of Person to be set.

ii. Define a constructor for the Person class that enables an instance to be created with specific age and secId_number values.

iii. Define a constructor for the Employee class that also enables specific age and secId_number values to be set.

iv. What is the difference between declaring a field private and declaring it protected?


Related Discussions:- Draw out a uml class diagram

I want someone to fix some bugs in a java app, I want someone to fix some b...

I want someone to fix some bugs in a java app Project Description: I have a small app in java, but it has some issues, the app is running. But we need to make it work more st

What is javaserver faces expression language, A easy expression language us...

A easy expression language used by a JavaServer Faces UI component tag attributes to bind the associated component to a bean property or to bind the associated component's value to

Javascript, You can declare a variable by the var statement such as: var...

You can declare a variable by the var statement such as: var strname = some value You can also declare a variable with simply assigning a value to the variable. Although, if

Servlet, i nedd servlet basics

i nedd servlet basics

Explain the three benefits of access protection, Explain the Three Benefits...

Explain the Three Benefits of Access Protection ? Access protection has three major benefits: 1. It permits you to enforce constraints on an object's state. 2. It gives a si

Explain difference between an if and a switch statement, What is the differ...

What is the difference between an if statement and a switch statement? The if statement is used to select between two alternatives. It uses a boolean expression to decide whi

What is rmi, RMI is a set of APIs that permits to build distributed applica...

RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.

Simulated annealing, implement simulated annealing for cable company proble...

implement simulated annealing for cable company problem

Program to store student record, Write a program called Grid. The program s...

Write a program called Grid. The program starts by prompting (asking) the user for the name of an input text file. This file is guaranteed to be correct and has the following fo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd