Skip to main content

Polymorphism

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class PolymorphismSample {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        ComputerEngineer ce = new ComputerEngineer("Nurhak", "Kaya", "IT");
        ce.addProgrammingLang("Java");
        ce.addProgrammingLang("C#");
        Accountant ac = new Accountant("Jessie", "J");
        Manager mn = new Manager("Michael", "M");
        mn.addEmployee(ce);
        mn.addEmployee(ac);
        mn.getReport();
    }
}

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class Employee {

    protected String name;
    protected String surname;

    public Employee(String name, String surname) {
        this.name = name;
        this.surname = surname;
    }

    public void getReport() {
        System.out.println("Name: " + name + " Surname: " + surname);
    }
}

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class Engineer extends Employee {

    protected String[] projects;
    protected String department;
    protected int projectCount;

    public Engineer(String name, String surname, String department) {
        super(name, surname);
        this.department = department;
        this.projects = new String[5];
        this.projectCount= 0;
    }

    public void addProject(String project) {
        projects[projectCount] = project;
        projectCount++;

    }

    @Override
    public void getReport() {
        super.getReport();
        System.out.println("Department: " + department);
        System.out.println("Projects: ");
        for (int i = 0; i < projectCount; i++) {
            System.out.println("\t" + projects[i]);
        }
    }
}

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class ComputerEngineer extends Engineer {

    protected String[] programmingLangs;
    protected int programmingLangCount;

    public ComputerEngineer(String name, String surname, String department) {
        super(name, surname, department);
        this.programmingLangs = new String[5];
        this.programmingLangCount = 0;
    }

    public void addProgrammingLang(String programmingLangName) {
        programmingLangs[programmingLangCount] = programmingLangName;
        programmingLangCount++;
    }

    @Override
    public void getReport() {
        super.getReport();
        System.out.println("Title: Computer Engineer");
        System.out.println("Programming Languages: ");
        for (int i = 0; i < this.programmingLangCount; i++) {
            System.out.println("\t" + programmingLangs[i] + " ");
        }
    }
}

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class Accountant extends Employee {

    private String[] accountingPrograms;
    private int accountingProgramCount;

    public Accountant(String name, String surname) {
        super(name, surname);
        this.accountingPrograms = new String[5];
        this.accountingProgramCount = 0;
    }

    public void addAccountingProgram(String accountingProgram) {
        accountingPrograms[accountingProgramCount] = accountingProgram;
        accountingProgramCount++;
    }

    @Override
    public void getReport() {
        super.getReport();
        System.out.println("Title: Accountant");
        System.out.println("Accounting Programs: ");
        for (int i = 0; i < accountingProgramCount; i++) {
            System.out.println("\t" + accountingPrograms[i]);
        }
    }
}

package polymorphismsample;

/**
 *
 * @author Nurhak
 */
public class Manager extends Employee {

    private Employee[] employees;
    private int employeeCount;

    public Manager(String name, String surname) {
        super(name, surname);
        this.employees = new Employee[5];
        this.employeeCount = 0;
    }

    public void addEmployee(Employee employee) {
        employees[employeeCount] = employee;
        employeeCount++;
    }

    @Override
    public void getReport() {
        for (int i = 0; i < employeeCount; i++) {
            employees[i].getReport();
            System.out.println(employees[i]);
        }
    }
}

Labels:

Comments

Post a Comment

Popular posts from this blog

How to fix Git push error: "RPC failed; curl 56 HTTP/2 stream 7 was reset send-pack: unexpected disconnect while reading sideband packet fatal: the remote end hung up unexpectedly"

Problem Today I saw the following problem when I tried to push my changes to a Git server after doing some work for upgrading an Umbraco v7 project to v8.18.8.  Possible reasons After some investigations, it seems like this could be because of the following reasons; Git is not happy with the amount of changes that are being pushed into the server.  There are possible limitations on the server about the size/amount of files that you can push. Your internet connection is not good and stable enough. Your Git client's version is old. Solution options For me, the easiest option was connecting to another Wifi and trying again. Apparently, this option helped quite a few people, so it is worth giving it a try. Unfortunately, it didn't work for me. A bad internet connection wasn't an option for me either, as my internet is pretty fast (500 Mbps). Similarly, my Git client version was the latest version (git version 2.41.0.windows.3).  On StackOverflow, there were a lot of recommendat
Post a Comment
Read more

How to use JQuery Ajax Methods for Async ASP.NET MVC Action Methods

Making repeatedly calls to async methods can be a nightmare. In this case, it makes sense to use 2 ajax methods, instead of one. Here is a simple solution to overcome this problem. See that  ajaxcalls   is emptied after the success response for the first ajax call and then the second ajax method is used to make one single call to the async action method. Hope it helps. View: @section Scripts{     < script type ="text/javascript">         var smartDebitObject = new Object();         smartDebitObject.MembershipNumber = $( "#MembershipNumber" ).val();         smartDebitObject.ProfileId = $( "#ProfileId" ).val();         smartDebitObject.FirstName = $( "#FirstName" ).val();         smartDebitObject.LastName = $( "#LastName" ).val();         smartDebitObject.AddressLine1 = $( "#AddressLine1" ).val();         smartDebitObject.Postcode = $( "#Postcode" ).val();         smartDebitObject
Post a Comment
Read more

How to fix "Microsoft SQL Error SQL71564: Error validating element [USERNAME]: The element [USERNAME] has been orphaned from its login and cannot be deployed."

I needed to export a database in BACPAC format today in order to restore it somewhere else, and I encountered the following error. To resolve this issue, I deleted all of the users mentioned in the error log. After successfully creating the BACPAC file, I used it to create a new database with no problems. Error: TITLE: Microsoft SQL Server Management Studio ------------------------------ One or more unsupported elements were found in the schema used as part of a data package. Error SQL71564: Error validating element [USER1]: The element [USER1] has been orphaned from its login and cannot be deployed. Error SQL71564: Error validating element [USER2]: The element [USER2] has been orphaned from its login and cannot be deployed. Error SQL71564: Error validating element [USER3]: The element [USER3] has been orphaned from its login and cannot be deployed. Error SQL71564: Error validating element [USER4]: The element [USER4] has been orphaned from its login and cannot be deployed. Error SQL71
Post a Comment
Read more