Question

Purpose:

The main goal of this assignment is to practice Object Oriented Programming by creating classes, writing methods, and creating inheritance type relationships.

Task:

1. Create a Java project using the IDE
2. Write a program using Object Oriented Programming
   • Plan a program where two classes inherit from a single class and theme it in a way that makes sense.
     • Create a super class with a non-constructor method
     • Create two sub classes with their own non-constructor methods and have them inherit from the super class
3. Compress the project files and submit them

Answer 1

Superclass: EmpBasicInfo

Subclasses: Manager, WageEmployee

Program:

import java.util.*;

class EmpBasicInfo
{
   void employeeInfo(int empID,String empName)
   {
       System.out.println("Employee ID: "+empID);
       System.out.println("Employee Name: "+empName);
   }
}

class Manager extends EmpBasicInfo
{
   void salaryInfo(int empID,String empName,double rate,int month)
   {
       super.employeeInfo(empID, empName);
       System.out.println("Rate: "+rate);
       System.out.println("Month: "+month);
       System.out.println("Salary : "+(rate*month));      
   }
}

class WageEmployee extends EmpBasicInfo
{
   void salaryInfo(int empID,String empName,double rate,int day)
   {
       super.employeeInfo(empID, empName);
       System.out.println("Rate: "+rate);
       System.out.println("Days: "+day);
       System.out.println("Salary : "+(rate*day));      
   }
}
public class EmployeeDetails
{
public static void main(String args[])
{
   Scanner sc=new Scanner(System.in);
   int empIDM,empIDW;
   String empNameM,empNameW;
   double rateM,rateW;
   int month,day;
  
   Manager mEmp=new Manager();
  
   System.out.println("Enter details of Manager : ");
   System.out.print("Enter Employee ID: ");
   empIDM=sc.nextInt();
   System.out.print("Enter Employee Name: ");
   empNameM=sc.next();
   System.out.print("Enter Rate: ");
   rateM=sc.nextDouble();
   System.out.print("Enter Month: ");
   month=sc.nextInt();
  
   WageEmployee wEmp=new WageEmployee();
  
   System.out.println("Enter details of Wage Employee : ");
   System.out.print("Enter Employee ID: ");
   empIDW=sc.nextInt();
   System.out.print("Enter Employee Name: ");
   empNameW=sc.next();
   System.out.print("Enter Rate: ");
   rateW=sc.nextDouble();
   System.out.print("Enter day: ");
   day=sc.nextInt();
      
  
   System.out.println("\nDetails of Manager: \n");
   mEmp.salaryInfo(empIDM, empNameM, rateM, month);
  
   System.out.println("\nDetails of Wage Employee: \n");
   wEmp.salaryInfo(empIDW, empNameW, rateW, day);
}
}

Output: