Question

You need to design and implement the following structure for your organization. You must follow the instructions given below 1 - Name of you organization is your surname. For example, if your name is "Qasim Ali", then "Ali" will be organization name. 2- Organization and Person must be interfaces. 3 - Staff and infrastructure must be abstract classes. 4 - Rest of the classes should be well defined. At least use five instance variables for each and design a constructor, setter and getter method. 5- Implement method overriding and exception handling anywhere in the program 6 - Use this design and show its working in main class 7 - You need to create a package and it must be your name and id. For example "Qasim 37189" 8 - Number of rooms must be last 2 digits of your id. For example for 12568, rooms must be 68. 9 - Number of people in Lower staff must be first 2 digits of your id. For example for 12568, people must be 12. 10- Copying/cheating/ asking someone may result in same code which can result in F grade.

Need to write the program..
In java language.
And That the program should be according to given scenario..

Answer 1

There were a number of classes, interface, please go through them.

package qasim37189;

public interface Organization {
        void changeMoto(String moto);
        void changeName(String name);
        void foundOn(int year);
        void increasNetWorth(int worth);
        void increaseTurnOver(int amount);
}

package qasim37189;

import java.util.Date;

public interface Person{
        void setFirstName(String fname);
        void setSecondName(String sname);
        void setAge(int age);
        void setDOJ(Date doj);
        String getFirstName();
        String getSecondName();
        int getAge();
        Date getDOJ();
}

package qasim37189;

public abstract class Staff implements Person{

        float hoursWorkedThisWeek;
        float dailyWage;
        int numberOfleavesThisWeek;
        float rateOfIncome;
        float totalIncomeThisWeek;
        
        abstract void hoursWorkedThisWeek(float hours);
        abstract void dailyWage(float sum);
        abstract void numberOfleavesThisWeek(int leave);
        abstract void rateOfIncome(float rate);
        abstract void totalIncomeThisWeek(float income);
        
        Staff() {
                System.out.println("New Staff hired");
        }
}

package qasim37189;

import java.util.Date;

public abstract class Infrastructure {
        abstract void isWorking(boolean condition);
        abstract void lifeOfEquip(int life);
        abstract void price(float price);
        abstract void supplierName(String name);
        abstract void boughtOn(Date date);
        Infrastructure() {
                 System.out.println("Infrastructed set up done");
         }
}

package qasim37189;

import java.util.Date;

public class Laptop extends Infrastructure {
        
        boolean isWorking;
        int lifeOfEquip;
        float price;
        String supplierName;
        Date boughtOn;
        
        //override method implemented
        
        @Override
        void isWorking(boolean condition) {
                this.isWorking = condition;
        }

        @Override
        void lifeOfEquip(int life) {
                this.lifeOfEquip= life;
        }

        @Override
        void price(float price) {
                this.price = price;
        }

        @Override
        void supplierName(String name) {
                this.supplierName=name;
        }

        @Override
        void boughtOn(Date date) {
                this.boughtOn=date;
        }

        
        //setters
        
        public boolean isWorking() {
                return isWorking;
        }

        public int getLifeOfEquip() {
                return lifeOfEquip;
        }

        public float getPrice() {
                return price;
        }

        public String getSupplierName() {
                return supplierName;
        }

        public Date getBoughtOn() {
                return boughtOn;
        }
        
        

}

package qasim37189;

public class Ali implements Organization {

        int networth=0;
        int turnOver=0;
        Staff staff ;
        String moto="default moto";
        String name="default name";
        int foundOnYear=0;
        
        @Override
        public void increasNetWorth(int worth) {
                this.networth=this.networth+worth;
        }

        @Override
        public void increaseTurnOver(int amount) {
                this.turnOver=this.turnOver+amount;
        }

        public void setNetworth(int networth) {
                this.networth = networth;
        }

        public void setTurnOver(int turnOver) {
                this.turnOver = turnOver;
        }

        public void setStaff(Staff staff) {
                this.staff = staff;
        }

        public int getNetworth() {
                return networth;
        }

        public int getTurnOver() {
                return turnOver;
        }

        public Staff getStaff() {
                return staff;
        }

        @Override
        public void changeMoto(String moto) {
                this.moto= moto;
        }

        @Override
        public void changeName(String name) {
                this.name=name;
        }

        @Override
        public void foundOn(int year) {
                this.foundOnYear=year;
        }

}

package qasim37189;

import java.util.Date;

public class OperatorStaff extends Staff{

        //instance variable
        
        String firstName;
        String secondName;
        int age;
        String department;
        Date dateOfJoining;
        
        

        public OperatorStaff(String firstName, String secondName, int age, String department, Date dob) {
                super();
                this.firstName = firstName;
                this.secondName = secondName;
                this.age = age;
                this.department = department;
                this.dateOfJoining = dob;
        }

        @Override
        public void setFirstName(String fname) {
                this.firstName=fname;
        }

        @Override
        public void setSecondName(String sname) {
                this.secondName=sname;
        }

        @Override
        public void setAge(int age) {
                this.age=age;
        }

        @Override
        public void setDOJ(Date doj) {
                this.dateOfJoining=doj;
        }

        @Override
        void hoursWorkedThisWeek(float hours) {
                
        }

        @Override
        void dailyWage(float sum) {
                
        }

        @Override
        void numberOfleavesThisWeek(int leave) {
                        }

        @Override
        void rateOfIncome(float rate) {
                
        }

        @Override
        void totalIncomeThisWeek(float income) {
                
        }

        @Override
        public String getFirstName() {
                return this.firstName;
        }

        @Override
        public String getSecondName() {
                return this.secondName;
        }

        @Override
        public int getAge() {
                return this.age;
        }

        @Override
        public Date getDOJ() {
                return this.dateOfJoining;
        }

}

package qasim37189;

import java.util.Date;

public class MainClass {

        public static void main(String[] args) {
                Ali org = new Ali(); //organization created
                
                System.out.println("Initial Worth : "+org.networth);
                org.setStaff(new OperatorStaff("Tom", "Riddler", 30, "Operator", new Date()));
                org.increasNetWorth(500);
                org.increaseTurnOver(500);
                System.out.println("Name of the new operator added : "+org.getStaff().getFirstName());
                System.out.println("Networth now :"+ org.networth);
                
                //created 5 persons for example, you create as many as your ID
                Person[] persons = new Person[5];
                
                //Create as many staff as per your id , here for example 5 created
                //trying to find 6th person who doesn't exist , you try to find 1 more than your ID that will generate exception
                try {
                        System.out.println(persons[6].getFirstName());
                }
                //Exception handling
                catch (ArrayIndexOutOfBoundsException e) {
                        System.out.println("Trying to find Person who doesnt exists.");
                }
                
        }
                

}