Question

The class’s needed are:

• - A Donor class that has class attributes of a donor’s name, hometown, and a charitable point scale (this is a number between 0 and 4). This is a normal regular object that you should know how to create by now.

• - A Charity class that has class attributes of a charity name, its acronym, an arraylist or array of Donor’s, and probably a Decimal Formatter. Depending on how you write your code, you may need another variable or two.

  Methods needed but not limited to:

  • Setters and getters

  • A method to create a Donor and add it to your arraylist or array.

  • A method to output the all of data of a Donor including overall

    charitable point scale and number of Donors.

  • A method to calculate the Charities overall charitable point scale.

  • A method that uses either the Merge or Quick sort to sort the

    Donors in a Charity in descending order by charitable point scale.

  • A method that will output all of the Charities that qualify for the

    “Golden Goose” award which is based on Charities that have an

    overall charitable point scale of 3.00 or higher.

  • A method that will output all of the Charities that qualify for the

    “Feels Great to Give” award based on the Charities that have an

    overall charitable point scale of 2.00 up to 3.00.

  • A method that will output all of the Charities that qualify for the

    “Happy to Help” award based on the Charities that have an overall

    charitable point scale 1.00 up to 2.00.

  • A method that will output all of the Charities that qualify for the

    “Something’s Better than Nothing” award based on the Charities

    that have an overall charitable point scale 0.00 up to 1.00.

  • A method to write each Charity and its Donors data to a file.

Answer 1

Screenshot

Program

Donor.java

//Create a class Donor
public class Donor {
   //Attributes
   private String name;
   private String homeTown;
   private double points;
   //Constructor
   public Donor(String name,String town,double scale) {
       this.name=name;
       this.homeTown=town;
       if(scale<0 || scale>4) {
           System.out.println("Set default!!!");
           points=0;
       }
       else {
           points=scale;
       }
   }
   //Getters and setters
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
   public String getHomeTown() {
       return homeTown;
   }
   public void setHomeTown(String homeTown) {
       this.homeTown = homeTown;
   }
   public double getPoints() {
       return points;
   }
   public void setPoints(double points) {
       if(points<0 || points>4) {
           System.out.println("Set default!!!");
           this.points=0;
       }
       else {
           this.points=points;
       }
   }  
}

Charity.java

import java.io.FileWriter;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Scanner;

//Create a class Charity
public class Charity {
   //Attributes
   private String name;
   private ArrayList<Donor> donors;
   private Scanner sc=new Scanner(System.in);
   private DecimalFormat df=new DecimalFormat(".##");
   //Constructor
   public Charity(String name) {
       if(name.length()>5) {
           System.out.println("Take first 5 letler as name!!");
           this.name=name.substring(0,5);
           this.name=this.name.toUpperCase();
       }
       else {
           this.name=name;
       }
       donors=new ArrayList<Donor>();
      
   }
   //Setters and getters
   public String getName() {
       return name;
   }
   public void setName(String name) {
       if(name.length()>5) {
           System.out.println("Take first 5 letler as name!!");
           this.name=name.substring(0,5);
           this.name=this.name.toUpperCase();
       }
       else {
           this.name=name;
       }
   }
   public ArrayList<Donor> getDonors() {
       return donors;
   }
   public void setDonors(ArrayList<Donor> donors) {
       this.donors = donors;
   }
   //A method to create a Donor and add it to your arraylist
   public void addDonor() {
       System.out.print("Enter donor name: ");
       String name=sc.nextLine();
       System.out.print("Enter donor hometown: ");
       String town=sc.nextLine();
       System.out.print("Enter charity points(0-4): ");
       int points=sc.nextInt();
       sc.nextLine();
       Donor donor=new Donor(name,town,points);
       donors.add(donor);
   }
   //A method to output the all of data of a Donor including overall
    //charitable point scale and number of Donors.
   public void displayDetails() {
       System.out.println("Charity Trust "+name+"'s Donor's Details:-");
       System.out.println("Donor name          Hometown          Charity points");
       for(int i=0;i<donors.size();i++) {
           System.out.printf("%-20s%-18s   %.2f\n",donors.get(i).getName(),donors.get(i).getHomeTown(),donors.get(i).getPoints());
       }
       System.out.println("\nTotal donors="+donors.size());
       System.out.println("Total points="+getOverallPoints());
       System.out.println();
   }
   //A method to calculate the Charities overall charitable point scale.
   public int getOverallPoints() {
       int totPoints=0;
       for(int i=0;i<donors.size();i++) {
           totPoints+=donors.get(i).getPoints();
       }
       return totPoints;
   }
   //Sort using quicksort
   protected ArrayList<Donor> quickSort( ArrayList<Donor> donors)
   {
        if (donors.size() <= 1)
            return donors; // Already sorted

        ArrayList<Donor> sorted = new ArrayList<Donor>();
        ArrayList<Donor> lesser = new ArrayList<Donor>();
        ArrayList<Donor> greater = new ArrayList<Donor>();
       int pivot = (donors.size())-1; // Use last Vehicle as pivot
        for (int i = 0; i < donors.size()-1; i++)
        {
            //int order = list.get(i).compareTo(pivot);
            if (donors.get(i).getPoints()>donors.get(pivot).getPoints() )
                lesser.add(donors.get(i));  
            else
                greater.add(donors.get(i));
        }

        lesser = quickSort(lesser);
        greater = quickSort(greater);

        lesser.add(donors.get(pivot));
        lesser.addAll(greater);
        sorted = lesser;

        return sorted;
   }
  
   //A method that will output all of the Charities that qualify for the
    //“Golden Goose” award which is based on Charities that have an
    //overall charitable point scale of 3.00 or higher.
   public void getGoldenGoose() {
       System.out.println("Charity Trust "+name+"'s Golde Goose Awarded Donor's Details:-");
       System.out.println("Donor name          Hometown          Charity points");
       for(int i=0;i<donors.size();i++) {
           if(donors.get(i).getPoints()>=3.0) {
               System.out.printf("%-20s%-18s   %.2f\n",donors.get(i).getName(),donors.get(i).getHomeTown(),donors.get(i).getPoints());
           }
       }
       System.out.println();
   }
    //A method that will output all of the Charities that qualify for the
   //“Feels Great to Give” award based on the Charities that have an
   //overall charitable point scale of 2.00 up to 3.00.
   public void getFeelGreat() {
       System.out.println("Charity Trust "+name+"'s Feel Great Awarded Donor's Details:-");
       System.out.println("Donor name          Hometown          Charity points");
       for(int i=0;i<donors.size();i++) {
           if(donors.get(i).getPoints()>=2.0 && donors.get(i).getPoints()<3.0) {
               System.out.printf("%-20s%-18s   %.2f\n",donors.get(i).getName(),donors.get(i).getHomeTown(),donors.get(i).getPoints());
           }
       }
       System.out.println();
   }
   //A method that will output all of the Charities that qualify for the
   //“Happy to Help” award based on the Charities that have an overall
   //charitable point scale 1.00 up to 2.00.
   public void getHappyToHelp() {
       System.out.println("Charity Trust "+name+"'s Happy to Help Awarded Donor's Details:-");
       System.out.println("Donor name          Hometown          Charity points");
       for(int i=0;i<donors.size();i++) {
           if(donors.get(i).getPoints()>=1.0 && donors.get(i).getPoints()<2.0) {
               System.out.printf("%-20s%-18s   %.2f\n",donors.get(i).getName(),donors.get(i).getHomeTown(),donors.get(i).getPoints());
           }
       }
       System.out.println();
   }
  
   //A method that will output all of the Charities that qualify for the
   //“Something’s Better than Nothing” award based on the Charities
   //that have an overall charitable point scale 0.00 up to 1.00.
   public void getSomething() {
       System.out.println("Charity Trust "+name+"'s Something’s Better than Nothing Awarded Donor's Details:-");
       System.out.println("Donor name          Hometown          Charity points");
       for(int i=0;i<donors.size();i++) {
           if(donors.get(i).getPoints()>=0.0 && donors.get(i).getPoints()<1.0) {
               System.out.printf("%-20s%-18s   %.2f\n",donors.get(i).getName(),donors.get(i).getHomeTown(),donors.get(i).getPoints());
           }
       }
       System.out.println();
   }
   //A method to write each Charity and its Donors data to a file.
   public void writeData() {
       try{  
               FileWriter fw=new FileWriter("CharityFile.txt",true);  
             
           for(int i=0;i<donors.size();i++) {
                   fw.write(donors.get(i).getName()+","+donors.get(i).getHomeTown()+","+donors.get(i).getPoints()+System.lineSeparator());
              
           }
  
               fw.close();  
              }catch(Exception e){System.out.println(e);}  
              System.out.println("File append Success...");  
}  
  
}

CharityTest.java

public class CharityTest {

   public static void main(String[] args) {
       //Create a charity trust
       Charity ch=new Charity("ATMS");
       //Add donors
       for(int i=0;i<3;i++) {
           ch.addDonor();
       }
       //Different method test
       ch.displayDetails();
       ch.setDonors(ch.quickSort(ch.getDonors()));
       ch.displayDetails();
       ch.getGoldenGoose();
       ch.writeData();

   }

}

-----------------------------------

Output

Enter donor name: Millis
Enter donor hometown: manmar
Enter charity points(0-4): 4
Enter donor name: Mark
Enter donor hometown: Malli
Enter charity points(0-4): 1
Enter donor name: Jack
Enter donor hometown: Japan
Enter charity points(0-4): 3
Charity Trust ATMS's Donor's Details:-
Donor name          Hometown          Charity points
Millis              manmar               4.00
Mark                Malli                1.00
Jack                Japan                3.00

Total donors=3
Total points=8

Charity Trust ATMS's Donor's Details:-
Donor name          Hometown          Charity points
Millis              manmar               4.00
Jack                Japan                3.00
Mark                Malli                1.00

Total donors=3
Total points=8

Charity Trust ATMS's Golde Goose Awarded Donor's Details:-
Donor name          Hometown          Charity points
Millis              manmar               4.00
Jack                Japan                3.00

File append Success...

----------------------------------------

Charityfile.txt

Millis,manmar,4.0
Jack,Japan,3.0
Mark,Malli,1.0