OOP APPROACH

THE UI CLASS


package moneyraisednetOOP;

// steve eilertsen
// Gr 10 - Reading from a simple text file
// and totalling the money raised per house.
// OOP approah with a UI class and a manager class
// Using the Scanner class to access the text file.
// Using basic String handling methods instead of the delimiter to separate
// the house from the amount.
// The while loop, the for loop, if else.
// The use of individual counters.
// Roounding off of final answers to two decimal places

// TEXT FILE LOOKS LIKE THIS . . .
// C 84.81
// W 46.52
// I 42.59
// W 48.81
// K 79.97
// C 41.85
// W 87.71
// The learners house, followed by the amount of money the learner raised.
// Houses are - Ibus, Kingfisher, Weaver and Cormorant, always in the order.

public class MoneyRaisedUI {
    
    public static void main(String[]args)
    {
        System.out.println("Hello amount");
        MoneyRaisedManager mm = new MoneyRaisedManager();
        
        mm.calcIbus();
        mm.calcCormorant();
        mm.calcKingfisher();
        mm.calcWeaver();
        
        mm.calcGrandAmount();
        
        String wholeReport = mm.report();
        System.out.println(wholeReport);
        
    }
    
}
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THE MANAGER CLASS

package moneyraisednetOOP;

// steve eilertsen
// Gr 10 - Reading from a simple text file
// and totalling the money raised per house.
// OOP approah with a UI class and a manager class
// Using the Scanner class to access the text file.
// Using basic String handling methods instead of the delimiter to separate
// the house from the amount.
// The while loop, the for loop, if else.
// The use of individual counters.
// Roounding off of final answers to two decimal places

// TEXT FILE LOOKS LIKE THIS . . .
// C 84.81
// W 46.52
// I 42.59
// W 48.81
// K 79.97
// C 41.85
// W 87.71
// The learners house, followed by the amount of money the learner raised.
// Houses are - Ibus, Kingfisher, Weaver and Cormorant, always in the order.

import java.io.File;
import java.io.FileNotFoundException;
import java.text.DecimalFormat;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

public class MoneyRaisedManager
{
    // FIVE COUNTERS NEEDED
       
    // One overall counter for line by line error checking in txt file.
    // Lines start at one, not zero.
    private int oCounter = 1;
       
    // One counter for each house.
    private int iCounter = 0;
    private int kCounter = 0;
    private int wCounter = 0;
    private int cCounter = 0;
       
    // One total amount for each house.
    private double iAmount = 0.0;
    private double kAmount = 0.0;
    private double wAmount = 0.0;
    private double cAmount = 0.0;
    
    // Grand total for all the houses
    private double grandTotal = 0.0;
       
    // One array for each house to store the money raised per house.
    private double[] ibusArr = new double[200];
    private double[] kingfisherArr = new double[200];
    private double[] weaverArr = new double[200];
    private double[] cormorantArr = new double[200];
       
    // Rounding off to 2 decimal places. Decimal rounding object called "d"
    private DecimalFormat d = new DecimalFormat("0.00");
    
    // Consturctor method   
       public MoneyRaisedManager()
       {
       
        try {
            Scanner scFile = new Scanner(new File("funday4.txt"));
            System.out.println("File found");
            
            while(scFile.hasNextLine())
            {
                String line = scFile.nextLine();
                
                // One can also use the switch case statement here.
                // Each house needs its own array and its own counter.
                // Use String handling to separate the house from the amount.
                if(line.charAt(0) == 'I')
                {
                    String amountSt = line.substring(2);
                    double amount = Double.parseDouble(amountSt);
                    ibusArr[iCounter] = amount;
                    iCounter++;
                }
                
                else if(line.charAt(0) == 'K')
                {
                    String amountSt = line.substring(2);
                    double amount = Double.parseDouble(amountSt);
                    kingfisherArr[kCounter] = amount;
                    kCounter++;
                }
                
                else if(line.charAt(0) == 'W')
                {
                    String amountSt = line.substring(2);
                    double amount = Double.parseDouble(amountSt);
                    weaverArr[wCounter] = amount;
                    wCounter++;
                }
                
                else if(line.charAt(0) == 'C')
                {
                    String amountSt = line.substring(2);
                    double amount = Double.parseDouble(amountSt);
                    cormorantArr[cCounter] = amount;
                    cCounter++;
                }
                
                else
                {
                    System.out.println("Error with house in line " + oCounter);
                    System.exit(0);
                }
                
                // Overall counter for error checking.
                oCounter++;
                
            } // end while
        } catch (FileNotFoundException ex) {
            Logger.getLogger(MoneyRaisedManager.class.getName()).log(Level.SEVERE, null, ex);
        }
       } // end constructor
           
        public void calcIbus()
        {
           // Total Ibus house.
           for(int x = 0; x < iCounter; x++)
           {
               iAmount = iAmount + ibusArr[x];
           }
        }
        
        public void calcKingfisher()
        {
            // Total Kingfisher house.
           for(int x = 0; x < kCounter; x++)
           {
               kAmount = kAmount + kingfisherArr[x];
           }
        } 
           
        public void calcWeaver()
        {
            // Total Weaver house.
           for(int x = 0; x < wCounter; x++)
           {
               wAmount = wAmount + weaverArr[x];
           }
        }
        
        public void calcCormorant()
        {
            // Total Cormorant house.
           for(int x = 0; x < cCounter; x++)
           {
               cAmount = cAmount + cormorantArr[x];
           }
        }
        
        public void calcGrandAmount()
        {
            grandTotal = (iAmount + kAmount + wAmount + cAmount);
        }
        
        public String report()
        {
            
            String wholeReport = "";
            
           // Build ouptput String
            wholeReport = "The total for Ibus house is R" + d.format(iAmount)
            + "\n" + "The total for Kingfisher house is R" + d.format(kAmount)         
            + "\n" + "The total for Weaver house is R" + d.format(wAmount)
            + "\n" + "The total for Cormorant house is R" + d.format(cAmount)
            + "\n" + "==============================================="
            + "\n" + "The grand total is R" + d.format(grandTotal);
         
            return wholeReport;
        }

} // end class

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