UDM (Unfinished)

package arnel;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;

import javax.swing.JOptionPane;

public class JavaLab {

	public static void main(String[] args) throws IOException {

		PrintWriter outfile = new PrintWriter ("studsavings.txt");

		double fsav1 = 0, fsav2 = 0, fsav3 = 0, average = 0;
		String fcourse=""; String fname;
		String name = JOptionPane.showInputDialog(null, "Enter your name ");
		welcome(name);

		do {

			rec_savings();
		}

		while (JOptionPane.showConfirmDialog(null, "Input more entries?")==0);

		Scanner infile = new Scanner (new FileReader("studsavings.txt"));
		infile.useDelimiter(":");
		PrintWriter studout = new PrintWriter ("studout.txt");

		while (infile.hasNext()){
			fname = infile.next();
			fcourse = infile.next();
			fsav1 = infile.nextDouble();
			fsav2 = infile.nextDouble();
			fsav3 = infile.nextDouble();

			infile.nextLine();
			average = cal_avg_savings(fsav1,fsav2,fsav3);

			if (det_if_enuf(fcourse,average) == true){

				outfile.println(fname+fcourse+":"+average);
			}

			else if  (det_if_enuf(fcourse,average) == false ) {

				outfile.println(fname+":"+fcourse+":"+average+"SAVE PA MORE!");
			}
		}
		infile.close();
		outfile.close();




	}

	public static void welcome (String name)
	{

		JOptionPane.showMessageDialog(null, "Welcome " + name );

	}

	public static void rec_savings () throws IOException
	{
		PrintWriter outfile = new PrintWriter (new FileWriter("studsavings.txt", true));
		double sav1, sav2 ,sav3;

	String name = JOptionPane.showInputDialog("Enter full name");
	String course =	JOptionPane.showInputDialog("Enter course");
	sav1 = Integer.parseInt(JOptionPane.showInputDialog("Enter savings for first day"));
	sav2 = Integer.parseInt(JOptionPane.showInputDialog("Enter savings for second day"));
	sav3 = Integer.parseInt(JOptionPane.showInputDialog("Enter savings for third day"));

		outfile.println(name+":"+course+":"+sav1+":"+sav2+":"+sav3);
		outfile.close();


	}

	public static double cal_avg_savings (double x, double y , double z){

			double average = (x+y+z/3);

			return average;
	}

	public static boolean det_if_enuf (String course, double avg){

		if (course.equalsIgnoreCase("CCE") && (avg<=50))

			return false;

		else if (course.equalsIgnoreCase("CCE") && (avg > 50))
			return true;

		else if (course.equalsIgnoreCase("HRM") && (avg <= 20))
			return false;

			else if (course.equalsIgnoreCase("HRM") && (avg > 20))
				return true;

		return true;
	}

}