Java Assignment#3 w/out print

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package javaproject;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Scanner;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

/**
 *
 * @author youssefgamil
 */
class Course
{
    private int credit;
    private String name,id;
    public int getCredit()
    {
        return credit;
    }
    public String getName()
    {
        return name;
    }
    public String getId()
    {
        return id;
    }
    public void setName(String p){name=p;}
    public void setId(String p){id=p;}
    public void setCredit(int p){credit=p;}
    public Course(){}
    public Course(String name,String id,int cr)
    {
        this.name=name;
        this.id=id;
        this.credit=cr;
    }
    public void setCourselnfo(String name,String id,int cr)
    {
        this.name=name;
        this.id=id;
        this.credit=cr;
    }
    public void setlnfo(String name,String id,int cr)
    {
        this.name=name;
        this.id=id;
        this.credit=cr;
    }

    @Override
    public String toString()
    {
        System.out.println("Course Name: "+name+
                            "\nCourse ID: "+id+
                            "\nCredit Hours: "+credit);
        return this.toString();
    }
}
class CourseComparator implements Comparator<Course>
{
    @Override
    public int compare(Course o1, Course o2) {
     return o1.getName().compareTo(o2.getName());
    }
}
class Person
{
    protected String firstName,lastName,id;
}
class Student extends Person
{
    private int numberOfCourses;
    private static double tuitionRate=0;
    private boolean isTuitionPaid=false;
    private Course Courses[]=new Course[6];
    private char   grades[]=new char[6];
    //firstName,LastName,id,isTuitionPaid,courses,grades as in the given example testcase
    public void setInfo(String firstName,String lastName,String id ,int numberOfCourses,boolean isTuitionPaid,Course[] c,char[] grades)
    {
        super.firstName=firstName;
        super.lastName=lastName;
        this.id=id;
        this.isTuitionPaid=isTuitionPaid;
        this.Courses=c;
        this.numberOfCourses=numberOfCourses;
        this.grades=grades;
        this.tuitionRate=tuitionRate;
    }
    public void setInfo(String firstName,String lastName,int id,int numberOfCourses ,boolean isTuitionPaid,Course[] c,char[] grades)
    {
        super.firstName=firstName;
        super.lastName=lastName;
        this.id=id+"";
        this.isTuitionPaid=isTuitionPaid;
        this.Courses=c;
        this.numberOfCourses=numberOfCourses;
        this.grades=grades;
        this.tuitionRate=tuitionRate;
    }
    public String getName()
    {
        return super.firstName+" "+super.lastName;
    }
    public String getID()
    {
        return id;
    }
    public boolean isTuitionPaid()
    {
        return isTuitionPaid;
    }
    public double getTuitionRate()
    {
        return tuitionRate;
    }
    public int getNumberOfCourses()
    {
        return numberOfCourses;
    }

    public void setFirstName(String p)
    {
        super.firstName=p;
    }
    public void setLastName(String p)
    {
        super.lastName=p;
    }
    public static void setTuitionRate(double p)
    {
        tuitionRate=p;
    }
    public void setID(String p)
    {
        id=p;
    }
    public void setTuitionPaid(boolean p)
    {
        isTuitionPaid=p;
    }
    public void setNumberOfCourses(int N)
    {
        numberOfCourses=N;
    }

    public void setCoursesEnrolled(Course c[],char grades[])
    {
        Courses=c;
        this.grades=grades;
    }
    public char getGrade(int i)
    {
        if(i>=6 || i<0) return '?';
        return grades[i];
    }
    public Course getCourse(int i)
    {
        if(i>=6 || i<0) return new Course("??", "??", -1);
        return Courses[i];
    }
    public int getHoursEnrolled()
    {
        int res=0;
        for (Course i:Courses)
            res+=(  i!=null ? i.getCredit():0    );
        return res;
    }
    public double getGPA()
    {
        String g="ABCDF";
        int gp[]=new int[]{4,3,2,1,0};
        double res=0;
        for(int i=0;i<numberOfCourses;i++)
            if(g.indexOf(   grades[i]    +"")>-1)
                res+=(gp[g.indexOf(grades[i]+"")] *Courses[i].getCredit() );

        res/=(0.0+getHoursEnrolled());
        return res;
    }
    public void sortCourses()
    {
        Arrays.sort(Courses,new CourseComparator());
    }
    @Override
    public String toString()
    {//%4$-10s
        String res=String.format("%1$-10s \t%2$-10s \t%3$-10s \t%4$-10s \n", "Course No","Course Name","Credit","Grade");;
        for(int i=0;i<numberOfCourses;i++)
                res+=String.format("%1$-10s \t%2$-10s \t%3$-10s \t%4$-10s \n", Courses[i].getId(),Courses[i].getName(),Courses[i].getCredit(),(isTuitionPaid ? grades[i]:"***"));
        return "Student Name:"+super.firstName+" "+super.lastName+"\n"+
               "Student ID:"+id+"\n"+
                "Number Of Courses:"+numberOfCourses+"\n\n"+res+"\n"+
                "Total number of credit hours:"+this.getHoursEnrolled()+"\n"+
                "Midsemester GPA:"+String.format("%2.2f", getGPA())+"\n"+(isTuitionPaid ? "":"Grades are Being held for not paying the tuition Amount Due:$"+(tuitionRate*getHoursEnrolled())+"\n");
    }
}

class GradeRepotProgram
{
    public static void getStudentData(Scanner inpFile, Student studentList[],double tuitionRate) throws Exception
    {
       int M;
       inpFile.nextLine();
       String tmp[],tmp2[];
       for(Student i:studentList)
       {
           tmp=inpFile.nextLine().split(" ");
           M=Integer.parseInt(tmp[4]);
           Course c[]=new Course[M];
           char g[]=new char[M];
           for(int j=0;j<M;j++)
           {
               tmp2=inpFile.nextLine().split(" ");
               c[j]=new Course(tmp2[0],tmp2[1], Integer.parseInt(tmp2[2]));
               g[j]=tmp2[3].charAt(0); //grade
           }

           i.setInfo(tmp[0], tmp[1],tmp[2], M,  tmp[3].indexOf("Y")>-1 , c, g);
       //    Student.setTuitionRate(tuitionRate);
           //I still don't get it!..how useful is this parameter since,it wouldn't make any difference!
       }
    }
    public static void printGradeReport(PrintWriter outpFile, Student studentList[])
    {
        for(Student i:studentList)
            outpFile.println(i+"\n*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-");
        outpFile.close();
    }
}
/*
public class JavaS6Project1 {
    private Student[] studentList;
    private int noOfStudents;
    private double tuitionRate;
    Scanner inFile;
    PrintWriter outFile;


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

        Scanner inFile=new Scanner(new FileInputStream("sData.txt")) ;
        PrintWriter outFile=new PrintWriter("sDataOut.txt");
        int noOfStudents=inFile.nextInt();
        double tuitionRate=inFile.nextDouble();
        Student[] studentList=new Student[noOfStudents];


        Student.setTuitionRate(tuitionRate);
        for(int i=0;i<noOfStudents;i++)
            studentList[i]=new Student();

        GradeRepotProgram.getStudentData(inFile, studentList, tuitionRate);
        GradeRepotProgram.printGradeReport(outFile, studentList);

    //    /* Example Test Case in Assignment#1:
        Course course1= new Course();
        Course course2= new Course();
        Course course3= new Course();
        Course course4= new Course();
        course1.setCourselnfo("ComputerSci", "CSC478", 3);
        course2.setCourselnfo("History", "H1S356", 3);
        course3.setCourselnfo("Mathematics", "MTH345",  4);
        course4.setCourselnfo("Physics", "PHY357 ", 3);


        Student student1=new Student();
        Student.setTuitionRate(70); //This Example shows it's static,right?!
        Course [] courses={course1,course2,course3,course4};
        char [] cGrades={'B','A','A','B'};
        student1.setInfo("Ahmed", "Aly", 890238, 4, true, courses, cGrades);
        System.out.println(student1);
    }

}
*/
class StudentFrame extends JFrame implements ActionListener
{
    private JTextField studentName,courseNumber,studentID,credit,gpa;
    private JButton first,previous,next,last,exit,print;
    private JTextArea textArea;

    private Student[] studentList;
    private int noOfStudents,p=-1;
    private double tuitionRate;
    private boolean init=false;

    public StudentFrame()
    {
        super("Student Information");
        setSize(600,600);
        Container c=getContentPane();
        c.setLayout(new BorderLayout());

            JPanel upperNorth=new JPanel();
            upperNorth.setLayout(new GridLayout(3,1)); //3 rows

            upperNorth.add(new JLabel("STUDENT RECORD",JLabel.CENTER));

                JPanel northPanel1=new JPanel();
                northPanel1.setLayout(new GridLayout(1,6));//6 col

                    northPanel1.add(new JLabel("Student Name",JLabel.CENTER));
                    studentName=new JTextField();
                    studentName.setEnabled(false);
                    northPanel1.add(studentName);

                    northPanel1.add(new JLabel("number Of Courses",JLabel.CENTER));
                    courseNumber=new JTextField();
                    courseNumber.setEnabled(false);
                    northPanel1.add(courseNumber);

                    northPanel1.add(new JLabel("student ID",JLabel.CENTER));
                    studentID=new JTextField();
                    studentID.setEnabled(false);
                    northPanel1.add(studentID);

            upperNorth.add(northPanel1);
                JPanel northPanel2=new JPanel();
                northPanel2.setLayout(new BorderLayout());
                    JPanel northPanel3=new JPanel();
                    northPanel3.setLayout(new GridLayout(1,4)); //4 cols

                        northPanel3.add(new JLabel("credit Hours",JLabel.CENTER));
                        credit=new JTextField();
                        credit.setEnabled(false);
                        credit.setHorizontalAlignment(JTextField.LEFT);
                        northPanel3.add(credit);

                        northPanel3.add(new JLabel("midSemester GPA",JLabel.CENTER));
                        gpa=new JTextField();
                        gpa.setEnabled(false);
                        gpa.setHorizontalAlignment(JTextField.LEFT);
                        northPanel3.add(gpa);

                northPanel2.add(northPanel3,BorderLayout.CENTER);

            upperNorth.add(northPanel2);

        c.add(upperNorth,BorderLayout.NORTH);

        textArea=new JTextArea("");
        textArea.setEditable(false);

        JScrollPane scroll=new JScrollPane(textArea);
        c.add(scroll,BorderLayout.CENTER);

            JPanel lowerPanel=new JPanel();
            lowerPanel.setLayout(new BorderLayout());
                JPanel lowerPanel2=new JPanel();
                lowerPanel2.setLayout(new GridLayout(1,6));

                first=new JButton("First");
                first.addActionListener(this);
                lowerPanel2.add(first);

                previous=new JButton("Previous");
                previous.addActionListener(this);
                lowerPanel2.add(previous);

                next=new JButton("Next");
                next.addActionListener(this);
                lowerPanel2.add(next);

                last=new JButton("Last");
                last.addActionListener(this);
                lowerPanel2.add(last);

                exit=new JButton("Exit");
                exit.addActionListener(this);
                lowerPanel2.add(exit);

                print=new JButton("Print");
                print.addActionListener(this);
                lowerPanel2.add(print);

            lowerPanel.add(lowerPanel2,BorderLayout.CENTER);
        c.add(lowerPanel2,BorderLayout.SOUTH);


            try{
                Scanner inFile=new Scanner(new FileInputStream("sData.txt")) ;
                PrintWriter outFile=new PrintWriter("sDataOut.txt");
                noOfStudents=inFile.nextInt();
                tuitionRate=inFile.nextDouble();
                Student.setTuitionRate(tuitionRate);
                studentList=new Student[noOfStudents];
                for(int i=0;i<noOfStudents;i++)
                    studentList[i]=new Student();
                GradeRepotProgram.getStudentData(inFile, studentList, tuitionRate);
                inFile.close();
            }catch(Exception ex)
            {
                JOptionPane.showMessageDialog(null, ex);
            }

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getSource()==exit)
            System.exit(0);
        if(e.getSource()==next)
        {
            p++;
            if(p>=noOfStudents) p=noOfStudents-1;
            else if(p<0) p=0;
                textArea.setText(studentList[p].toString());
        }
        if(e.getSource()==previous)
        {
            p--;
            if(p>=noOfStudents) p=noOfStudents-1;
            else if(p<0) p=0;
            textArea.setText(studentList[p].toString());
        }
        if(e.getSource()==first)
        {
            p=0;
            textArea.setText(studentList[p].toString());
        }
        if(e.getSource()==last)
        {
            p=noOfStudents-1;
            if(noOfStudents>0)
                textArea.setText(studentList[p].toString());
        }
        if(e.getSource()==print)
        {
            try {
              FileWriter out = new FileWriter("lpt1");
              out.write("Hello world");
              out.write(0x0D); // CR
              out.close();
              }
            catch (Exception ex) {
             // ex.printStackTrace();
              }

        }
    }
}
public class JavaProject {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new StudentFrame();
        // TODO code application logic here
    }
}