Need HELP with objects and classes problem (program compiles)

Alright guys, it is a homework problem but I have definitely put in the work. I believe I have everything right except for the toString method in my Line class. The program compiles and runs but I am not getting the right outcome and I am missing parts. I will post my problems after the code. I will post the assignment (sorry, its long) also. If anyone could help I would appreciate it. It is due on Monday so I am strapped for time.
Assignment:
-There are two ways to uniquely determine a line represented by the equation y=ax+b, where a is the slope and b is the yIntercept.
a)two diffrent points
b)a point and a slope
!!!write a program that consists of three classes:
1)Point class: all data MUST be private
a)MUST contain the following methods:
a1)public Point(double x, double y)
a2)public double x ()
a3public double y ()
a4)public String toString () : that returns the point in the format "(x,y)"
2)Line class: all data MUST be private
b)MUST contain the following methods:
b1)public Line (Point point1, Point point2)
b2)public Line (Point point1, double slope)
b3)public String toString() : that returns the a text description for the line is y=ax+b format
3)Point2Line class
c1)reads the coordinates of a point and a slope and displays the line equation
c2)reads the coordinates of another point (if the same points, prompt the user to change points) and displays the line equation
***I will worry about the user input later, right now I am using set coordinates
What is expected when the program is ran: example
please input x coordinate of the 1st point: 5
please input y coordinate of the 1st point: -4
please input slope: -2
the equation of the 1st line is: y = -2.0x+6.0
please input x coordinate of the 2nd point: 5
please input y coordinate of the 2nd point: -4
it needs to be a diffrent point from (5.0,-4.0)
please input x coordinate of the 2nd point: -1
please input y coordinate of the 2nd point: 2
the equation of the 2nd line is: y = -1.0x +1.0
CODE::
public class Point{
     private double x = 0;
     private double y = 0;
     public Point(){
     public Point(double x, double y){
          this.x = x;
          this.y = y;
     public double getX(){
          return x;
     public double setX(){
          return this.x;
     public double getY(){
          return y;
     public double setY(){
          return this.y;
     public String toString(){
          return "The point is " + this.x + ", " + this.y;
public class Line
     private double x = 0;
     private double y = 0;
     private double m = 0;
     private double x2 = 0;
     private double y2 = 0;
     public Line()
     public Line (Point point1, Point point2)
          this.x = point1.getX();
          this.y = point1.getY();
          this.x2 = point2.getX();
          this.y2 = point2.getY();
          this.m = slope(point1, point2);
     public Line (Point point1, double slope)
          this.x = point1.getX();
          this.y = point1.getY();
     public double slope(Point point1, Point point2)//finds slope
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
public class Point2Line
     public static void main(String[]args)
          Point p = new Point(3, -3);
          Point x = new Point(10, 7);
          Line l = new Line(p, x);
          System.out.println(l.toString());
}My problems:
I dont have the right outcome due to I don't know how to set up the toString in the Line class.
I don't know where to put if statements for if the points are the same and you need to prompt the user to put in a different 2nd point
I don't know where to put in if statements for the special cases such as if the line the user puts in is a horizontal or vertical line (such as x=4.7 or y=3.4)
Edited by: ta.barber on Apr 20, 2008 9:44 AM
Edited by: ta.barber on Apr 20, 2008 9:46 AM
Edited by: ta.barber on Apr 20, 2008 10:04 AM

Sorry guys, I was just trying to be thorough with the assignment. Its not that if the number is valid, its that you cannot put in the same coordinated twice.
public class Line
     private double x = 0;
     private double y = 0;
     private double m = 0;
     private double x2 = 0;
     private double y2 = 0;
     public Line()
     public Line (Point point1, Point point2)
          this.x = point1.getX();
          this.y = point1.getY();
          this.x2 = point2.getX();
          this.y2 = point2.getY();
          this.m = slope(point1, point2);
     public Line (Point point1, double slope)
          this.x = point1.getX();
          this.y = point1.getY();
     public double slope(Point point1, Point point2)//finds slope
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
public class Point2Line
     public static void main(String[]args)
          Point p = new Point(3, -3);
          Point x = new Point(10, 7);
          Line l = new Line(p, x);
          System.out.println(l.toString());
}The problem is in these lines of code.
public double slope(Point point1, Point point2) //if this method finds the slope than how would i use the the two coordinates plus "m1" to
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
     }if slope method finds the slope than how would i use the the two coordinates + "m1" to create a the line in toString?

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                        gradeC.setEditable(true);
                        gradeD.setEditable(true);
                        gradeE.setEditable(true);
              /**class PreviousBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        if (i <= 0){
                             i = 0;
                        }else if(i > 0){
                             i = i-1;
              class DoneBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        output = "Results \n";
                        output+= studentName[i]+" Assignment Average = "+averageO[i]+" Exam Average = "+averageT[i]+" Overall average = ";
                        output+= tAverage[i]+" Letter Grade = "+letterGrade;
              class NextBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        String [] studentName = new String [40];
                        double [] assignOne = new double [40];
                        double [] assignTwo = new double [40];
                        double [] assignThree = new double [40];
                        double [] gradeOne = new double [40];
                        double [] gradeTwo = new double [40];
                        double [] averageO = new double [40];
                        double [] averageT = new double [40];
                        double [] tAverage = new double [40];
                        char [] letterGrade = new char [40];
                        double max = 0;
                        double min = 100;
                        int i = 0;
                        while(i < studentName.length){
                             studentName[i] = studentsName.getText();
                             studentsName.setText(studentName[i]);
                             String aOne = assignmentOne.getText();
                             assignOne[i] = Double.parseDouble(aOne);
                             assignmentOne.setText(assignOne[i]);
                             String aTwo = assignmentTwo.getText();
                             assignTwo[i] = Double.parseDouble(aTwo);
                             assignmentTwo.setText(assignTwo[i]);
                             String aThree = assignmentThree.getText();
                             assignThree[i] = Double.parseDouble(aThree);
                             assignmentThree.setText(assignThree[i]);
                             String gOne = examOne.getText();
                             gradeOne[i] = Double.parseDouble(gOne);
                             examOne.setText(gradeOne[i]);
                             String gTwo = examTwo.getText();
                             gradeTwo = Double.parseDouble(gTwo);
                             examTwo.setText(gradeTwo[i]);
                             averageO[i] = (assignOne[i]+assignTwo[i]+assignThree[i])/3;
                             averageT[i] = (gradeOne[i]+gradeTwo[i])/2;
                             tAverage[i] = (averageO[i]+averageT[i])/2;
                             if (tAverage[i] >= gradeA){
                                  letterGrade[i] = 'A';
                             }else if(tAverage[i] >= gradeB){
                                  letterGrade[i] = 'B';
                             }else if(tAverage[i] >= gradeC){
                                  letterGrade[i] = 'C';
                             }else if(tAverage[i] >= gradeD){
                                  letterGrade[i] = 'D';
                             }else if(tAverage[i] <= gradeE){
                                  letterGrade[i] = 'E';
              public static void main(String[]args){
                   GradeCalculator calWindow = new GradeCalculator();
                   calWindow.setVisible(true);

    i have to apologize to jittei for the misunderstand i do not know which defination of terms is for which line of code but i know what they do, to solve the problem i have actually made another class in the workspace file called students and now all the bottons work, all i have to do now is properly arrange and put in some additional lines of code and it will be completed. teacher gave me the idea of putting in a new class to help in calling codes from other subclasses in the main program. ah well guess non of you could think of that thanks for the help-ish and hope yall will atleast try to be nice to new people that come in the room. the new coding is:
    of course all the commented out lines are not being used in the program anymore but just there till i have the program working with everything in it runs and performs the actions required now though ^_^
    *Group CAPE Computer Science 2007/8
    *GradeCalculator.java
    *@author Carlson Smith
    *@version 3.01          07/02/2008
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    public class GradeCalculator extends JFrame {
         private JTextField gradeA = new JTextField(3);
         private JTextField gradeB = new JTextField(3);
         private JTextField gradeC = new JTextField(3);
         private JTextField gradeD = new JTextField(3);
         private JTextField gradeE = new JTextField(3);
         private JTextField studentsName = new JTextField(15);
         private JTextField assignmentOne = new JTextField(5);
         private JTextField assignmentTwo = new JTextField(5);
         private JTextField assignmentThree = new JTextField(5);
         private JTextField examOne = new JTextField(5);
         private JTextField examTwo = new JTextField(5);
         private JTextArea  textOutput;
         private JPanel buttonJPanel;
         private JPanel buttonJPanelTwo;
         private Student [] students = new Student[40];
         private int current = 0;
         private String output;
         public GradeCalculator(){
              JMenu fileMenu = new JMenu("File");
              JMenuItem aboutItem = new JMenuItem( "About" );
              for (int i=0;i<40;i++){
                   students[i] = new Student("");
            fileMenu.add( aboutItem );
            aboutItem.addActionListener(
               new ActionListener()
                  public void actionPerformed( ActionEvent event )
                     JOptionPane.showMessageDialog( GradeCalculator.this,
                        "Grade Calculator Version 1.00. \nMade by Carlson Smith.\nSchool: Pre-University\nSubject: Cape Computer Science.",
                        "About", JOptionPane.PLAIN_MESSAGE );
              JMenuItem exitItem = new JMenuItem( "Exit" ); 
            fileMenu.add( exitItem );
            exitItem.addActionListener(
               new ActionListener()
                  public void actionPerformed( ActionEvent event )
                     System.exit( 0 );
              JMenuBar bar = new JMenuBar();
              setJMenuBar(bar);
              bar.add(fileMenu);     
              JTabbedPane tabbedPane = new JTabbedPane();
              buttonJPanel = new JPanel();
              buttonJPanel.setLayout(new GridLayout(1,2));
              JButton ok = new JButton("OK");
              ok.addActionListener(new OkBtnListener());
              JButton edit = new JButton("EDIT");
              edit.addActionListener(new EditBtnListener());
              buttonJPanelTwo = new JPanel();
              buttonJPanelTwo.setLayout(new GridLayout(1,3));
              JButton previous = new JButton("PREVIOUS");
              previous.addActionListener(new PreviousBtnListener());
              JButton done = new JButton("DONE");
              done.addActionListener(new DoneBtnListener());
              JButton next = new JButton("NEXT");
              next.addActionListener(new NextBtnListener());
              JPanel contentPane = new JPanel();
              contentPane.setLayout(new FlowLayout());
              contentPane.add(new JLabel("Grade A")/**,BorderLayout.NORTH*/);
              contentPane.add(gradeA/**,BorderLayout.NORTH*/);
              contentPane.add(new JLabel("Grade B")/**,BorderLayout.WEST*/);
              contentPane.add(gradeB/**,BorderLayout.WEST*/);
              contentPane.add(new JLabel("Grade C")/**,BorderLayout.WEST*/);
              contentPane.add(gradeC/**,BorderLayout.WEST*/);
              contentPane.add(new JLabel("Grade D")/**,BorderLayout.WEST*/);
              contentPane.add(gradeD/**,BorderLayout.WEST*/);
              contentPane.add(new JLabel("Grade E")/**,BorderLayout.WEST*/);
              contentPane.add(gradeE/**,BorderLayout.WEST*/);
              tabbedPane.addTab("Grade Entry Tab", null, contentPane, "Grade Tab");
              //contentPane.add(ok,BorderLayout.WEST);
              //contentPane.add(edit,BorderLayout.WEST);
              buttonJPanel.add(ok);
              buttonJPanel.add(edit);
              contentPane.add(buttonJPanel, BorderLayout.WEST);
              JPanel content = new JPanel();
              content.setLayout(new FlowLayout());
              content.add(new JLabel("Student's Name")/**,BorderLayout.EAST*/);
              content.add(studentsName/**,BorderLayout.EAST*/);
              content.add(new JLabel("Assignment 1 score:")/**,BorderLayout.EAST*/);
              content.add(assignmentOne/**,BorderLayout.EAST*/);
              content.add(new JLabel("Assignment 2 score:")/**,BorderLayout.EAST*/);
              content.add(assignmentTwo/**,BorderLayout.EAST*/);
              content.add(new JLabel("Assignment 3 score:")/**,BorderLayout.EAST*/);
              content.add(assignmentThree/**,BorderLayout.EAST*/);
              content.add(new JLabel("Exam 1 score:")/**,BorderLayout.EAST*/);
              content.add(examOne/**,BorderLayout.EAST*/);
              content.add(new JLabel("Exam 2 score:")/**,BorderLayout.EAST*/);
              content.add(examTwo/**,BorderLayout.EAST*/);
              //content.add(previous,BorderLayout.EAST);
              //content.add(done,BorderLayout.EAST);
              //content.add(next,BorderLayout.EAST);
              buttonJPanelTwo.add(previous);
              buttonJPanelTwo.add(done);
              buttonJPanelTwo.add(next);
              content.add(buttonJPanelTwo, BorderLayout.EAST);
              Box box = Box.createVerticalBox();
              //String outputTwo = output;
              //textOutput.setText(output);
              textOutput = new JTextArea(output,10,30);
              box.add(new JScrollPane(textOutput));
              //textOutput.setEditable(true);
              content.add(box,BorderLayout.SOUTH);
              tabbedPane.addTab("Calculator Tab", null, content, "Calculation & Output Tab");
              setContentPane(tabbedPane);
              pack();
              setTitle("Grade Calculator");
              setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              setLocationRelativeTo(null);
              class OkBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        String gradeAA = gradeA.getText();
                        double gradA = Double.parseDouble(gradeAA);
                        gradeA.setText(" "+gradA);
                        String gradeBB = gradeB.getText();
                        double gradB = Double.parseDouble(gradeBB);
                        gradeB.setText(" "+gradB);
                        String gradeCC = gradeC.getText();
                        double gradC = Double.parseDouble(gradeCC);
                        gradeC.setText(" "+gradC);
                        String gradeDD = gradeD.getText();
                        double gradD = Double.parseDouble(gradeDD);
                        gradeD.setText(" "+gradD);
                        String gradeEE = gradeE.getText();
                        double gradE = Double.parseDouble(gradeEE);
                        gradeE.setText(" "+gradE);
                        gradeA.setEditable(false);
                        gradeB.setEditable(false);
                        gradeC.setEditable(false);
                        gradeD.setEditable(false);
                        gradeE.setEditable(false);
              class EditBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        gradeA.setEditable(true);
                        gradeB.setEditable(true);
                        gradeC.setEditable(true);
                        gradeD.setEditable(true);
                        gradeE.setEditable(true);
              class PreviousBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        Student currentStudent = students[current];
                        currentStudent.setStudentName(studentsName.getText());          
                        currentStudent.setAssignOne(Double.parseDouble(assignmentOne.getText()));
                        currentStudent.setAssignTwo(Double.parseDouble(assignmentTwo.getText()));
                        currentStudent.setAssignThree(Double.parseDouble(assignmentThree.getText()));
                        currentStudent.setExamOneGrade(Double.parseDouble(examOne.getText()));
                        currentStudent.setExamTwoGrade(Double.parseDouble(examTwo.getText()));
                        currentStudent = students[current];
                        if (current <= 0){
                             current = 0;
                        }else if(current > 0){
                             current = current-1;
                        refresh();               
                        System.out.println(current);
              class DoneBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
                        Student currentStudent = students[current];
                        //output = "Result \n";
                        output = currentStudent.getStudentName()+". Assignment Average = "+currentStudent.getAverage()+". Exam Average = "+currentStudent.getExamAverage()+". Overall average = ";
                        output+= currentStudent.getTotalAverage()/**+" Letter Grade = "+letterGrade[current]*/;
                        textOutput.setText(output);
                        System.out.println(output);
                        currentStudent = students[current];
              class NextBtnListener implements ActionListener{
                   public void actionPerformed(ActionEvent e){
    //                    String [] studentName = new String [40];
    //                    double [] assignOne = new double [40];
    //                    double [] assignTwo = new double [40];
    //                    double [] assignThree = new double [40];
    //                    double [] gradeOne = new double [40];
    //                    double [] gradeTwo = new double [40];
    //                    double [] averageO = new double [40];
    //                    double [] averageT = new double [40];
    //                    double [] tAverage = new double [40];
    //                    char [] letterGrade = new char [40];
                        //double max = 0;
                        //double min = 100;
                        Student currentStudent = students[current];
                        currentStudent.setStudentName(studentsName.getText());
                        currentStudent.setAssignOne(Double.parseDouble(assignmentOne.getText()));
                        currentStudent.setAssignTwo(Double.parseDouble(assignmentTwo.getText()));
                        currentStudent.setAssignThree(Double.parseDouble(assignmentThree.getText()));
                        currentStudent.setExamOneGrade(Double.parseDouble(examOne.getText()));
                        currentStudent.setExamTwoGrade(Double.parseDouble(examTwo.getText()));
    //                    currentStudent = students[current];
                        current++;
                        refresh();
    /**                    while(i < studentName.length){
                             String aOne = assignmentOne.getText();
                             assignOne[i] = Double.parseDouble(aOne);
                             assignmentOne.setText(" "+assignOne);
                             String aTwo = assignmentTwo.getText();
                             assignTwo[i] = Double.parseDouble(aTwo);
                             assignmentTwo.setText(" "+assignTwo[i]);
                             String aThree = assignmentThree.getText();
                             assignThree[i] = Double.parseDouble(aThree);
                             assignmentThree.setText(" "+assignThree[i]);
                             String gOne = examOne.getText();
                             gradeOne[i] = Double.parseDouble(gOne);
                             examOne.setText(" "+gradeOne[i]);
                             String gTwo = examTwo.getText();
                             gradeTwo[i] = Double.parseDouble(gTwo);
                             examTwo.setText(" "+gradeTwo[i]);
                             averageO[i] = (assignOne[i]+assignTwo[i]+assignThree[i])/3;
                             averageT[i] = (gradeOne[i]+gradeTwo[i])/2;
                             tAverage[i] = (averageO[i]+averageT[i])/2;
                             if (tAverage[i] >= Double.parseDouble(gradeA.getText())){
                                  letterGrade[i] = 'A';
                             }else if(tAverage[i] >= Double.parseDouble(gradeB.getText())){
                                  letterGrade[i] = 'B';
                             }else if(tAverage[i] >= Double.parseDouble(gradeC.getText())){
                                  letterGrade[i] = 'C';
                             }else if(tAverage[i] >= Double.parseDouble(gradeD.getText())){
                                  letterGrade[i] = 'D';
                             }else if(tAverage[i] <= Double.parseDouble(gradeE.getText())){
                                  letterGrade[i] = 'E';
              public void refresh(){
                   Student currentStudent = students[current];
                   studentsName.setText(currentStudent.getStudentName());
                   assignmentOne.setText(currentStudent.getAssignOne()+"");
                   assignmentTwo.setText(currentStudent.getAssignTwo()+"");
                   assignmentThree.setText(currentStudent.getAssignThree()+"");
                   examOne.setText(currentStudent.getExamOneGrade()+"");
                   examTwo.setText(currentStudent.getExamTwoGrade()+"");
              public static void main(String[]args){
                   GradeCalculator calWindow = new GradeCalculator();
                   calWindow.setVisible(true);
    Second class implemented./**
    *Group CAPE Computer Science 2007/8
    *Student.java
    *@author Carlson Smith
    *@version 3.01          07/02/2008
    public class Student {
         private String studentName;
         private double assignOne;
         private double assignTwo;
         private double assignThree;
         private double examOneGrade;
         private double examTwoGrade;
         public Student(String sName){
              studentName = sName;     
         public String getStudentName(){
              return studentName;
         public double getAssignOne(){
              return assignOne;
         public double getAssignTwo(){
              return assignTwo;
         public double getAssignThree(){
              return assignThree;
         public double getExamOneGrade(){
              return examOneGrade;
         public double getExamTwoGrade(){
              return examTwoGrade;
         public void setStudentName(String sName){
              studentName = sName;
         public void setAssignOne(double assignOne){
              this.assignOne = assignOne;
         public void setAssignTwo(double assignTwo){
              this.assignTwo = assignTwo;
         public void setAssignThree(double assignThree){
              this.assignThree = assignThree;
         public void setExamOneGrade(double examOneGrade){
              this.examOneGrade = examOneGrade;
         public void setExamTwoGrade(double examTwoGrade){
              this.examTwoGrade = examTwoGrade;
         public double getAverage(){
              return (assignOne + assignTwo + assignThree)/3;
         public double getExamAverage(){
              return (examOneGrade + examTwoGrade)/2;
         public double getTotalAverage(){
              return (getAverage() + getExamAverage())/2;
    this thread can be closed now. l8rz :P
    Edited by: Jacal on Feb 10, 2008 7:28 AM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

  • Need help with JFormattedTextField and DocumentListener

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    import java.awt.event.*;
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    import javax.swing.text.*;
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    DI 75..84
    CR 65..74
    PS 50..64
    FL 0..49
    Part2 Client Code
    Write a program in a file called "TestStudent.java"
    Make sure the file is in the same directory as tne "Student.java" file
    In the main method of "TestStudent.java" write code to do each of the following tasks
    1 Create a student object using the no argument constructor.
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    3 Create another student object using the other constructor-supply your own name as the string argument and whatever exam mark you like as the double argument
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    Can someone please help
    goober

    Sorry, I have sent you the wrong version. Try this,
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              st1.setExamMark(67);
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              System.out.println("Student Grade is : "+st1.getGrade());
              st1.setExamMark(256);
              System.out.println("Student Marks is : "+st1.getExamMark());
              System.out.println("Student Grade is : "+st1.getGrade());
    }Hope this helps.
    Sudha

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