Case Western Reserve University Attendance Program to Add Student Grade Exercise I already have attendanc program but I need to add student grade to that p

Case Western Reserve University Attendance Program to Add Student Grade Exercise I already have attendanc program but I need to add student grade to that program import
import
import
import
import
import
import
import
javax.swing.*;
java.awt.*;
java.awt.event.ActionEvent;
java.awt.event.ActionListener;
java.io.BufferedReader;
java.io.FileReader;
java.io.IOException;
java.util.ArrayList;
public class Driver extends JFrame {
public Driver(String title) {
super(title);
ArrayList students = new ArrayList();
read_names(students);
Dimension size = new Dimension(200,200);
setSize(size);
JPanel mainPanel = new JPanel(new FlowLayout());
mainPanel.add(new JLabel(“Attendance System”));
JComboBox studentName = new JComboBox();
for (int i = 0; i < students.size(); i++) { studentName.addItem(students.get(i).getFirstName() + " " + students.get(i).getLastName()); } JComboBox attendance = new JComboBox(); attendance.addItem("P - Present"); attendance.addItem("A - Absent"); attendance.addItem("L - Late"); mainPanel.add(studentName); mainPanel.add(attendance); JButton changeStudents = new JButton("Add Attendance"); changeStudents.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { addAttendance(students, studentName.getSelectedItem().toString(), attendance.getSelectedIndex()); } }); mainPanel.add(changeStudents); JButton showStudents = new JButton("Show Student"); showStudents.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { showStudentsDialog(students, studentName.getSelectedItem().toString()); } }); mainPanel.add(showStudents); add(mainPanel); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } private void read_names(ArrayList students) { try (FileReader reader = new FileReader("students.txt"); BufferedReader br = new BufferedReader(reader)) { // read line by line String line; while ((line = br.readLine()) != null) { Student st = new Student(line.trim().split(";") [0],line.trim().split(";")[1]); students.add(st); } } } catch (IOException e) { System.err.format("IOException: %s%n", e); } private void showStudentsDialog(ArrayList students, String name) { for (int i = 0; i < students.size(); i++) { if ((students.get(i).getFirstName() + " " + students.get(i).getLastName()).equals(name)) { String output = ""; if (students.get(i).limitAbsent()) { output = "Limit Absent -> “;
}
output += ” Name: ” + name;
output += “nPresent: ” + students.get(i).getPresent();
output += “nAbsent: ” + students.get(i).getAbsent();
output += “nLate: ” + students.get(i).getLate();
JOptionPane.showMessageDialog(null, output);
}
}
}
private void addAttendance(ArrayList students, String name, int
attendance) {
for (int i = 0; i < students.size(); i++) { if ((students.get(i).getFirstName() + " " + students.get(i).getLastName()).equals(name)) { if (attendance == 0) { // Present students.get(i).setPresent(); } else if (attendance == 1) { students.get(i).setAbsent(); } else { students.get(i).setLate(); } JOptionPane.showMessageDialog(null, "Student updated!"); } } } } public static void main(String[] args) { Driver d = new Driver("Attendance System"); d.setVisible(true); } public class Student { private private private private private String firstName; String lastName; int present; int absent; int late; public Student(String fn, String ln) { firstName = fn; lastName = ln; absent = 0; present = 0; late = 0; } public void setFirstName(String firstName) { this.firstName = firstName; } public void setLastName(String lastName) { this.lastName = lastName; } public void setPresent() { this.present++; } public void setLate() { this.late++; if (this.late % 2 == 0) { setAbsent(); this.late = 0; } } public void setAbsent() { this.absent++; } public String getFirstName() { return this.firstName; } public String getLastName() { return this.lastName; } public int getPresent() { return this.present; } public int getAbsent() { return this.absent; } public int getLate() { return this.late; } public boolean limitAbsent() { return (this.absent >= 4);
}
}

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