Question

java programming

how would i modify the code below to add a GUI (with a main menu with graphics and buttons, etc...)

and include an option to print a list of all students added in a grid format and short by name, course, instructor, and location.

///main

public static void main(String[] args) {

Scanner in = new Scanner(System.in);
ArrayList<Student>students = new ArrayList<>();
int choice;
while(true)
{
displayMenu();
choice = in.nextInt();
switch(choice)
{
case 1:
in.nextLine();
System.out.println("Enter Student Name");
String name = in.nextLine();
  
System.out.println("Enter Course Name");
String course = in.nextLine();
Course c = new Course();
c.setcourse(course);
  
System.out.println("Enter Instructor Name");
String instructor = in.nextLine();
Instructor i = new Instructor();
i.setinstructor(instructor);
  
System.out.println("Enter Location Name");
String location = in.nextLine();
Location l = new Location();
l.setlocation(location);
  
students.add(new Student(name,c,i,l));
break;

case 2:
in.nextLine();
System.out.println("Enter student name to delete");
String studentName = in.nextLine();
boolean found = false;
for (int j = 0; j<students.size(); j++){
if(students.get(j).getName().equalsIgnoreCase(studentName))
{
} else {
students.remove(j);
System.out.println("Student Removed");
found=true;
}
}
if(!found)
{
System.out.println("Student not found");
}
break;

case 3:
in.nextLine();
boolean found1=false;
System.out.println("Search for:");
String searchStudent = in.nextLine();
for(Student s:students){
if(s.getName().equalsIgnoreCase(searchStudent)){
System.out.print("Student information: \n"+ s);
found1 = true;
}
}
if(!found1)
System.out.println("Student not found");
break;

case 4:
System.exit(0);
break;

}
}
}
  
public static void displayMenu()
{
System.out.print("\nPlease select an option:");
System.out.println("\n1.Add Student \n2.Delete Student \n3.Search for Student \n4.Exit");
  
}

}

///course

class Course {

    String course;

    public String getcourse() {
        return course;
    }
    public void setcourse(String course) {
        this.course = course;
    }
}

///insturctor

class Instructor {

    String instructor;

    public String getinstructor() {
        return instructor;
    }

    public void setinstructor(String instructor) {
        this.instructor = instructor;
    }

}

///location

class Location {

    String location;

    public String getlocation() {
        return location;
    }

    public void setlocation(String location) {
        this.location = location;
    }
}

/////student

public class Student {

    private String name;
    private Course c;
    private Instructor i;
    private Location l;

    public Student(String name ,Course c,Instructor i, Location l)
    {
        this.name = name;
        this.c = c;
        this.i = i;
        this.l = l;
    }

    public String getName() {
        return name;
    }

    @Override
    public String toString() {
        return name + ":" + c.getcourse() + "," + l.getlocation() + ", Proffesor "
                + i.getinstructor();
    }

}

Answer 1

1. Course , Student, Location and instructor classes remain the same.

Added pointers to modify the code to add GUI for menu based system.

We will build GUI using Swings, by importing

import javax.swing.*;

Step 1: Create a container using the JFrame component.

In main function, replace scanner initialization with frame

//Scanner in = new Scanner(System.in); // This code initializes scanner for getting inputs

JFrame frame = new JFrame("My Form"); // Initalize the frame
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300,300);

Step 2: Create a menu bar, you can add options as per the need, adding a basic instructions for now.

//Creating the MenuBar and adding components
JMenuBar mb = new JMenuBar();
JMenu m1 = new JMenu("FILE");
JMenu m2 = new JMenu("Help");
JMenuItem m11 = new JMenuItem("Add Student");
JMenuItem m12 = new JMenuItem("Delete Student");
JMenuItem m13 = new JMenuItem("Search for Student");
JMenuItem m14 = new JMenuItem("Print Students");
mb.add(m1);
mb.add(m2);
m1.add(m11);

m1.add(m12);

m1.add(m13);

m1.add(m14);

Step 3: Create the panel and add it to the frame

 JPanel panel = new JPanel(); // the panel is not visible in output

//Adding Components to the frame.
frame.getContentPane().add(BorderLayout.SOUTH, panel); // Using border layout to place the components
frame.getContentPane().add(BorderLayout.NORTH, mb);

Step 4: Create Text fields and labels and buttons and add them to panel

JLabel label1 = new JLabel("Enter Student Name");
JTextField tf1 = new JTextField(100); 

String name = tf1.getText();

JLabel label2 = new JLabel("Enter Course Name");
JTextField tf2 = new JTextField(100);

String course = tf2.getText();
Course c = new Course();
c.setcourse(course);

JLabel label3 = new JLabel("Enter Instructor Name");
JTextField tf3 = new JTextField(100);

String instructor =tf3 .getText();
Instructor i = new Instructor();
i.setinstructor(instructor);

JLabel label4 = new JLabel("Enter Location Name");
JTextField tf4 = new JTextField(100);

String location = tf4.getText();
Location l = new Location();
l.setlocation(location);

// add the above options to the panel

JButton submit = new JButton("Submit"); // Create the buttons and add it to the panel
JButton reset = new JButton("Reset");
panel.add(label1); // Components Added using default Layout
panel.add(label2); 
panel.add(label3); 
panel.add(label4); 
panel.add(tf1);
panel.add(tf2);
panel.add(tf3);
panel.add(tf4);
panel.add(submit); // submit button
panel.add(reset); // Reset form

// On the similar lines, create panel for all the cases separately and all the components to different panels

Step 5: Add listeners to menu items to switch the panels in the frame, below is example for student menu item

m11.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            addStudent(evt);
        }
    });

// define Function to switch the panel in frame.

private void addStudent(java.awt.event.ActionEvent evt) { 
//Jpanel "Student"
}

Step 6: Add action listeners to button to submit and save or remove the data to arraylist.

Step 7: Set frame to visible

frame.setVisible(true);

To create print panel use a grid layout for the panel and add the data or content as labels