import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class Students {
private String FirstName;
private String LastName;

Students (){}

Students (String FirstName, String LastName){
this.FirstName = FirstName;
this.LastName = LastName;
}

void SetFirstName (String FirstName){
this.FirstName = FirstName;
}

void SetLastName (String LastName){
this.LastName = LastName;
}

String GetFirstName (){
return FirstName;
}

String GetLastName (){
return LastName;
}

int GetLastLength (){
return LastName.length();
}

}//end of class Students 

public class RegisterStudents extends JFrame 
implements ActionListener {//public
Students Student = new Students ();

JButton NewStudent = new JButton ("Add a Student");
JButton DisplayStudent = new JButton ("Display a Student");
JButton Quit = new JButton ("Quit");


 
public RegisterStudents (){// public
super("Register Students");//of JFrame
 
Container Contains = getContentPane();
Contains.setLayout (new GridLayout(5,1,0,40));
setSize (400,500);
setLocation (150,150);

Contains.add (NewStudent);
Contains.add (DisplayStudent);
Contains.add (Quit);
Contains.add (new JLabel(""));

NewStudent.addActionListener(this);
DisplayStudent.addActionListener(this);
Quit.addActionListener(this);

setResizable(false);
setVisible (true);

}

public Insets getInsets (){
return new Insets(40,40,30,40);}

public static void main (String [] arg){
new RegisterStudents();}


public void actionPerformed (ActionEvent e){
Object Phys = e.getSource();
if (Phys == NewStudent){
setVisible (false);
new Registration (Student, this, "Registartion");
setVisible (true);
	}else if (Phys == DisplayStudent){
	setVisible (false);
new Display (Student, this, "Display information");
setVisible (true);
	}else if (Phys == Quit){
	System.exit(0);
	}	
}
}//end of class Register Students



class Registration extends JDialog implements 
ActionListener {
Students Student;

JTextField FirstName = new JTextField ();
JTextField LastName = new JTextField ();
JButton Success = new JButton ("Confirm");


Registration (Students Student, JFrame Table, String Info){
super(Table,Info,true);

JLabel LabelFirstName = new JLabel ("First name:");
JLabel LabelLastName = new JLabel ("Last name:");
Container Cont = getContentPane();
Cont.setLayout(null);

this.Student = Student;
Cont.add(LabelFirstName );
Cont.add(FirstName);
Cont.add(LabelLastName );
Cont.add(LastName);

FirstName.addActionListener(this);
LastName.addActionListener(this);

LabelFirstName.setSize(100,30);
LabelFirstName.setLocation(20,150);
LabelFirstName.setBackground(Color.green);
FirstName.setSize(100,30);
FirstName.setLocation(180,150);

LabelLastName.setSize(100,30);
LabelLastName.setLocation(20,220);
LabelLastName.setBackground(Color.green);
LastName.setSize(100,30);
LastName.setLocation(180,220);

Success.setSize(150,30);
Success.setLocation(150,420);
add(Success);
Success.addActionListener(this);

setSize(420,530);
setLocation(150,150);
setVisible (true);
}

public void actionPerformed (ActionEvent e){
if(e.getSource() == Success){
Student.SetFirstName(FirstName.getText());
Student.SetLastName(LastName.getText());
dispose();}
}

}//end of class Registration


class Display extends JDialog implements ActionListener {
JButton Success = new JButton ("That's OK");

Display ( Students Student, JFrame Table, String Info){
super(Table,Info,true);
Container Cont = getContentPane();
JTextField FirstName = new JTextField();
FirstName.setText(Student.GetFirstName());
FirstName.setEditable (false);

JTextField LastName = new JTextField();
//LastName.setText(Student.GetLastLength()); 



LastName.setText(Student.GetLastName());
LastName.setEditable (false);

JLabel LabelFirstName = new JLabel ("First name:");
JLabel LabelLastName = new JLabel ("Last name:");

Cont.setLayout (null);

add (LabelFirstName);
add (FirstName);
add (LabelLastName);
add (LastName);

LabelFirstName.setSize(100,30);
LabelFirstName.setLocation(20,150);
LabelFirstName.setBackground(Color.green);
FirstName.setSize(100,30);
FirstName.setLocation(180,150);

LabelLastName.setSize(100,30);
LabelLastName.setLocation(20,220);
LabelLastName.setBackground(Color.green);
LastName.setSize(100,30);
LastName.setLocation(180,220);

Success.setSize(150,30);
Success.setLocation(150,420);
add(Success);
Success.addActionListener(this);

setSize(420,530);
setLocation(150,150);
setVisible (true);
}

public void actionPerformed (ActionEvent e){
if(e.getSource() == Success){
dispose();}
}



}//end of class Display

/*
//-----------------------------

import javax.swing.*;
import java.awt.*;
 
public class GridLayout extends JFrame
{
	public static void main(String[] args)
	{
		GridLayout fl = new GridLayout();
	}
 
	public flowlayout()
	{
		JFrame jf1=new JFrame("FlowLayout 1");
 
		jf1.setSize(250, 150);
 
		jf1.setLayout(new FlowLayout());
 
		JButton b1 = new JButton("Button1");
		JButton b2 = new JButton("Button2");
		JButton b3 = new JButton("Button3");
		JButton b4 = new JButton("Button4");
		JButton b5 = new JButton("Button5");
 
		jf1.add(b1);
		jf1.add(b2);
		jf1.add(b3);
		jf1.add(b4);
		jf1.add(b5);
 
		jf1.setVisible(true);
	}
}

*/