Megan Dollery

A00175050

Java

Lab 7

Task1

Main:

public class main {

public static void main(String[] args){

Window aFrame = new Window("Task1");}

}

Student:

public class Student {

private String name; private String address; private int id;

public Student(String nameParam, String addressParam) {

name = nameParam; address = addressParam; id = this . id ;

} public void setName(String nameParam) {

name = nameParam; } public String getName() {

return name; } public void setAddress(String addressParam) {

address = addressParam; } public String getAddress() {

return address; } public void setID(int idParam) {

id = idParam; }

public int getID() {

return id; }

}

Student Factory:

import java.util.Vector;

public class StudentFactory {

private static StudentFactory theInstance = null;private Vector<Student> v = new Vector<Student>();

private StudentFactory(){

System.out.println("Constructor for factory called");}

public static StudentFactory getInstance(){

if(theInstance == null){

theInstance = new StudentFactory();return theInstance;

}else{

System.out.println("The Factory does already exsist");return theInstance;

}}

public void createStudent(String nameParam, String addressParam){

System.out.println("Creating a Student called "+nameParam);Student aStudent = new Student(nameParam, addressParam);

v.add(aStudent); for(int i = 0; i < v.size(); i++) { aStudent = (Student)v.elementAt(i); aStudent.setID(i);

System.out.println("Students: "+ aStudent.getName());}

}

public void deleteStudent(int idParam){

System.out.println("Deleting Student at "+ idParam);

for(int i = 0; i <= v.size(); i++){

Student aStudent = (Student)v.elementAt(i);

if(aStudent.getID() == idParam){

v.removeElementAt(idParam);break;

}}

}

public void readStudent(int idParam){

System.out.println("Reading a Student at "+ idParam);

for(int i = 0; i <= v.size(); i++){

Student aStudent = (Student)v.elementAt(i);

if(aStudent.getID() == idParam){

String name = aStudent.getName();String address = aStudent.getAddress();

System.out.println("Student Name: " + aStudent.getName());

System.out.println("Student Address: " + aStudent.getAddress());

break;}

}}

public void updateStudent(String nameParam, String addressParam, int idParam)

{System.out.println("Updating a Student called "+ nameParam);

for(int i = 0; i <= v.size(); i++){

Student aStudent = (Student)v.elementAt(i);

if(aStudent.getID() == idParam){

aStudent.setName(nameParam);aStudent.setAddress(addressParam);break;

}}

}}

Window:

import java.awt.event.*;

import javax.swing.*;

import java.awt.GridLayout;

public class Window extends JFrame implements ActionListener

{

private JButton create = new JButton("Create");

private JButton delete = new JButton("Delete");

private JButton read = new JButton("Read");

private JButton update = new JButton("Update");

private StudentFactory theFactory;

public Window(String s)

{

super(s);

getContentPane().setLayout(new GridLayout(2,2));

getContentPane().add(create);

getContentPane().add(read);

getContentPane().add(update);

getContentPane().add(delete);

create.addActionListener(this);

delete.addActionListener(this);

read.addActionListener(this);

update.addActionListener(this);

theFactory = StudentFactory.getInstance();

setSize(300,400);

setVisible(true);

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource().equals(create))

{

CreateWindow aFrame = new CreateWindow("Create");

}

else if(e.getSource().equals(delete))

{

DeleteWindow aFrame = new DeleteWindow("Delete");

}

else if(e.getSource().equals(read))

{

ReadWindow aFrame = new ReadWindow("Read");

}

else if(e.getSource().equals(update))

{

UpdateWindow aFrame = new UpdateWindow("Update");

}

}

}

CreateWindow:

import java.awt.event.*;

import javax.swing.*;

import java.awt.GridLayout;

public class CreateWindow extends JFrame implements ActionListener

{

private JButton ok = new JButton("Ok");

private JButton cancel = new JButton("Cancel");

private JLabel ID = new JLabel("ID: ");

private JTextField IDText = new JTextField();

private JLabel name = new JLabel("Name: ");

private JTextField nameText = new JTextField();

private JLabel address = new JLabel("Address: ");

private JTextField addressText = new JTextField();

private StudentFactory theFactory;

public CreateWindow(String s)

{

super(s);

getContentPane().setLayout(new GridLayout(3,2));

//getContentPane().add(ID);

//getContentPane().add(IDText);

getContentPane().add(name);

getContentPane().add(nameText);

getContentPane().add(address);

getContentPane().add(addressText);

getContentPane().add(cancel);

getContentPane().add(ok);

ok.addActionListener(this);

cancel.addActionListener(this);

theFactory = StudentFactory.getInstance();

setSize(300,400);

setVisible(true);

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource().equals(ok))

{

String name = nameText.getText();

String address = addressText.getText();

theFactory.createStudent(name, address);

JOptionPane.showMessageDialog(new JFrame(), "Student Created.");

}

else if(e.getSource().equals(cancel))

{

this.dispose();

}

}

}

DeleteWindow:

import java.awt.event.*;

import javax.swing.*;

import java.awt.GridLayout;

public class DeleteWindow extends JFrame implements ActionListener{

private JButton ok = new JButton("Ok");private JButton cancel = new JButton("Cancel");private JLabel ID = new JLabel("ID: ");private JTextField IDText = new JTextField();

private StudentFactory theFactory;

public DeleteWindow(String s){

super(s);

getContentPane().setLayout(new GridLayout(3,2));getContentPane().add(ID);getContentPane().add(IDText);getContentPane().add(cancel);getContentPane().add(ok);

ok.addActionListener(this);cancel.addActionListener(this);

theFactory = StudentFactory.getInstance();

setSize(300,400); setVisible(true);

}

public void actionPerformed(ActionEvent e){

if(e.getSource().equals(ok)){

int id = Integer.parseInt(IDText.getText()); theFactory.deleteStudent(id); JOptionPane.showMessageDialog(new JFrame(), "Student Deleted.");

}else if(e.getSource().equals(cancel)){

this.dispose();}

}}

Update Window:

import java.awt.event.*;

import javax.swing.*;

import java.awt.GridLayout;

public class UpdateWindow extends JFrame implements ActionListener{

private JButton ok = new JButton("Ok");private JButton cancel = new JButton("Cancel");private JLabel ID = new JLabel("ID: ");private JTextField IDText = new JTextField();private JLabel Name = new JLabel("Name: ");private JTextField NameText = new JTextField();

private JLabel Address = new JLabel("Address: ");private JTextField AddressText = new JTextField();

private StudentFactory theFactory;

public UpdateWindow(String s){

super(s);

getContentPane().setLayout(new GridLayout(4,2));getContentPane().add(ID);getContentPane().add(IDText);getContentPane().add(Name);getContentPane().add(NameText);getContentPane().add(Address);getContentPane().add(AddressText);getContentPane().add(cancel);getContentPane().add(ok);

ok.addActionListener(this);cancel.addActionListener(this);

theFactory = StudentFactory.getInstance();

setSize(300,400); setVisible(true);

}

public void actionPerformed(ActionEvent e){

if(e.getSource().equals(ok)){

int id = Integer.parseInt(IDText.getText());String name = NameText.getText();String address = AddressText.getText();

theFactory.updateStudent(name, address,id); JOptionPane.showMessageDialog(new JFrame(), "Student Updated.");

}else if(e.getSource().equals(cancel)){

this.dispose();}

}}

Read Window:

import java.awt.event.*;

import javax.swing.*;

import java.awt.GridLayout;

public class ReadWindow extends JFrame implements ActionListener{

private JButton ok = new JButton("Ok");private JButton cancel = new JButton("Cancel");private JLabel ID = new JLabel("ID: ");private JTextField IDText = new JTextField();

private StudentFactory theFactory;private Student aStudent;

public ReadWindow(String s){

super(s);

getContentPane().setLayout(new GridLayout(2,2));getContentPane().add(ID);getContentPane().add(IDText);getContentPane().add(cancel);getContentPane().add(ok);

ok.addActionListener(this);cancel.addActionListener(this);

theFactory = StudentFactory.getInstance();

setSize(300,400); setVisible(true);

}

public void actionPerformed(ActionEvent e){

if(e.getSource().equals(ok)){

int id = Integer.parseInt(IDText.getText());

theFactory.readStudent(id);

JOptionPane.showMessageDialog(new JFrame(), "Student Read.");}else if(e.getSource().equals(cancel)){

this.dispose();}

}}

Sceenshots: