// Objects which will be included in the project window

public JMenuBar menuBar; // a menu bar

public JPanel panel1; // a panel

public JPanel panel2; // a panel

public static JPanel contentPane; // this JPanel is static because it is used by the Preferences class to change the background color

public JTextField textfield1; // a text field

public JButton button1; // a button (Add)

public JButton button2; // another button (Save..."

public JButton button3; // anither button (Clear Array)

public JTextArea textarea1; // a text area

public JScrollPane scrollpane1; // a scrollpane for the textarea

public JCheckBox checkbox1; // a checkbox

public JList list;

// Variables linked to the array

static String[] MYARRAY = new String[4];

static int COUNTER = 0;

static String NEWITEM = null;

// Variables linked to the textfile

static String INITIALFILEPATH = "C:\\Users\\robom\\Desktop\\";

static String FILEPATH = INITIALFILEPATH;

/*

* Main

*/

public static void main(String[] args){

System.setProperty("swing.defaultlaf", "com.sun.java.swing.plaf.windows.WindowsLookAndFeel");

javax.swing.SwingUtilities.invokeLater(new Runnable()

{

public void run() {

new MyProject2();

}

});

}

/*

* Constructor

*/

@SuppressWarnings({ "unchecked", "rawtypes" })

public MyProject2(){

this.setTitle("MyProject");

this.setSize(520,420);

// menu generate method

generateMenu();

this.setJMenuBar(menuBar);

// prepare the pane and the controls (2 panels, 1 text area, 1 text field, 1 checkbox and 2 buttons)

contentPane = new JPanel(null);

contentPane.setPreferredSize(new Dimension(520,420));

//System.out.println(contentPane.getBackground()); this is to get the default rgb background color

// First panel (add elements to array)

panel1 = new JPanel(null);

panel1.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(1),"Add elements to array: "));

panel1.setBounds(250,15,200,120);

panel1.setOpaque(false);

panel1.setBackground(new Color(214,217,223));

panel1.setForeground(new Color(0,0,0));

panel1.setEnabled(true);

panel1.setFont(new Font("sansserif",0,12));

panel1.setVisible(true);

// Second panel (save array to file)

panel2 = new JPanel(null);

panel2.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(1),"Save array to file: "));

panel2.setBounds(250,260,200,120);

panel2.setOpaque(false);

//panel2.setBackground(new Color(214,217,223));

panel2.setForeground(new Color(0,0,0));

panel2.setEnabled(true);

panel2.setFont(new Font("sansserif",0,12));

panel2.setVisible(true);

// Text area

textarea1 = new JTextArea();

textarea1.setBounds(55,15,182,366);

textarea1.setBackground(new Color(255,255,255));

textarea1.setForeground(new Color(0,0,0));

textarea1.setMargin(new Insets(5,0,0,0));

textarea1.setEnabled(true);

textarea1.setFont(new Font("sansserif",0,12));

textarea1.setText("");

//textarea1.setBorder(BorderFactory.createBevelBorder(1)); REMOVED

textarea1.setVisible(true);

// Scroll Pane (added to provide scroll bars to the textarea1)

scrollpane1 = new JScrollPane(textarea1);

scrollpane1.setBounds(55,15,182,366);

scrollpane1.setBorder(BorderFactory.createBevelBorder(1));

scrollpane1.setVisible(true);

// Text field

textfield1 = new JTextField();

textfield1.setBounds(260,40,175,24);

textfield1.setBackground(new Color(255,255,255));

textfield1.setForeground(new Color(0,0,0));

textfield1.setEnabled(true);

textfield1.setFont(new Font("sansserif",0,12));

textfield1.setText("");

textfield1.setVisible(true);

// First button (add elements to array)

button1 = new JButton();

button1.setBounds(348,75,88,35);

button1.setBackground(new Color(214,217,223));

button1.setForeground(new Color(0,0,0));

button1.setEnabled(true);

button1.setFont(new Font("sansserif",0,12));

button1.setText("Add Word");

button1.setVisible(true);

button1.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent ae){

addButtonClicked();

}

});

// First button (add elements to array)

button3 = new JButton();

button3.setBounds(260,75,88,35);

button3.setBackground(new Color(214,217,223));

button3.setForeground(new Color(0,0,0));

button3.setEnabled(true);

button3.setFont(new Font("sansserif",0,12));

button3.setText("Clear Array");

button3.setVisible(true);

button3.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent ae) {

clearArrayButtonClicked();

}

});

// Checkbox

checkbox1 = new JCheckBox();

checkbox1.setBounds(260,290,90,35);

checkbox1.setBackground(new Color(214,217,223));

checkbox1.setForeground(new Color(0,0,0));

checkbox1.setEnabled(true);

checkbox1.setFont(new Font("sansserif",0,12));

checkbox1.setText("XML Format");

checkbox1.setToolTipText("Select to save as XML, unselect to save as plain text.");

checkbox1.setVisible(true);

// Second button (Save array to file)

button2 = new JButton();

button2.setBounds(345,330,90,35);

button2.setBackground(new Color(214,217,223));

button2.setForeground(new Color(0,0,0));

button2.setEnabled(true);

button2.setFont(new Font("sansserif",0,12));

button2.setText("Save as...");

button2.setVisible(true);

button2.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent ae){

saveButtonClicked();

}

});

DefaultListModel<String> ItemName = new DefaultListModel<String>();

list = new JList(ItemName);

list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

list.setVisibleRowCount(20);

list.setSelectedIndex(0);

list.setFixedCellHeight(30);

list.setBounds(55,15,182,366);

list.addListSelectionListener(new ListSelectionListener(){

public void valueChanged(ListSelectionEvent a){

System.out.println("List element clicked");

}

});

list.setVisible(true);

//add all components to contentPane panel

contentPane.add(panel1);

contentPane.add(panel2);

contentPane.add(button1);

contentPane.add(button3);

contentPane.add(textfield1);

contentPane.add(checkbox1);

contentPane.add(button2);

contentPane.add(list);

//add panel to JFrame and set window position

this.add(contentPane);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setLocationRelativeTo(null);

this.getRootPane().setDefaultButton(button1);

this.pack();

this.setVisible(true);

this.textfield1.requestFocusInWindow();

}

/*

* Method triggered by the Add Button event...

*/

private void addButtonClicked () {

NEWITEM = textfield1.getText();

if (NEWITEM.compareTo("") != 0){

// Add item to the array

MYARRAY[COUNTER] = NEWITEM;

COUNTER++;

// If counter limit is reached, increase the size of the array

if (COUNTER == MYARRAY.length){

increaseArraySize();

}

//ItemName.addElement(NEWITEM);

this.textfield1.setText("");

this.textfield1.requestFocusInWindow();

}

}

/*

* Method triggered by the Clear Array button event...

*/

private void clearArrayButtonClicked () {

String TEMP[] = new String[4];

MYARRAY = TEMP;

COUNTER = 0;

JOptionPane.showMessageDialog(this,"The array was reset.");

list.clearSelection();

this.textfield1.setText("");

this.textfield1.requestFocusInWindow();

}

/*

* Method triggered by the Save button event...

*/

private void saveButtonClicked () {

FILEPATH = INITIALFILEPATH;

SelectFile('s');

if (FILEPATH !=INITIALFILEPATH) {

WriteTextFile();

}

}

/*

* This method increases the size of the array

*/

private void increaseArraySize(){

String TEMP[] = new String[MYARRAY.length*2];

System.arraycopy(MYARRAY, 0, TEMP, 0, MYARRAY.length);

MYARRAY = TEMP;

JOptionPane.showMessageDialog(this,"Array size increased to " + TEMP.length);

}

/*

* This method writes the elements of the array in a text file using a BufferedWriter object

*/

private void WriteTextFile(){

//System.out.println (">>> Writing text file");

/*

* Some instructions, in this method, are bound directly to the choice made by the user about the XML format.

* How will you handle that ?

* It may have to do with the method checkbox1.isSelected())

*/

try (BufferedWriter MYFILE = new BufferedWriter(new FileWriter(FILEPATH))){ // use (FILEPATH,true) to append to the file

//if (checkbox1.isSelected()) {MYFILE.write("<XML>\r\n");}

//MYFILE.newLine(); REMOVED

for (int ITEM=0;ITEM<COUNTER;ITEM++){

if (checkbox1.isSelected()){

MYFILE.write(convertToXml(MYARRAY[ITEM]));

}else{

MYFILE.write(MYARRAY[ITEM]);

}

MYFILE.newLine();

}

//if (checkbox1.isSelected()) {MYFILE.write("<XML>");}

MYFILE.close();

}catch(Exception e){

System.out.println(e);

return;

}

JOptionPane.showMessageDialog(this,"Writing completed successfully.");

}

/*

* This method reads the content of a text file using a BufferedReader object

*/

private void ReadTextFile(){

//System.out.println (">>> Reading text file");

/*

* This method needs to be completed...

* Think about resetting MYARRAY before you start...

* Think about calling increaseArraySize() when needed...

*/

try (BufferedReader MYFILE = new BufferedReader(new FileReader(FILEPATH))){

clearArrayButtonClicked();

COUNTER = 0;

String LINE = null;

while ((LINE = MYFILE.readLine()) != null){

MYARRAY[COUNTER] = LINE;

COUNTER++;

if (COUNTER == MYARRAY.length) {

increaseArraySize();

}

}

MYFILE.close();

}catch(Exception e){

System.out.println(e);

return;

}

String TEMP = "";

for(int I = 0; I<COUNTER;I++) {

TEMP = TEMP + MYARRAY[I] + "\n";

//ItemName.addElement(TEMP);

}

textfield1.setText("");

textfield1.requestFocusInWindow();

JOptionPane.showMessageDialog(this,"Reading completed successfully.");

}

/*

* This method opens the FileChooser dialog

*/

private void SelectFile(char MODE){

JFileChooser FILECHOOSER = new JFileChooser();

FILECHOOSER.setCurrentDirectory(new File(System.getProperty("user.home")));

FileNameExtensionFilter FILTER;

String EXTENSION;

if(checkbox1.isSelected()) {

FILTER = new FileNameExtensionFilter("XML Files","xml");

EXTENSION = ".xml";

}else{

FILTER = new FileNameExtensionFilter("Text FIles","txt");

EXTENSION = ".txt";

}

FILECHOOSER.addChoosableFileFilter(FILTER);

FILECHOOSER.setFileFilter(FILTER);

int RESULT;

if(MODE =='s') {

RESULT = FILECHOOSER.showSaveDialog(null);

}else{

RESULT = FILECHOOSER.showOpenDialog(null);

}

if (RESULT == JFileChooser.APPROVE_OPTION) {

File selectedFile = FILECHOOSER.getSelectedFile();

FILEPATH = selectedFile.getAbsolutePath();

if (FILEPATH.substring(FILEPATH.length()-4).compareTo(EXTENSION) !=0){

FILEPATH = FILEPATH + EXTENSION;

}

}

}

/*

* This method converts the elements to XML

*/

private String convertToXml(String myString){

String strOutput = "\t<item>" + myString + "</item>";

return(strOutput);

}

/*

* This method generates the menus

*/

public void generateMenu(){

menuBar = new JMenuBar();

JMenu file = new JMenu("File");

JMenu tools = new JMenu("Tools");

JMenu help = new JMenu("Help");

JMenuItem open = new JMenuItem("Open...");

JMenuItem save = new JMenuItem("Save as...");

JMenuItem exit = new JMenuItem("Exit ");

JMenuItem preferences = new JMenuItem("Preferences...");

// add action listener to the Open... menu

open.addActionListener(new ActionListener()

{

public void actionPerformed(ActionEvent evt) {

FILEPATH = INITIALFILEPATH;

SelectFile('r');

if(FILEPATH !=INITIALFILEPATH) {

ReadTextFile();

}

}

});

// add action listener to the Save... menu

save.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent evt) {

FILEPATH = INITIALFILEPATH;

SelectFile('s');

if (FILEPATH !=INITIALFILEPATH) {

WriteTextFile();

}

}

});

// add action listener to the Exit... menu

exit.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent event) {

System.exit(0);

}

});

// add action listener to the Preferences... menu

preferences.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent pref){

System.setProperty("swing.defaultlaf", "com.sun.java.swing.plaf.window.WindowLookAndFeel");

javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

new Preferences();

}

});

}

});

file.add(open);

file.add(save);

file.addSeparator();

file.add(exit);

tools.add(preferences);

menuBar.add(file);

menuBar.add(tools);

menuBar.add(help);

}