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

public class FavMusic extends JFrame implements ActionListener
{
    //construct components
    JTextPane textPane = new JTextPane();

    //initialize data in arrays
    String artistName[] = {"Metallica", "Guns N Roses", "Dr Dre", "Soul Asylum"};
    String genre[] = {"Heavy Metal", "Heavy Metal", "Rap", "Rock"};
    String greatestHit[] = {"One", "Don't Cry", "Chronic", "Run Away Train"};
    String recordLabel[] = {"Def Jams", "Sony", "DeathRow","Artista"};

    //construct instance of FavMusic
    public FavMusic()
    {
        super("Favorite Music");
    }

    //create the menu system
    public JMenuBar createMenuBar()
    {
        //create an instance of the the menu
        JMenuBar mnuBar = new JMenuBar();
        setJMenuBar(mnuBar);

        //construct and populate the file menu
        JMenu mnuFile = new JMenu("File", true);
            mnuFile.setMnemonic(KeyEvent.VK_F);
            mnuFile.setDisplayedMnemonicIndex(0);
            mnuBar.add(mnuFile);

        JMenuItem mnuFileExit = new JMenuItem("Exit");
            mnuFileExit.setMnemonic(KeyEvent.VK_X);
            mnuFileExit.setDisplayedMnemonicIndex(1);
            mnuFile.add(mnuFileExit);
            mnuFileExit.setActionCommand("Exit");
            mnuFileExit.addActionListener(this);

        //construct and populate the Edit menu
        JMenu mnuEdit = new JMenu("Edit", true);
            mnuEdit.setMnemonic(KeyEvent.VK_E);
            mnuEdit.setDisplayedMnemonicIndex(0);
            mnuBar.add(mnuEdit);

        JMenuItem mnuEditInsert = new JMenuItem("Insert New Music");
            mnuEditInsert.setMnemonic(KeyEvent.VK_I);
            mnuEditInsert.setDisplayedMnemonicIndex(0);
            mnuEdit.add(mnuEditInsert);
            mnuEditInsert.setActionCommand("Insert");
            mnuEditInsert.addActionListener(this);

        JMenu mnuEditSort = new JMenu("Sort");
            mnuEditSort.setMnemonic(KeyEvent.VK_R);
            mnuEditSort.setDisplayedMnemonicIndex(3);
            mnuEdit.add(mnuEditSort);

        JMenuItem mnuEditSortByartistName = new JMenuItem("by Artist");
            mnuEditSortByartistName.setMnemonic(KeyEvent.VK_T);
            mnuEditSortByartistName.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByartistName);
            mnuEditSortByartistName.setActionCommand("artistName");
            mnuEditSortByartistName.addActionListener(this);

        JMenuItem mnuEditSortByGenre =  new JMenuItem("by Genre");
            mnuEditSortByGenre.setMnemonic(KeyEvent.VK_S);
            mnuEditSortByGenre.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByGenre);
            mnuEditSortByGenre.setActionCommand("genre");
            mnuEditSortByGenre.addActionListener(this);

        JMenuItem mnuEditSortBygreatestHit = new JMenuItem("by Greatest Hit");
            mnuEditSortBygreatestHit.setMnemonic(KeyEvent.VK_Y);
            mnuEditSortBygreatestHit.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortBygreatestHit);
            mnuEditSortBygreatestHit.setActionCommand("greatestHit");
            mnuEditSortBygreatestHit.addActionListener(this);

        JMenuItem mnuEditSortByrecordLabel = new JMenuItem("by Record Label");
            mnuEditSortByrecordLabel.setMnemonic(KeyEvent.VK_T);
            mnuEditSortByrecordLabel.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByrecordLabel);
            mnuEditSortByrecordLabel.setActionCommand("recordLabel");
            mnuEditSortByrecordLabel.addActionListener(this);

        return mnuBar;
    }

    //create the content pane
    public Container createContentPane()
    {
            //create the JTextPane and center panel
            JPanel centerPanel = new JPanel();
                setTabsAndStyles(textPane);
                textPane = addTextToTextPane();
                JScrollPane scrollPane = new JScrollPane(textPane);
                    scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                    scrollPane.setPreferredSize(new Dimension(500, 200));
                    scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
                    scrollPane.setPreferredSize(new Dimension(500, 200));
                centerPanel.add(scrollPane);

            //create container and set attributes
            Container c = getContentPane();
                c.setLayout(new BorderLayout(1,5));
                //c.add(northPanel, BorderLayout.NORTH);
                c.add(centerPanel, BorderLayout.CENTER);

            return c;
        }

        //method to create tabe stops and set font style
        protected void setTabsAndStyles(JTextPane textPane)
        {
            //create Tab Stops
            TabStop[] tabs = new TabStop[2];
                tabs[0] = new TabStop(200, TabStop.ALIGN_LEFT, TabStop.LEAD_NONE);
                tabs[1] = new TabStop(350, TabStop.ALIGN_LEFT, TabStop.LEAD_NONE);
            TabSet tabset = new TabSet(tabs);

            //set Tab Style
            StyleContext tabStyle = StyleContext.getDefaultStyleContext();
            AttributeSet aset =
                tabStyle.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.TabSet, tabset);
            textPane.setParagraphAttributes(aset, false);

            //set font style
            Style fontStyle =
                StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);

            Style regular = textPane.addStyle("regular", fontStyle);
            StyleConstants.setFontFamily(fontStyle, "SansSerif");

            Style s = textPane.addStyle("italic", regular);
            StyleConstants.setItalic(s, true);

            s = textPane.addStyle("bold", regular);
            StyleConstants.setBold(s, true);

            s = textPane.addStyle("large", regular);
            StyleConstants.setFontSize(s, 16);
        }

        //method to add new text to the JTextpane
        public JTextPane addTextToTextPane()
        {
            Document doc = textPane.getDocument();
            try
            {
                //clear previous text
                doc.remove(0, doc.getLength());

                //insert artistName
                doc.insertString(0, "Artist\tGenre\tGreatest Hit\tRecord Label\n", textPane.getStyle("large"));

                //insert detail
                for (int j = 0; j < artistName.length; j++)
                {
                    doc.insertString(doc.getLength(), artistName[j] + "\t",
                    textPane.getStyle("bold"));
                    doc.insertString(doc.getLength(), genre[j] + "\t", textPane.getStyle("italic"));
                    doc.insertString(doc.getLength(), greatestHit[j] + "\t", textPane.getStyle("regular"));
                    doc.insertString(doc.getLength(), recordLabel[j] + "\t", textPane.getStyle("regular"));
                }
            }
            catch (BadLocationException ble)
            {
                System.err.println("Couldn't insert text.");
            }
            return textPane;
        }
2
        //event to process user clicks
                public void actionPerformed(ActionEvent e)
                {
                    String arg = e.getActionCommand();

                    //user clicks the sort by combo box
                    if (arg == "Sort")
                    {
                        switch(e.getSelectedIndex())
                        {
                            case 0:
                                sort(artistName);
                                break;
                            case 1:
                                sort(genre);
                                break;
                            case 2:
                                sort(greatestHit);
                                break;
                        }
                    }

                    //user clicks exit on the file menu
                    if (arg == "Exit")
                        System.exit(0);

                    //user clicks Insert New FavMusic on the edit menu
                    if (arg == "Insert")
                    {
                        //accept new data
                        String newartistName = JOptionPane.showInputDialog(null, "Please enter the movie's new Artist");
                        String newGenre = JOptionPane.showInputDialog(null, "Please enter the genre for " + newartistName);
                        String newgreatestHit = JOptionPane.showInputDialog(null, "Please enter the Greatest Hit for for " + newartistName);
                        String newrecordLabel = JOptionPane.showInputDialog(null, "Please enter the Record Label for for " + newartistName);

                        //enlarge array
                        artistName = enlargeArray(artistName);
                        genre = enlargeArray(genre);
                        greatestHit = enlargeArray(greatestHit);
                        recordLabel = enlargeArray(recordLabel);

                        //add new data to arrays
                        artistName[artistName.length-1] = newartistName;
                        genre[genre.length-1] = newGenre;
                        greatestHit[greatestHit.length-1] = newgreatestHit;
                        recordLabel[recordLabel.length-1] = newrecordLabel;

                        //call sort method
                        sort(artistName);
                        //fieldCombo.setSelectedIndex(0);
                    }

                    //user clicks artistName on the search submenu
                    //if (arg == "artistName")
                    //    sort(arg, artistName);

                    //user clicks genre on the search submenu
                    //if (arg == "genre")
                    //    sort(arg, genre);

                    //user clicks greatestHit on the search submenu
                    //if (arg == "greatestHit")
                    //    sort(arg, greatestHit);

                    //user clicks recordLabel on the search submenu
                    //if (arg == "recordLabel")
                    //    sort(arg, recordLabel);
                }


        //method to enlarge an array by 1
        public String[] enlargeArray(String[] currentArray)
        {
            String[] newArray = new String[currentArray.length + 1];
            for (int i = 0; i < currentArray.length; i++)
                newArray[i] = currentArray[i];
            return newArray;
        }

        //method to sort arrays
        public void sort(String tempArray[])
        {
            //loop to control number of passes
            for (int pass = 1; pass <tempArray.length; pass++)
            {
                for (int element = 0; element < tempArray.length - 1; element ++)
                    if (tempArray[element].compareTo(tempArray[element + 1]) > 0)
                    {
                        swap (artistName, element, element + 1);
                        swap (genre, element, element + 1);
                        swap (greatestHit, element, element + 1);
                        swap (recordLabel, element, element + 1);
                    }
            }
            addTextToTextPane();
        }

        //method to swap two elements of an array
        public void swap(String swapArray[], int first, int second)
        {
            String hold;  //temporary area for swap
            hold = swapArray[first];
            swapArray[first] = swapArray[second];
            swapArray[second] = hold;
        }

        public void search(String searchField, String searchArray[])
        {
            try
            {
                Document doc = textPane.getDocument(); //assign text to document object
                doc.remove(0, doc.getLength()); //clear previous text

                //display column artistName
                doc.insertString(0,"Artist\tGenre\tGreatest Hit\n", textPane.getStyle("large"));

                //prompt user for search data
                String search = JOptionPane.showInputDialog(null, "Please enter the " + searchField);
                boolean found = false;

                //search arrays
                for (int i = 0; i < artistName.length; i++)
                {
                    if (search.compareTo(searchArray[i]) == 0)
                    {
                    doc.insertString(doc.getLength(), artistName[i] + "\t", textPane.getStyle ("bold"));
                    doc.insertString(doc.getLength(), genre[i] + "\t", textPane.getStyle("italic"));
                    doc.insertString(doc.getLength(), greatestHit[i] + "\n", textPane.getStyle("regular"));
                    doc.insertString(doc.getLength(), recordLabel[i] + "\n", textPane.getStyle("regular"));
                    found = true;
                    }
                }
                if (found == false)
                {
                    JOptionPane.showMessageDialog(null, "Your search produced no results.", "no results found", JOptionPane.INFORMATION_MESSAGE);
                    sort(artistName);
                }
            }
                catch (BadLocationException ble)
                {
                    System.err.println("Couldn't insert text.");
                }
         }

         //main method executes at run time
         public static void main(String arg[])
         {
             JFrame.setDefaultLookAndFeelDecorated(true);
             FavMusic f = new FavMusic();
             f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
             f.setJMenuBar(f.createMenuBar());
             f.setContentPane(f.createContentPane());
             f.setSize(600, 275);
             f.setVisible(true);
         }
}

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

public class FavMusic extends JFrame implements ActionListener
{
    //construct components
    JTextPane textPane = new JTextPane();

    //initialize data in arrays
    String artistName[] = {"Metallica", "Guns N Roses", "Dr Dre", "Soul Asylum"};
    String genre[] = {"Heavy Metal", "Heavy Metal", "Rap", "Rock"};
    String greatestHit[] = {"One", "Don't Cry", "Chronic", "Run Away Train"};
    String recordLabel[] = {"Def Jams", "Sony", "DeathRow","Artista"};

    //construct instance of FavMusic
    public FavMusic()
    {
        super("Favorite Music");
    }

    //create the menu system
    public JMenuBar createMenuBar()
    {
        //create an instance of the the menu
        JMenuBar mnuBar = new JMenuBar();
        setJMenuBar(mnuBar);

        //construct and populate the file menu
        JMenu mnuFile = new JMenu("File", true);
            mnuFile.setMnemonic(KeyEvent.VK_F);
            mnuFile.setDisplayedMnemonicIndex(0);
            mnuBar.add(mnuFile);

        JMenuItem mnuFileExit = new JMenuItem("Exit");
            mnuFileExit.setMnemonic(KeyEvent.VK_X);
            mnuFileExit.setDisplayedMnemonicIndex(1);
            mnuFile.add(mnuFileExit);
            mnuFileExit.setActionCommand("Exit");
            mnuFileExit.addActionListener(this);

        //construct and populate the Edit menu
        JMenu mnuEdit = new JMenu("Edit", true);
            mnuEdit.setMnemonic(KeyEvent.VK_E);
            mnuEdit.setDisplayedMnemonicIndex(0);
            mnuBar.add(mnuEdit);

        JMenuItem mnuEditInsert = new JMenuItem("Insert New Music");
            mnuEditInsert.setMnemonic(KeyEvent.VK_I);
            mnuEditInsert.setDisplayedMnemonicIndex(0);
            mnuEdit.add(mnuEditInsert);
            mnuEditInsert.setActionCommand("Insert");
            mnuEditInsert.addActionListener(this);

        JMenu mnuEditSort = new JMenu("Sort");
            mnuEditSort.setMnemonic(KeyEvent.VK_R);
            mnuEditSort.setDisplayedMnemonicIndex(3);
            mnuEdit.add(mnuEditSort);

        JMenuItem mnuEditSortByartistName = new JMenuItem("by Artist");
            mnuEditSortByartistName.setMnemonic(KeyEvent.VK_T);
            mnuEditSortByartistName.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByartistName);
            mnuEditSortByartistName.setActionCommand("artistName");
            mnuEditSortByartistName.addActionListener(this);

        JMenuItem mnuEditSortByGenre =  new JMenuItem("by Genre");
            mnuEditSortByGenre.setMnemonic(KeyEvent.VK_S);
            mnuEditSortByGenre.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByGenre);
            mnuEditSortByGenre.setActionCommand("genre");
            mnuEditSortByGenre.addActionListener(this);

        JMenuItem mnuEditSortBygreatestHit = new JMenuItem("by Greatest Hit");
            mnuEditSortBygreatestHit.setMnemonic(KeyEvent.VK_Y);
            mnuEditSortBygreatestHit.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortBygreatestHit);
            mnuEditSortBygreatestHit.setActionCommand("greatestHit");
            mnuEditSortBygreatestHit.addActionListener(this);

        JMenuItem mnuEditSortByrecordLabel = new JMenuItem("by Record Label");
            mnuEditSortByrecordLabel.setMnemonic(KeyEvent.VK_T);
            mnuEditSortByrecordLabel.setDisplayedMnemonicIndex(3);
            mnuEditSort.add(mnuEditSortByrecordLabel);
            mnuEditSortByrecordLabel.setActionCommand("recordLabel");
            mnuEditSortByrecordLabel.addActionListener(this);

        return mnuBar;
    }

    //create the content pane
    public Container createContentPane()
    {
            //create the JTextPane and center panel
            JPanel centerPanel = new JPanel();
                setTabsAndStyles(textPane);
                textPane = addTextToTextPane();
                JScrollPane scrollPane = new JScrollPane(textPane);
                    scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                    scrollPane.setPreferredSize(new Dimension(500, 200));
                    scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
                    scrollPane.setPreferredSize(new Dimension(500, 200));
                centerPanel.add(scrollPane);

            //create container and set attributes
            Container c = getContentPane();
                c.setLayout(new BorderLayout(1,5));
                //c.add(northPanel, BorderLayout.NORTH);
                c.add(centerPanel, BorderLayout.CENTER);

            return c;
        }

        //method to create tabe stops and set font style
       &n