Dear all,
My names its Max, and seems that I have some problems with JAVA coding. What I need to create its a GUI interface, from the code below. But I am having bad time because I am trying hard but I get always errors! It really frustrating, I do not if you can help. . I attached the class files to this e-mail, and if you click the link below, you will discover what I need to create. Bye.
Anyway take care.
class Application
{ public static void main(String argv[])
{ Application dummy = new Application();
}
//Instance variables
private GUI gui;
private Model model;
// Constructor
public Application()
{ gui = new GUI(this);
model = new Model(this);
}
//Interface methods
public void newList()
{ model.newList();
}
public void openList(File file)
{ model.openList(file);
}
public void addText(File file)
{ model.addText(file);
}
public void alphaSort()
{ model.alphaSort();
}
public void freqSort()
{ model.freqSort();
}
public void saveList(File file)
{ model.saveList(file);
}
public void displayList(String list, int words)
{ gui.displayList(list, words);
}
}//GUI code for MyWords - Help not implemented
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
class GUI
{
//Instance variables
private Application application;
private MyWordHelp helpWindow;
//GUI components
private JButton helpButton = new JButton("Help");
private JButton newListButton = new JButton("New List");
private JButton openListButton = new JButton("OpenList");
private JButton addTextFileButton = new JButton("Add Text File");
private JButton alphaSortButton = new JButton("Sort Alphabetic");
private JButton freqSortButton = new JButton("Sort Frequency");
private JButton saveListButton = new JButton("Save List");
private JLabel wordCountLabel = new JLabel("Word count: 0");
private JTextArea wordList = new JTextArea("Freq\tWord\n\n");
// Boxes Panels and Panes
private Box mainBox = new Box(BoxLayout.X_AXIS);
private Box controlBox = new Box(BoxLayout.Y_AXIS);
private JScrollPane scrollingWordList; // to make wordList scroll
// Window
private JFrame frame = new JFrame("My Words");
private Container window = frame.getContentPane();
// Constructor
public GUI(Application app)
{ application = app;
//helpWindow = new MyWordHelp();
controlBox.add(new JLabel(" "));
controlBox.add(helpButton);
controlBox.add(new JLabel(" "));
controlBox.add(newListButton);
controlBox.add(openListButton);
controlBox.add(new JLabel(" "));
controlBox.add(addTextFileButton);
controlBox.add(new JLabel(" "));
controlBox.add(wordCountLabel);
controlBox.add(new JLabel(" "));
controlBox.add(alphaSortButton);
controlBox.add(freqSortButton);
controlBox.add(new JLabel(" "));
controlBox.add(saveListButton);
controlBox.add(new JLabel(" "));
scrollingWordList = new JScrollPane(wordList);
scrollingWordList.setVerticalScrollBarPolicy(
ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
mainBox.add(controlBox);
mainBox.add(scrollingWordList);
window.add(mainBox);
frame.addWindowListener(new WindowClose());
helpButton.addActionListener(new HelpButtonListener());
newListButton.addActionListener(new NewListButtonListener());
openListButton.addActionListener(new OpenListButtonListener());
addTextFileButton.addActionListener(new AddTextFileButtonListener());
alphaSortButton.addActionListener(new AlphaSortButtonListener());
freqSortButton.addActionListener(new FreqSortButtonListener());
saveListButton.addActionListener(new SaveListButtonListener());
alphaSortButton.setEnabled(false);
freqSortButton.setEnabled(false);
saveListButton.setEnabled(false);
frame.setLocation(100, 100);
frame.pack();
frame.setResizable(false);
frame.setVisible(true);
}
// Methods
public void displayList(String list, int words)
{ wordList.setText("Freq\tWord\n\n"+list);
wordCountLabel.setText("Word count: " + words);
if (words > 0)
{ alphaSortButton.setEnabled(true);
freqSortButton.setEnabled(true);
saveListButton.setEnabled(true);
}
else
{ alphaSortButton.setEnabled(false);
freqSortButton.setEnabled(false);
saveListButton.setEnabled(false);
}
}
// Listeners
class WindowClose extends WindowAdapter
{ public void windowClosing(WindowEvent e)
{ System.exit(0);
}
}
class HelpButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ //helpWindow.frame.setVisible(true);
}
}
class NewListButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ application.newList();
}
}
class OpenListButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ JFileChooser chooseTextFile = new JFileChooser(".");
int returnVal = chooseTextFile.showOpenDialog(window);
if(returnVal == JFileChooser.APPROVE_OPTION)
application.openList(chooseTextFile.getSelectedFile());
else;
}
}
class AddTextFileButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ JFileChooser chooseTextFile = new JFileChooser(".");
int returnVal = chooseTextFile.showOpenDialog(window);
if(returnVal == JFileChooser.APPROVE_OPTION)
application.addText(chooseTextFile.getSelectedFile());
else;
}
}
class AlphaSortButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ application.alphaSort();
}
}
class FreqSortButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ application.freqSort();
}
}
class SaveListButtonListener implements ActionListener
{ public void actionPerformed(ActionEvent evt)
{ JFileChooser chooseTextFile = new JFileChooser(".");
//chooseTextFile.setFileFilter(new TextFileFilter());
int returnVal = chooseTextFile.showSaveDialog(window);
if(returnVal == JFileChooser.APPROVE_OPTION)
application.saveList(chooseTextFile.getSelectedFile());
else;
}
}
}import java.io.*;
import java.util.*;
public class Model
{ private Application application; //reference to interface
//Constructor
public Model(Application a)
{ application = a; //save the reference to interface
}
//Methods
public void newList(String fileName, String letter) ;
{
}
public void openList (String filename, String letter);
{
}
public void addText ( String letter);
{
}
public void alphaSet ();
{
}
public void freqSort ();
{
}
public saveList ( String fileName);
{
}
public void displayList(String s){
list.setText(s);
}
public class ChooseLetterListener implements
ActionListener
{ public void actionPerformed(ActionEvent evt)
{ String letter=
(String) chooseLetterCombo.getSelectedItem();
application.makeList(fileName,letter);
} }
public class ChooseFileListener implemets
ActionListener
{ public void actionPerformed(ActionEvent evt)
{ JFileChooser chooser = new JFileChooser();
chooser.setFileFilter(new TextFileFilter());
int return Val= chooser.showOpenDialog(window);
if(return Val==JFileChooser.APPROVE_OPTION)
{ File selectedFile= chooser.getSelectedFile();
fileName= selectedFile.getName();
list.setText(fileName);
}
}
}
}import java.io.*;
import javax.swing.*;
public class TextFileFilter extends javax.swing.filechooser.FileFilter
{ public String getDescription()
{ return "Text and Java files";
}
public boolean accept(File file)
{ String fileName = file.getName();
String extension = "";
if (file.isDirectory())
return true;
else if(fileName.indexOf('.') < 0 )
return false; // file name has no extension
else
{ extension = fileName.substring(fileName.indexOf('.')).toUpperCase();
if( extension.equals(".TXT") || extension.equals(".JAVA"))
return true;
else
return false;
}
}
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