public void EMpar(Database db, double prior) {
int j, np;
double x, y, tmp, tmpx, tmpy, tmpsx, tmpsy, tmpsxy;
np = db.nPoints();
tmpsx = tmpsy = tmpsxy = kmx = kmy = 0;
for (j = 0; j < np; j++) {
x = db.xVal(j);
y = db.yVal(j);
kmx += probs[j] * x;
kmy += probs[j] * y;
tmpsx += probs[j] * x * x;
tmpsy += probs[j] * y * y;
tmpsxy += probs[j] * x * y;
}
tmp = np * weight;
kmx /= tmp;
kmy /= tmp;
ksx = Math.sqrt(tmpsx / tmp - kmx * kmx);
ksy = Math.sqrt(tmpsy / tmp - kmy * kmy);
ksxy = tmpsxy / tmp - kmx * kmy;
if (ksx < mins) ksx = mins;
if (ksy < mins) ksy = mins;
weight = 0.9 * weight + 0.1 * prior;
}
// Fees update method
private void updateFeesData(long id) {
String columns[] = {"Course", "Fees Payed", "Total fees", "Installments"};
try {
Database db = new Database();
panel_7.removeAll();
feestablemodel = new MyTableModel(db.getFeeData(id), columns);
feestable = new JTable(feestablemodel);
feestable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
feestable.getSelectionModel().addListSelectionListener(this);
feesscrollpane = new JScrollPane(feestable);
panel_7.add(feesscrollpane);
// change fees payed label
feespayedlabel.setText("Fees Payed");
feesduelabel.setText("Fees Due");
totalfeeslabel.setText("Total Fees");
panel_7.revalidate();
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), null, JOptionPane.ERROR_MESSAGE);
}
}
/**
* opens the chosen file, reads in the file, and prints out a receipt
*
* @param chosenFile
*/
private void readSource(File chosenFile) {
String chosenFileName = chosenFile.getName();
TextFileInput inFile = new TextFileInput(chosenFileName);
Container myContentPane = jframe.getContentPane();
// chosenFile TextArea myTextArea = new TextArea();
myContentPane.add(myTextArea);
int count = 0;
float priceTotal = 0.0f;
Database db = new Database("database2.txt");
String[] transaction = new String[100];
String line = inFile.readLine();
DecimalFormat df = new DecimalFormat("#00.00");
while (line != null) {
StringTokenizer tokenized = new StringTokenizer(line, ",");
String code = tokenized.nextToken();
float weight = Float.parseFloat(tokenized.nextToken());
String name;
float price;
try {
name = db.getName(code);
} catch (ItemNotFoundException e) {
name = JOptionPane.showInputDialog(null, "Item " + code + " not found. Enter Name: ");
}
try {
price = db.getPrice(code);
} catch (ItemNotFoundException e) {
price =
Float.valueOf(
JOptionPane.showInputDialog(
null, "Price for " + name + " not found. Enter price: "));
}
float itemTotal = weight * price;
priceTotal += itemTotal;
transaction[count] =
name + "\t" + price + "\t" + df.format(weight) + "\t $" + df.format(itemTotal);
count++;
line = inFile.readLine();
} // while
myTextArea.setText("ITEM: \t PRICE\\LB: \t POUNDS: \t TOTAL:");
myTextArea.append("\n");
for (int i = 0; i < count; i++) {
myTextArea.append(transaction[i]);
myTextArea.append("\n");
}
myTextArea.append("\t\t TOTAL: $" + df.format(priceTotal));
jframe.setVisible(true);
} // openFile
// Add fee method
private void addFees() {
try {
float feesadded = Float.parseFloat(addfeestextfield.getText());
int id = table.getSelectionModel().getMinSelectionIndex();
long studentid = (long) table.getValueAt(id, 0);
int index = feestable.getSelectionModel().getMinSelectionIndex();
String coursename = (String) feestable.getValueAt(index, 0);
Database db = new Database();
db.addFees(feesadded, studentid, coursename);
updateFeesData(studentid);
addfeestextfield.setText("");
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), null, JOptionPane.ERROR_MESSAGE);
}
}
// Add course method
public void addCourse() {
try {
Database db = new Database();
String coursename = (String) coursecombobox.getSelectedItem();
if (coursecombobox.getSelectedIndex() == 0) {
throw new Exception("No course selected");
}
float fees = db.getCoursefees(coursename);
float totalfees = fees + (ims.main.Settings.getInstallment() * (int) spinner.getValue());
long id = (long) table.getValueAt((int) table.getSelectionModel().getMinSelectionIndex(), 0);
db.addCourseToCurrentStudent(id, totalfees, (int) spinner.getValue(), coursename);
updateFeesData(id);
courseReset();
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), null, JOptionPane.ERROR_MESSAGE);
}
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == selectOutfit) {
setContentPane(frontEndPane);
startFrontEndPane = null; // not used after button is pressed
buttonHolder.add(replaceOutfit);
topPanel.add(db.getItem("Trousers"));
topPanel.add(db.getItem("T-Shirts"));
topPanel.add(db.getItem("Jackets"));
topPanel.add(db.getItem("Shoes"));
topPanel.add(db.getItem("Sweaters"));
showTotalPrice(true); // displays the price of selected items on right
showTotalPrice(false); // displays total price of all items on left
}
// Suggest all 5 clothes categories again
// if replace button is pressed
if (e.getSource() == replaceOutfit) {
// if clothesItem topPanel is NOT checked
if (!((ClothesItem) topPanel.getComponent(0))
.isChecked()) { // remove 0 element, 1 element, and so on..
topPanel.remove(0);
// topPanel gets the next trousers from the database
topPanel.add(db.getItem("Trousers"), 0);
}
if (!((ClothesItem) topPanel.getComponent(1)).isChecked()) {
topPanel.remove(1);
topPanel.add(db.getItem("T-Shirts"), 1);
}
if (!((ClothesItem) topPanel.getComponent(2)).isChecked()) {
topPanel.remove(2);
topPanel.add(db.getItem("Jackets"), 2);
}
if (!((ClothesItem) topPanel.getComponent(3)).isChecked()) {
topPanel.remove(3);
topPanel.add(db.getItem("Shoes"), 3);
}
if (!((ClothesItem) topPanel.getComponent(4)).isChecked()) {
topPanel.remove(4);
topPanel.add(db.getItem("Sweaters"), 4);
}
showTotalPrice(true);
showTotalPrice(false);
}
if (e.getSource() == help) {
totalPrice.setText(
"Pressed Help, press \"Replace\" to switch clothes already shown and unchecked");
}
if (e.getSource() == exit) {
totalPrice.setText("Exiting...");
this.dispose();
}
if (e.getSource() == total) {
showTotalPrice(false);
}
}
public void setContent(String cat) {
cat = cat.trim();
selectAllCB.setVisible(false);
selectAllCB.setSelected(false);
deleteBut.setVisible(false);
restoreBut.setVisible(false);
refreshBut.setVisible(true);
Object columns[] = null;
int count = 0;
switch (cat) {
case "Inbox":
columns = new Object[] {"", "From", "Date", "Subject", "Content"};
count = Database.getCount("Inbox");
workingSet = db.getData("SELECT * FROM messages WHERE tag='inbox' ORDER BY msg_id desc");
;
break;
case "SentMail":
columns = new Object[] {"", "To", "Date", "Subject", "Content"};
count = Database.getCount("Sentmail");
workingSet = db.getData("SELECT * FROM messages WHERE tag='sentmail' ORDER BY msg_id desc");
break;
case "Draft":
columns = new Object[] {"", "To", "Date", "Subject", "Content"};
count = Database.getCount("Draft");
workingSet = db.getData("SELECT * FROM messages WHERE tag='draft' ORDER BY msg_id desc");
break;
case "Outbox":
columns = new Object[] {"", "To", "Date", "Subject", "Content"};
count = Database.getCount("Outbox");
workingSet = db.getData("SELECT * FROM messages WHERE tag='outbox' ORDER BY msg_id desc");
break;
case "Trash":
// restoreBut.setVisible(true);
columns = new Object[] {"", "To/From", "Date", "Subject", "Content"};
count = Database.getCount("Trash");
workingSet =
db.getData(
"SELECT * FROM messages,trash WHERE messages.tag='trash' and messages.msg_id=trash.msg_id ORDER BY deleted_at desc");
break;
default:
System.out.println("in default case");
}
if (count > 0) {
selectAllCB.setVisible(true);
rows = new Object[count][];
msgID = new int[count];
try {
workingSet.beforeFirst();
for (int i = 0; i < count && workingSet.next(); i++) {
msgID[i] = workingSet.getInt(1);
rows[i] =
new Object[] {
false,
workingSet.getString(2),
workingSet.getDate(3),
workingSet.getString(4),
workingSet.getString(5)
};
}
} catch (SQLException sqlExc) {
JOptionPane.showMessageDialog(null, sqlExc, "EXCEPTION", JOptionPane.ERROR_MESSAGE);
sqlExc.printStackTrace();
}
tableModel = new MyDefaultTableModel(rows, columns);
table = new JTable(tableModel);
table.getSelectionModel().addListSelectionListener(this);
table.addMouseListener(this);
table.getTableHeader().setOpaque(true);
table.getTableHeader().setReorderingAllowed(false);
// table.getTableHeader().setBackground(Color.blue);
table.getTableHeader().setForeground(Color.blue);
// table.setRowSelectionAllowed(false);
// table.setColumnSelectionAllowed(false);
table.setFont(new Font(Font.SANS_SERIF, Font.PLAIN, 14));
table.setRowHeight(20);
table.setFillsViewportHeight(true);
TableColumn column = null;
for (int i = 0; i < 5; i++) {
column = table.getColumnModel().getColumn(i);
if (i == 0) {
column.setPreferredWidth(6);
} else if (i == 3) {
column.setPreferredWidth(250);
} else if (i == 4) {
column.setPreferredWidth(450);
} else {
column.setPreferredWidth(40);
}
}
table.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);
remove(contentPan);
contentPan = new JScrollPane(table);
contentPan.setBackground(Color.orange);
contentPan.setOpaque(true);
contentPan.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
add(contentPan, "Center");
Home.home.homeFrame.setVisible(true);
} else {
JPanel centPan = new JPanel(new GridBagLayout());
centPan.setBackground(new Color(52, 86, 70));
JLabel label = new JLabel("No Messages In This Category");
label.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 22));
label.setForeground(Color.orange);
centPan.add(label);
remove(contentPan);
contentPan = new JScrollPane(centPan);
contentPan.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
add(contentPan, "Center");
contentPan.repaint();
}
}
@Override
public void actionPerformed(ActionEvent axnEve) {
Object obj = axnEve.getSource();
if (obj == selectAllCB) {
Boolean state;
if (selectAllCB.isSelected()) {
state = true;
deleteBut.setVisible(true);
if (Home.titlePan.getTitle().equals("Trash")) {
restoreBut.setVisible(true);
}
} else {
state = false;
deleteBut.setVisible(false);
if (Home.titlePan.getTitle().equals("Trash")) {
restoreBut.setVisible(false);
}
}
for (int i = 0; i < table.getRowCount(); i++) {
table.setValueAt(state, i, 0);
}
} else if (obj == refreshBut || obj == backBut) {
setContent(Home.titlePan.getTitle());
backBut.setVisible(false);
} else if (obj == deleteBut) {
ArrayList selectedMessages = getSelectedMessages();
if (selectedMessages.isEmpty()) {
FootPan.setMessage(FootPan.NO_SELECTION_MESSAGE);
} else {
int option =
JOptionPane.showConfirmDialog(
Home.home.homeFrame,
"Are You Sure?",
"DELETE",
JOptionPane.YES_NO_OPTION,
JOptionPane.WARNING_MESSAGE);
if (option == 0) {
Database.deleteMessages(selectedMessages, Home.titlePan.getTitle());
setContent(Home.titlePan.getTitle());
}
}
} else if (obj == restoreBut) {
ArrayList selectedMessages = getSelectedMessages();
if (selectedMessages.isEmpty()) {
FootPan.setMessage(FootPan.NO_SELECTION_MESSAGE);
} else {
int option =
JOptionPane.showConfirmDialog(
Home.home.homeFrame,
"Are You Sure?",
"RESTORE",
JOptionPane.YES_NO_OPTION,
JOptionPane.WARNING_MESSAGE);
if (option == 0) {
Database.restoreMessages(selectedMessages);
setContent(Home.titlePan.getTitle());
}
}
}
}
public void update_table() {
Database.showDB("transaction", transaction_column, info_data, info_table);
}
public void update_table() {
Database.showDB("member", member_column, info_data, info_table);
}
@SuppressWarnings({"unchecked", "rawtypes"})
private void initializeComponent() {
// Initialize panels
panel_1 = new JPanel();
panel_2 = new JPanel();
panel_3 = new JPanel();
panel_4 = new JPanel();
panel_5 = new JPanel();
panel_6 = new JPanel();
panel_7 = new JPanel();
// Initialize spinner
spinnermodel = new SpinnerNumberModel(0, 0, 10, 1);
spinner = new JSpinner(spinnermodel);
// Initialize combo box
searchcombobox = new JComboBox();
searchcombobox.addItem("All");
searchcombobox.addItem("By Name");
searchcombobox.addItem("By Guardian Name");
searchcombobox.addItem("By Course");
searchcombobox.addItem("Due Fees");
searchcombobox.setSelectedIndex(0);
coursecombobox = new JComboBox();
coursecombobox.addItem("Select Course");
Database db = new Database();
String courses[] = db.getCourses();
if (courses != null) {
for (String x : courses) {
coursecombobox.addItem(x);
}
}
// Initialize text field
searchtextfield = new JTextField(10);
addfeestextfield = new JTextField(8);
// Initialize button
searchbutton = new JButton("Search");
addfeesbutton = new JButton("Add fees");
addcoursebutton = new JButton("Add Course");
// Initialize check box
allfieldcheckbox = new JCheckBox("Show all fields");
allfieldcheckbox.setSelected(true);
// Initialize label
totalstudentlabel = new JLabel("Total Student");
feespayedlabel = new JLabel("Fees Payed");
feesduelabel = new JLabel("Fees due");
totalfeeslabel = new JLabel("Total fees");
// Add Item listener to check box
allfieldcheckbox.addItemListener(this);
// Add Action Listener to button
searchbutton.addActionListener(this);
addfeesbutton.addActionListener(this);
addcoursebutton.addActionListener(this);
// Add Key Listener to button
searchbutton.addKeyListener(this);
addfeesbutton.addKeyListener(this);
addcoursebutton.addKeyListener(this);
}
// Method to update Table and related components
private void update() {
Database db = new Database();
String column[] = {
"ID",
"NAME",
"GENDER",
"GUARDIAN_ROLE",
"GUARDIAN_NAME",
"PRESENT_ADDRESS",
"PRESENT_CITY",
"PRESENT_PHONE"
};
try {
// Update table
if (searchcombobox.getSelectedIndex() == 0 && allfieldcheckbox.isSelected()) {
mytablemodel = new MyTableModel(db.getAllStudent(), db.getColumnNameFromStudent());
} else if (searchcombobox.getSelectedIndex() == 0 && !allfieldcheckbox.isSelected()) {
mytablemodel = new MyTableModel(db.getSomeFieldsFromStudent(), column);
} else if (searchcombobox.getSelectedIndex() == 1 && allfieldcheckbox.isSelected()) {
String query =
"SELECT * FROM Student WHERE NAME = \'" + searchtextfield.getText().trim() + "\'";
mytablemodel = new MyTableModel(db.getData(query), db.getColumnNameFromStudent());
} else if (searchcombobox.getSelectedIndex() == 1 && !allfieldcheckbox.isSelected()) {
String query =
"SELECT ID, NAME, GENDER, GUARDIAN_ROLE, GUARDIAN_NAME, PRESENT_ADDRESS, PRESENT_CITY, PRESENT_PHONE FROM Student WHERE NAME = \'"
+ searchtextfield.getText().trim()
+ "\'";
mytablemodel = new MyTableModel(db.getData(query), column);
} else if (searchcombobox.getSelectedIndex() == 2 && allfieldcheckbox.isSelected()) {
String query =
"SELECT * FROM Student WHERE GUARDIAN_NAME = \'"
+ searchtextfield.getText().trim()
+ "\'";
mytablemodel = new MyTableModel(db.getData(query), db.getColumnNameFromStudent());
} else if (searchcombobox.getSelectedIndex() == 2 && !allfieldcheckbox.isSelected()) {
String query =
"SELECT ID, NAME, GENDER, GUARDIAN_ROLE, GUARDIAN_NAME, PRESENT_ADDRESS, PRESENT_CITY, PRESENT_PHONE FROM Student WHERE GUARDIAN_NAME = \'"
+ searchtextfield.getText().trim()
+ "\'";
mytablemodel = new MyTableModel(db.getData(query), column);
} else if (searchcombobox.getSelectedIndex() == 3 && allfieldcheckbox.isSelected()) {
String query =
"SELECT * FROM Student WHERE ID = ANY(SELECT SID FROM Fee WHERE CID = ANY(SELECT ID FROM CourseInfo WHERE NAME = \'"
+ searchtextfield.getText().trim()
+ "\'))";
mytablemodel = new MyTableModel(db.getData(query), db.getColumnNameFromStudent());
} else if (searchcombobox.getSelectedIndex() == 3 && !allfieldcheckbox.isSelected()) {
String query =
"SELECT ID, NAME, GENDER, GUARDIAN_ROLE, GUARDIAN_NAME, PRESENT_ADDRESS, PRESENT_CITY, PRESENT_PHONE FROM Student WHERE ID = ANY(SELECT SID FROM Fee WHERE CID = ANY(SELECT ID FROM CourseInfo WHERE NAME = \'"
+ searchtextfield.getText().trim()
+ "\'))";
mytablemodel = new MyTableModel(db.getData(query), column);
} else if (searchcombobox.getSelectedIndex() == 4 && allfieldcheckbox.isSelected()) {
String query =
"SELECT * FROM Student WHERE ID = ANY(SELECT SID FROM Fee WHERE TOTAL_FEES - FEES_PAYED >= 0)";
mytablemodel = new MyTableModel(db.getData(query), db.getColumnNameFromStudent());
} else {
String query =
"SELECT ID, NAME, GENDER, GUARDIAN_ROLE, GUARDIAN_NAME, PRESENT_ADDRESS, PRESENT_CITY, PRESENT_PHONE FROM Student WHERE ID = ANY(SELECT SID FROM Fee WHERE TOTAL_FEES - FEES_PAYED >= 0)";
mytablemodel = new MyTableModel(db.getData(query), column);
}
table = new JTable(mytablemodel);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
// Add list selection listener to table
table.getSelectionModel().addListSelectionListener(this);
TableColumn col = null;
for (int i = 3; i < table.getColumnCount(); i++) {
col = table.getColumnModel().getColumn(i);
col.setPreferredWidth(200);
}
scrollpane = new JScrollPane(table);
panel_3.removeAll();
panel_3.add(scrollpane);
// Update total student label
int total = db.getTotalStudent();
totalstudentlabel.setText("Total Student = " + total);
// Clear search combo box
searchtextfield.setText("");
this.revalidate();
} catch (Exception e) {
JOptionPane.showMessageDialog(this, e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
}
}