?? counter.txt
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subtract.addActionListener(this);
vPanel5.add(subtract);
// add the plus button
JButton plus = new JButton('+');
plus.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
plus.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
plus.addActionListener(this);
vPanel5.add(plus);
/**
* line6
*/
Box vPanel6 = Box.createVerticalBox();
// add the MC button
mc = new JButton('MC');
mc.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mc.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mc.addActionListener(this);
vPanel6.add(mc);
// add the C button
JButton c = new JButton('C');
c.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
c.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
c.addActionListener(this);
vPanel6.add(c);
// add a vertical strut
Component verticalStrut =
Box.createVerticalStrut(BUTTON_HEIGHT);
vPanel6.add(verticalStrut);
// add the enter button
JButton enter = new JButton('=');
enter.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT * 2));
enter.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT * 2));
enter.addActionListener(this);
vPanel6.add(enter);
/**
* Buttons panel
*/
Box buttonsPanel = Box.createHorizontalBox();
buttonsPanel.add(vPanel1);
buttonsPanel.add(vPanel2);
buttonsPanel.add(vPanel3);
buttonsPanel.add(vPanel4);
buttonsPanel.add(vPanel5);
buttonsPanel.add(vPanel6);
/**********************************************************
* the initial state is normal calculator
***********************************************************/
vPanel1.setVisible(false);
mod.setVisible(false);
xey.setVisible(false);
ms.setVisible(false);
mr.setVisible(false);
mc.setVisible(false);
return buttonsPanel;
}
/**
* paint the registration window.
*
*/
public Box paintRegistration()
{
Box registration = Box.createVerticalBox();
/*
* title
*/
JLabel titleRegistration = new JLabel('Bingbing's Calculator Registration');
registration.add(titleRegistration);
/*
* information
*/
JPanel information = new JPanel();
information.setLayout(new GridLayout(6, 2));
//Name
JLabel name = new JLabel('Name:');
nameField = new JTextField();
information.add(name);
information.add(nameField);
//Street Address
JLabel streetAddress = new JLabel('Street Address:');
streetAddressField = new JTextField();
information.add(streetAddress);
information.add(streetAddressField);
//City
JLabel city = new JLabel('City:');
cityField = new JTextField();
information.add(city);
information.add(cityField);
//State
JLabel state = new JLabel('State:');
stateField = new JTextField();
information.add(state);
information.add(stateField);
//Zip
JLabel zip = new JLabel('Zip:');
zipField = new JTextField();
information.add(zip);
information.add(zipField);
//Country
JLabel country = new JLabel('Country:');
countryField = new JTextField();
information.add(country);
information.add(countryField);
registration.add(information);
/*
* Registration Code
*/
Box registrationCode = Box.createVerticalBox();
JPanel registrationCodePanel = new JPanel();
registrationCodePanel.setLayout(new FlowLayout());
//registrationCodePanel.setTitle('Registration Code');
registrationCodePanel.setBorder(new LineBorder(Color.red, 1));
registrationCode.add(registrationCodePanel);
first = new JTextField(3);
registrationCodePanel.add(first);
JLabel rail1 = new JLabel(' - ');
registrationCodePanel.add(rail1);
second = new JTextField(3);
registrationCodePanel.add(second);
JLabel rail2 = new JLabel(' - ');
registrationCodePanel.add(rail2);
third = new JTextField(3);
JLabel rail3 = new JLabel(' - ');
registrationCodePanel.add(third);
registrationCodePanel.add(rail3);
fourth = new JTextField(3);
registrationCodePanel.add(fourth);
/*
* buttons
*/
JPanel buttonsReg = new JPanel();
buttonsReg.setLayout(new FlowLayout());
jButtonR = new JButton('Register');
jButtonE = new JButton('Edit');
JButton jButtonRe = new JButton('Return');
jButtonR.addActionListener(this);
jButtonE.addActionListener(this);
jButtonRe.addActionListener(this);
buttonsReg.add(jButtonR);
buttonsReg.add(jButtonE);
buttonsReg.add(jButtonRe);
registrationCode.add(buttonsReg);
Box registrationAndPic = Box.createHorizontalBox();
registrationAndPic.add(registrationCode);
jButtonE.setVisible(false);
/*
* image
*/
JLabel imageLabel = new JLabel();
ImageIcon greatwall = new ImageIcon('greatwall.jpg');
imageLabel.setIcon(greatwall);
registrationAndPic.add(imageLabel);
registration.add(registrationAndPic);
return registration;
}
/**
* performe the action which sent by the window.
*
* @param e catch the action event of the window.
*/
public void actionPerformed(ActionEvent e)
{
String actionCommand = e.getActionCommand();
// exit the system
if(actionCommand.equals('Exit'))
System.exit(0);
// return to the calculator
else if(actionCommand.equals('Return'))
{
dealer.show(deckPanel, 'cal');
setTitle('Calculator');
validate();
pack();
}
// check the register information
else if(actionCommand.equals('Register'))
{
long check = 0;
Boolean valid = true;
if(nameField.getText().trim().length() != 0)
{
check = calChecksum(nameField.getText().trim());
if(check % 3 != Long.parseLong(first.getText().trim()))
valid = false;
else if(check% 5 != Long.parseLong(second.getText().trim()))
valid = false;
else if(check % 7 != Long.parseLong(third.getText().trim()))
valid = false;
else if(check % 11 != Long.parseLong(fourth.getText().trim()))
valid = false;
// if the information is valid, we will change the buttons
// and set the text field uneditable.
if(valid)
{
jButtonE.setVisible(true);
jButtonR.setVisible(false);
nameField.setEditable(false);
countryField.setEditable(false);
zipField.setEditable(false);
stateField.setEditable(false);
cityField.setEditable(false);
streetAddressField.setEditable(false);
first.setEditable(false);
second.setEditable(false);
third.setEditable(false);
fourth.setEditable(false);
validate();
}
}
}
// make the text field editable
else if(actionCommand.equals('Edit'))
{
jButtonE.setVisible(false);
jButtonR.setVisible(true);
nameField.setEditable(true);
countryField.setEditable(true);
zipField.setEditable(true);
stateField.setEditable(true);
cityField.setEditable(true);
streetAddressField.setEditable(true);
first.setEditable(true);
second.setEditable(true);
third.setEditable(true);
fourth.setEditable(true);
validate();
}
// turn to registration window
else if(actionCommand.equals('Registration Info'))
{
dealer.show(deckPanel, 'reg');
setTitle('Registration');
validate();
pack();
}
// turn to scientific model
else if(actionCommand.equals('Scientific Mode'))
{
dealer.show(deckPanel, 'cal');
vPanel1.setVisible(scientificMode.isSelected());
mod.setVisible(scientificMode.isSelected());
xey.setVisible(scientificMode.isSelected());
ms.setVisible(scientificMode.isSelected());
mr.setVisible(scientificMode.isSelected());
mc.setVisible(scientificMode.isSelected());
if(scientificMode.isSelected())
setTitle('Scientific Model');
else
setTitle('Normal Model');
validate();
pack();
}
// post the result
else if(actionCommand.equals('='))
{
// if the pre-operated command was '=', return the pre-step
if(!preOperatedCommand.equals('='))
tail = Double.parseDouble(result.getText().trim());
// if the two numbel are 0, we don't need calculate the result
if(tail!= 0.0 || head !=0.0)
{
// division
if(operatedCommand.equals('\u00F7'))
{
if(Math.abs(tail) > 0.0000000000000000001)
{
head = head/tail;
result.setText(Double.toString(head));
}
else
{
JOptionPane.showMessageDialog(this, 'Cannot divide by zero.');
head = 0.0;
tail = 0.0;
}
substitution = true;
}
// multiplacation
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