?? counter.txt
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import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
public class Calculator extends JFrame implements ActionListener
{
public static final int WIDTH = 800; // width of the window
public static final int HEIGHT = 600; // height of the window
public static final int BUTTON_WIDTH = 80; // width of the buttons
public static final int BUTTON_HEIGHT = 60; // height of the buttons
private CardLayout dealer; // card layout
private JPanel deckPanel; // used to card layout
private JTextField result; // the calculate result
private JCheckBoxMenuItem scientificMode; // the menu item of the mode
private Box vPanel1; // the first line buttons of the
// scientific mode.
private JButton mod; // the modular button
private JButton xey; // the button of Yth root of X
private JButton ms; // save button
private JButton mr; // release the stored value
private JButton mc; // clear the stored value
private double head = 0.0; // the first number of the equation
private double tail = 0.0; // the second number of the equation
private boolean substitution = true; // whether substituted the answer or not
private String operatedCommand = 'NOTHING'; // the current operated command
private String preOperatedCommand = 'NOTHING'; // remember the pre-operated command
private double variableMemory = 0.0; // the variable of the memory
private JButton jButtonR; // the register's button
private JButton jButtonE; // the edit's button
private JTextField nameField; // the field of the name
private JTextField countryField; // the field of the country
private JTextField zipField; // the field of the zip
private JTextField stateField; // the field of the state
private JTextField cityField ; // the field of the city
private JTextField streetAddressField; // the field of the address
private JTextField first; // the first part of the key
private JTextField second; // the second part of the key
private JTextField third; // the third part of the key
private JTextField fourth; // the fourth part of the key
public Calculator()
{
setSize(WIDTH, HEIGHT);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle('Normal Calculator');
Container contentPre = getContentPane(); // the container of the window
dealer = new CardLayout(); // create a new card layout
deckPanel = new JPanel();
deckPanel.setLayout(dealer);
Box content = Box.createVerticalBox(); // create a new vertical Box
Box registration = Box.createVerticalBox();
/****************************************************
* menu
* file
*****************************************************/
JMenu fileMenu = new JMenu('File');
JMenuItem exitItemOfFile = new JMenuItem('Exit');
exitItemOfFile.addActionListener(this);
fileMenu.add(exitItemOfFile);
/**
* menu
*/
JMenu settingsMenu = new JMenu('Settings');
JMenuItem registrationInfo = new JMenuItem('Registration Info');
registrationInfo.addActionListener(this);
settingsMenu.add(registrationInfo);
scientificMode = new JCheckBoxMenuItem('Scientific Mode');
scientificMode.addActionListener(this);
settingsMenu.add(scientificMode);
JMenuBar jMenuBar = new JMenuBar();
jMenuBar.add(fileMenu);
jMenuBar.add(settingsMenu);
setJMenuBar(jMenuBar);
/****************************************************
* textFiled panel
*****************************************************/
result = new JTextField('0'); // the initiated value of the answer
result.setBackground(Color.CYAN); // set the back ground color with cyan
result.setHorizontalAlignment(JTextField.RIGHT); // set the horizontal alignment
content.add(result);
content.add(paintButtons());
deckPanel.add('cal', content); // add the calculators card to the layout
registration.add(paintRegistration()); // add the register window
deckPanel.add('reg', registration); // add the register window to the layout
contentPre.add(deckPanel); // add the cards to the container
}
/**
* paint the buttons of the two models.
*
*/
public Box paintButtons()
{
/****************************************************
* Buttons
*****************************************************/
/**
*/
vPanel1 = Box.createVerticalBox();
// add the backwards's button
JButton backwards = new JButton('1/X');
backwards.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
backwards.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
backwards.addActionListener(this);
vPanel1.add(backwards);
// add the factorial button
JButton factorial = new JButton('X!');
factorial.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
factorial.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
factorial.addActionListener(this);
vPanel1.add(factorial);
// add the square's button
JButton square = new JButton('<html>X<sup>2</sup></html>');
square.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
square.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
square.addActionListener(this);
square.setActionCommand('sqr');
vPanel1.add(square);
// add the square root's button
JButton squareRoot = new JButton('\u221a');
squareRoot.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
squareRoot.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
squareRoot.addActionListener(this);
vPanel1.add(squareRoot);
// add the power's button
JButton power = new JButton('<html>X<sup>Y</sup></html>');
power.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
power.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
power.addActionListener(this);
power.setActionCommand('pow');
vPanel1.add(power);
/**
* line2
*/
Box vPanel2 = Box.createVerticalBox();
// add the modular button
mod = new JButton('Mod');
mod.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mod.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mod.addActionListener(this);
vPanel2.add(mod);
// add the seven button
JButton seven = new JButton('7');
seven.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
seven.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
seven.addActionListener(this);
vPanel2.add(seven);
// add the four button
JButton four = new JButton('4');
four.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
four.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
four.addActionListener(this);
vPanel2.add(four);
// add the one button
JButton one = new JButton('1');
one.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
one.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
one.addActionListener(this);
vPanel2.add(one);
// add the zero button
JButton zero = new JButton('0');
zero.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
zero.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
zero.addActionListener(this);
vPanel2.add(zero);
/**
* line3
*/
Box vPanel3 = Box.createVerticalBox();
// add the Yth root of X button
xey = new JButton('XeY');
xey.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
xey.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
xey.addActionListener(this);
vPanel3.add(xey);
// add the eight button
JButton eight = new JButton('8');
eight.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
eight.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
eight.addActionListener(this);
vPanel3.add(eight);
// add the five button
JButton five = new JButton('5');
five.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
five.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
five.addActionListener(this);
vPanel3.add(five);
// add the two button
JButton two = new JButton('2');
two.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
two.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
two.addActionListener(this);
vPanel3.add(two);
// add the dot button
JButton dot = new JButton('.');
dot.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
dot.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
dot.addActionListener(this);
vPanel3.add(dot);
/**
* line4
*/
Box vPanel4 = Box.createVerticalBox();
// add the MS button
ms = new JButton('MS');
ms.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
ms.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
ms.addActionListener(this);
vPanel4.add(ms);
// add the nine button
JButton nine = new JButton('9');
nine.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
nine.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
nine.addActionListener(this);
vPanel4.add(nine);
// add the six button
JButton six = new JButton('6');
six.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
six.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
six.addActionListener(this);
vPanel4.add(six);
// add the three button
JButton three = new JButton('3');
three.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
three.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
three.addActionListener(this);
vPanel4.add(three);
// add the plusMinus button
JButton plusMinus = new JButton('\u00b1');
plusMinus.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
plusMinus.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
plusMinus.addActionListener(this);
vPanel4.add(plusMinus);
/**
* line5
*/
Box vPanel5 = Box.createVerticalBox();
// add the MR button
mr = new JButton('MR');
mr.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mr.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
mr.addActionListener(this);
vPanel5.add(mr);
// add the division button
JButton division = new JButton('\u00F7');
division.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
division.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
division.addActionListener(this);
vPanel5.add(division);
// add the multiplication button
JButton multiplication = new JButton('\u00d7');
multiplication.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
multiplication.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
multiplication.addActionListener(this);
vPanel5.add(multiplication);
// add the subtract button
JButton subtract = new JButton('-');
subtract.setMaximumSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
subtract.setPreferredSize(new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT));
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