JAVA: syntax, commands, or what?
 

Hi Everbody!

I'm just learning JAVA. I'm using Windows 98/JDK 1.3.1_08/DOS4.0.

1. I'm thinking I need an "implements ActionListener and an ItemListener in my main(), for the menu items; but, "it" doesn't like it---and/or, it doesn't like the way I'm, maybe, not followin'-through?!
2. I need a Status Bar. Couldn't I just use, something like " public statusBar extends JPanel { " ??
3. I need to know how to "talk" to, I guess, another object/class...
for instance, I need to know what command to use to make the menu items do what they're s'pose to. I tried putting:
public void actionPerformed(ActionEvent evt) {
String command = evt.getActionCommand();
if (command.equals("Red")) {
setBackground(Color.red);
}
else if (command.equals("Green"))
setBackground(Color.green);
else if (command.equals("Blue"))
setBackground(Color.blue);
else if (command.equals("Cyan"))
setBackground(Color.cyan);
else if (command.equals("Magenta"))
setBackground(Color.magenta);
else if (command.equals("Yellow"))
setBackground(Color.yellow);
etc, after drawCard Graphics---"it" didn't like it!!
4. I need a Right-click menu---I tried:
JPopupMenu popup; I put it right before " Image cardImages; " in the main()
then, I put:
popup = new JPopupMenu();
popup.add("Sort By Suit").addActionListener(this);
popup.add("Numerical Sort").addActionListener(this);
popup.add("Restore Card Order").addActionListener(this);
in class CardsHandsFrameCanvas---but, I just happened to think of something---I didn't put, something like:
setJPopupMenu(create popupMenu);
in the Constructor-----could that've been it??
5. I need to Drag-and-drop; I put:
Image clickedImage = null;
Image draggedImage = null;
int prevDragX;
int prevDragY;
public void mousePressed(MouseEvent evt) {
if (draggedImage != null) {
return;
}
if (evt.isPopupTrigger()) {
popup.show(this,x70,y70);
}
else {
// Start dragging the shape.
draggedShape = clickedShape;
prevDragX = x;
prevDragY = y;
}
}
in the class CardsHandsFrameCanvas; and, also:

public void mouseDragged(MouseEvent evt) { etc.
public void mouseReleased(MouseEvent evt) { etc.
and:
addMouseListener(this);
addMouseMotionListener(this);
after setBackground(Color.white); in the Constructor.
I don't THINK I got any/many errors on this part---I know I didn't get any, for puttin' addMouseListener(this); after the setBackground... part.
6. Right now, the errors I'm getting, are:
CardsHandsFrame.java:26: ';' expected
public JMenuBar create menuBar() {
^
CardsHandsFrame.java:16: cannot resolve symbol
symbol : constructor CardsHandsFrame (java.awt.image)
location: class CardsHandsFrame
CardsHandsFrame game = new CardsHandsFrame(cards);
^
2 errors
I've tried everything I can think of, to correct these errors.

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

public class CardsHandsFrame extends JFrame {
Image cardImages; // ONE IMAGE CONTAINING ALL CARDS;
boolean runStandAlone;
public static void main(String[] args) {
Image cards = Toolkit.getDefaultToolkit().getImage("smallcards.gif");
CardsHandsFrame game = new CardsHandsFrame(cards);
game.runStandAlone = true;
}
public JMenuBar create menuBar() {
// BEGIN MENU BAR
menuBar = new JMenuBar();
// FIRST MENU - GAME
menu = new JMenu("Game");
menu.setMnemonic(KeyEvent.VK_G);
menu.getAccessibleContext().setAccessibleDescription(
"Displays Game Items");
menuBar.add(menu);
// FIRST ITEM - NEW MATCH
menuItem = new JMenuItem("New Match", KeyEvent.VK_M);
//menuItem.setMnemonic(KeyEvent.VK_M); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Begins New Match");
menuItem.addActionListener(this);
menu.add(menuItem);
// SECOND ITEM - NEW GAME
menuItem = new JMenuItem("New Game", KeyEvent.VK_G);
//menuItem.setMnemonic(KeyEvent.VK_M); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Begins New Game");
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - DISPLAY SAVED GAME
submenu = new JMenu("Display Saved Game");
submenu.setMnemonic(KeyEvent.VK_D);
menuItem = new JMenuItem("First Game");
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_2, ActionEvent.ALT_MASK));
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Second Game");
menuItem.addActionListener(this);
submenu.add(menuItem);
menu.add(submenu);
// FOURTH ITEM - HIGH SCORE BOARD
menu.addSeparator();
menuItem = new JMenuItem("High Scores", KeyEvent.VK_I);
//menuItem.setMnemonic(KeyEvent.VK_I); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"View HighScore Board");
menuItem.addActionListener(this);
menu.add(menuItem);
// FIFTH ITEM - SAVE GAME
menu.addSeparator();
menuItem = new JMenuItem("Save Game", KeyEvent.VK_S);
//menuItem.setMnemonic(KeyEvent.VK_S); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Saves Current Game/Match");
menuItem.addActionListener(this);
menu.add(menuItem);
// SIXTH ITEM - EXIT GAME
menuItem = new JMenuItem("Exit", KeyEvent.VK_X);
//menuItem.setMnemonic(KeyEvent.VK_X); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Exits Game");
menuItem.addActionListener(this);
menu.add(menuItem);
// SECOND MENU - OPTIONS
menu = new JMenu("Options");
menu.setMnemonic(KeyEvent.VK_O);
menu.getAccessibleContext().setAccessibleDescription(
"Displays Options Items");
menuBar.add(menu);
// FIRST ITEM - SORT BY SUIT
ImageIcon iconSuit = new ImageIcon("images/CARDS_Heart.gif");
menuItem = new JMenuItem("Sort By Suit", iconSuit);
menuItem.setMnemonic(KeyEvent.VK_S);
menuItem.addActionListener(this);
menu.add(menuItem);
// SECOND ITEM - NUMERICAL SORT
ImageIcon iconNum = new ImageIcon("images/CARDS_123.gif");
menuItem = new JMenuItem("Numerical Sort", iconNum);
menuItem.setMnemonic(KeyEvent.VK_N);
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - RESTORE CARD ORDER
ImageIcon iconRestore = new ImageIcon("images/RESTORE.gif");
menuItem = new JMenuItem("Restore Card Order", iconRestore);
menuItem.setMnemonic(KeyEvent.VK_R);
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD MENU - VIEW
menu = new JMenu("View");
menu.setMnemonic(KeyEvent.VK_V);
menu.getAccessibleContext().setAccessibleDescription(
"Displays View Items");
menuBar.add(menu);
// FIRST ITEM - BACKGROUND SUBMENU
submenu = new JMenu("Background Color");
submenu.setMnemonic(KeyEvent.VK_B);
menuItem = new JMenuItem("Red");
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_2, ActionEvent.ALT_MASK));
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Green");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Blue");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Cyan");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Magenta");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Yellow");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Black");
menuItem.addActionListener(this);
submenu.add(menuItem);
menuItem = new JMenuItem("Gray");
menuItem.addActionListener(this);
menuItem = new JMenuItem("White");
menuItem.addActionListener(this);
submenu.add(menuItem);
menu.add(submenu);
// SECOND ITEM - BACKGROUND SCENERY
menuItem = new JMenuItem("Background Scenery", KeyEvent.VK_S);
//menuItem.setMnemonic(KeyEvent.VK_S); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Displays Background Scenery Choices");
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - CARD BACKS
menuItem = new JMenuItem("Card Backs", KeyEvent.VK_C);
//menuItem.setMnemonic(KeyEvent.VK_C); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Shows Card-Back Image Choices");
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - CARD FACES
menuItem = new JMenuItem("Card Faces", KeyEvent.VK_F);
//menuItem.setMnemonic(KeyEvent.VK_F); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Shows Card-Face Image Choices");
menuItem.addActionListener(this);
menu.add(menuItem);
// FOURTH ITEM - SOUNDS
menuItem = new JMenuItem("Sounds", KeyEvent.VK_S);
//menuItem.setMnemonic(KeyEvent.VK_S); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Displays Sounds Choices");
menuItem.addActionListener(this);
menu.add(menuItem);
// FOURTH MENU - PREFERENCES
menu = new JMenu("Preferences");
menu.setMnemonic(KeyEvent.VK_P);
menu.getAccessibleContext().setAccessibleDescription(
"Displays Preference Items");
menuBar.add(menu);
// FIRST ITEM - PLAY OFF-LINE AGAINST THE //COMPUTER *DEFAULT*
menuItem = new JMenuItem("Play Off-Line, Against Computer", KeyEvent.VK_F);
//menuItem.setMnemonic(KeyEvent.VK_M); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Play Off-Line, against the Computer");
menuItem.addActionListener(this);
menu.add(menuItem);
// SECOND ITEM - PLAY ON-LINE, AGAINST ANOTHER PERSON
menuItem = new JMenuItem("Play On-Line, Against Another Person", KeyEvent.VK_N);
//menuItem.setMnemonic(KeyEvent.VK_N); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Play On-Line, against another person");
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - PLAY ON INTRANET, AGAINST ANOTHER PERSON
menuItem = new JMenuItem("Play On Intranet, Against Another Person", KeyEvent.VK_I);
//menuItem.setMnemonic(KeyEvent.VK_I); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Play On Intranet, against another person");
menuItem.addActionListener(this);
menu.add(menuItem);
// FOURTH MENU - HELP
menu = new JMenu("Help");
menu.setMnemonic(KeyEvent.VK_H);
menu.getAccessibleContext().setAccessibleDescription(
"Displays Help Items");
menuBar.add(menu);
// FIRST ITEM - RULES
menuItem = new JMenuItem("Rules", KeyEvent.VK_R);
//menuItem.setMnemonic(KeyEvent.VK_R); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Displays Game Rules");
menuItem.addActionListener(this);
menu.add(menuItem);
// SECOND ITEM - HELP TOPICS
menuItem = new JMenuItem("Help Topics", KeyEvent.VK_H);
//menuItem.setMnemonic(KeyEvent.VK_H); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Displays Help Index");
menuItem.addActionListener(this);
menu.add(menuItem);
// THIRD ITEM - ABOUT
menu.addSeparator();
menuItem = new JMenuItem("About", KeyEvent.VK_A);
//menuItem.setMnemonic(KeyEvent.VK_A); //used constructor instead
menuItem.setAccelerator(KeyStroke.getKeyStroke(
KeyEvent.VK_1, ActionEvent.ALT_MASK));
menuItem.getAccessibleContext().setAccessibleDescription(
"Displays Version/Copyright Info.");
menuItem.addActionListener(this);
menu.add(menuItem);
return menuBar;
}
public CardsHandsFrame(Image cards) { // THE CONSTRUCTOR
super("Card Game"); // WINDOW TITLE
cardImages = cards;
setJMenuBar(create menuBar);
setBackground(Color.white);
CardsHandsFrameCanvas board = new CardsHandsFrameCanvas();
getContentPane().add(board, BorderLayout.CENTER);
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
// THE FOLLOWING WILL CLOSE THE WINDOW
addWindowListener( new WindowAdapter() {
// GIVE USER CHANCE TO CHANGE HIS/HER MIND
public void windowClosing(WindowEvent evt) {
int response = JOptionPane.showConfirmDialog(null,
"Do you really want to quit?");
if (response == JOptionPane.YES_OPTION) {
dispose();
if (runStandAlone)
System.exit(0);
}
}
}
pack(); // Make the frame just large enough to hold
// the components that it contains.
setResizable(false);
setLocation(150,100);
show();
} // end constructor
class CardsHandsFrameCanvas extends JPanel
implements ActionListener {
Deck deck;
Hand hand;
String message;
boolean gameInProgress;
Font bigFont;
Font smallFont;
CardsHandsFrameCanvas() {
setPreferredSize(new Dimension(510,410));
setBackground( new Color(88,152,171) );
setForeground( Color.black );
smallFont = new Font("SansSerif", Font.PLAIN, 12);
bigFont = new Font("Serif", Font.BOLD, 14);
} // end constructor
public void actionPerformed(ActionEvent e) {
JMenuItem source = (JMenuItem)(e.getSource());
}
public void itemStateChanged(ItemEvent e) {
JMenuItem source = (JMenuItem)(e.getSource());
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
int cardCt = hand.getCardCount();
for (int i = 0; i < cardCt; i++)
drawCard(g, hand.getCard(i), 30 + i * 70, 15);
if (gameInProgress)
drawCard(g, null, 30 + cardCt * 70, 15);
} // end paintComponent()
void drawCard(Graphics g, Card card, int x, int y) {
if (card == null) {
// Draw a face-down card
g.setColor(Color.blue);
g.fillRect(x,y,71,96);
g.setColor(Color.white);
g.drawRect(x+5,y+5,71,96);
g.drawRect(x+35,y+5,71,96);
}
else {
int row = 0;
switch (card.getSuit()) {
case Card.HEARTS: row = 0; break;
case Card.CLUBS: row = 1; break;
case Card.DIAMONDS: row = 2; break;
case Card.SPADES: row = 3; break;
}
int sx, sy; // coords of upper left corner in the source image.
sx = 71*(card.getValue() - 1);
sy = 96*row;
g.drawImage(cardImages, x, y, x+71, y+96,
sx, sy, sx+71, sy+96, this);
}
}
} // end nested class CardsHandsFrameCanvas
} // end class CardsHandsFrame

I made a list of things I needed, then took them off the list, above, as I learned/implemented them; the remainder I posted, here. I thought that would be better than comin'-back SIX times!!Also, obviously, I took the program apart; posted the problem areas; and then, posted the shortest part of the program. With any of the items I've asked about, any help would be, GREATLY, appreciated!! I've taken a dozen (okay---maybe not a dozen) tutorials---I searched these forums---I have the API---java.sun.com drives me insane---I can't figure anything out...

A MILLION THANKS, in advance!!!

TheTree