Martin vanPutten

When I install a new java update... can I uninstall the previous one. I have a bunch sitting there with about 120MB each in my add remove programs... if I have the newest update would that be all I would need?

Choice gives you a drop down menu.

As you can probably see... i'm having a problem with Choice. I have an arraylist already set up basically of items in a specific room and different items in another item. How can I put that into a choice.add(itemArrayList);? I thought I had my code right but apparently it couldn't be read. Does anybody know of a tutorial I can refer to for adding ArrayLists to a Choice?

There we go... I figured it out!

I've played with the JScrollBar and Pane for a day now... and I must be missing something... what should it look like?

How do I make a scrollbar in my textarea?
import java.awt.*; import javax.swing.*; import java.awt.event.*; /** * Class ViewPanel - Manages the panels in the frame. * * @author Martin vanPutten * @version 2007.04.05 */ public class ViewPanel extends JPanel { private Game game = new Game(); public ViewPanel(Container pane) { pane.setLayout(null); JLabel titleLabel = new JLabel("ZUUL"); titleLabel.setFont(new Font("Comic Sans", Font.BOLD, 70)); JLabel authorLabel = new JLabel("By: Martin vanPutten"); authorLabel.setFont(new Font("Comic Sans", Font.PLAIN, 24)); JLabel goLabel = new JLabel("...Go..."); goLabel.setFont(new Font("Comic Sans", Font.PLAIN, 18)); JButton northButton = new JButton("North"); JButton eastButton = new JButton("East"); JButton southButton = new JButton("South"); JButton westButton = new JButton("West"); JButton northeastButton = new JButton("Northeast"); JButton northwestButton = new JButton("Northwest"); JButton southeastButton = new JButton("Southeast"); JButton southwestButton = new JButton("Southwest"); JButton takeButton = new JButton("Take"); JButton dropButton = new JButton("Drop"); JButton giveButton = new JButton("Give"); JButton backButton = new JButton("Back"); JButton chargeButton = new JButton("Charge"); JButton fireButton = new JButton("Fire"); JButton itemsButton = new JButton("Items"); JButton helpButton = new JButton("Help"); JButton fallButton = new JButton("Fall"); JButton quitButton = new JButton("Quit"); ImageIcon picture; if(game.currentRoom == game.construction) picture = new ImageIcon("images/construction.jpg"); else if(game.currentRoom == game.library) picture = new ImageIcon("images/library.jpg"); else if(game.currentRoom == game.pub) picture = new ImageIcon("images/pub.jpg"); else if(game.currentRoom == game.hallway1) picture = new ImageIcon("images/hallway1.jpg"); else if(game.currentRoom == game.hallway2) picture = new ImageIcon("images/hallway2.jpg"); else if(game.currentRoom == game.hallway3) picture = new ImageIcon("images/hallway3.jpg"); else if(game.currentRoom == game.lab) picture = new ImageIcon("images/lab.jpg"); else if(game.currentRoom == game.mainEntrance) picture = new ImageIcon("images/mainEntrance.jpg"); else if(game.currentRoom == game.office) picture = new ImageIcon("images/office.jpg"); else if(game.currentRoom == game.theatre) picture = new ImageIcon("images/theatre.jpg"); else picture = new ImageIcon("images/outside.jpg"); JLabel map = new JLabel(picture, JLabel.CENTER); final JTextArea textArea = new JTextArea(); JScrollPane scrollPane = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); textArea.setEditable(false); textArea.setRows(17); textArea.setColumns(29); textArea.setLineWrap(true); textArea.setWrapStyleWord(true); pane.add(titleLabel); pane.add(authorLabel); pane.add(goLabel); pane.add(northButton); pane.add(eastButton); pane.add(southButton); pane.add(westButton); pane.add(northeastButton); pane.add(northwestButton); pane.add(southeastButton); pane.add(southwestButton); pane.add(map); pane.add(textArea); pane.add(takeButton); pane.add(dropButton); pane.add(giveButton); pane.add(backButton); pane.add(chargeButton); pane.add(fireButton); pane.add(itemsButton); pane.add(helpButton); pane.add(fallButton); pane.add(quitButton); Insets insets = pane.getInsets(); Dimension size; size = titleLabel.getPreferredSize(); titleLabel.setBounds(45 + insets.left, 7 + insets.top, size.width, size.height); size = authorLabel.getPreferredSize(); authorLabel.setBounds(75 + insets.left, 90 + insets.top, size.width, size.height); size = goLabel.getPreferredSize(); goLabel.setBounds(523 + insets.left, 85 + insets.top, size.width, size.height); size = northButton.getPreferredSize(); northButton.setBounds(500 + insets.left, 50 + insets.top, 100, size.height); size = eastButton.getPreferredSize(); eastButton.setBounds(610 + insets.left, 85 + insets.top, 100, size.height); size = southButton.getPreferredSize(); southButton.setBounds(500 + insets.left, 120 + insets.top, 100, size.height); size = westButton.getPreferredSize(); westButton.setBounds(390 + insets.left, 85 + insets.top, 100, size.height); size = northeastButton.getPreferredSize(); northeastButton.setBounds(610 + insets.left, 50 + insets.top, 100, size.height); size = northwestButton.getPreferredSize(); northwestButton.setBounds(390 + insets.left, 50 + insets.top, 100, size.height); size = southeastButton.getPreferredSize(); southeastButton.setBounds(610 + insets.left, 120 + insets.top, 100, size.height); size = southwestButton.getPreferredSize(); southwestButton.setBounds(390 + insets.left, 120 + insets.top, 100, size.height); map.setBounds(75 + insets.left, 170 + insets.top, 275, 272); size = textArea.getPreferredSize(); textArea.setBounds(390 + insets.left, 170 + insets.top, size.width, size.height); size = takeButton.getPreferredSize(); takeButton.setBounds(120 + insets.left, 465 + insets.top, 100, size.height); size = dropButton.getPreferredSize(); dropButton.setBounds(120 + insets.left, 500 + insets.top, 100, size.height); size = giveButton.getPreferredSize(); giveButton.setBounds(230 + insets.left, 465 + insets.top, 100, size.height); size = backButton.getPreferredSize(); backButton.setBounds(230 + insets.left, 500 + insets.top, 100, size.height); size = chargeButton.getPreferredSize(); chargeButton.setBounds(340 + insets.left, 465 + insets.top, 100, size.height); size = fireButton.getPreferredSize(); fireButton.setBounds(340 + insets.left, 500 + insets.top, 100, size.height); size = itemsButton.getPreferredSize(); itemsButton.setBounds(450 + insets.left, 465 + insets.top, 100, size.height); size = helpButton.getPreferredSize(); helpButton.setBounds(450 + insets.left, 500 + insets.top, 100, size.height); size = fallButton.getPreferredSize(); fallButton.setBounds(560 + insets.left, 465 + insets.top, 100, size.height); size = quitButton.getPreferredSize(); quitButton.setBounds(560 + insets.left, 500 + insets.top, 100, size.height); textArea.append(game.printWelcome()); helpButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { textArea.setText(""); textArea.append(game.printHelp()); } } ); quitButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { System.exit(0); } } ); } }

I can't believe I forgot to do that... its always the little things! Thanks!

Don't I have to call the Game class in order to get the printWelcome method?

I have a nullpointerexception runtime error I can't figure out why. I have two classes... one with the print method... and the other thatpulls that method into a textarea... does anybody see any problem with this:
public String printWelcome() { return "Welcome to the World of Zuul!";}
textArea.append(game.printWelcome());
For further reference... heres the entire two classes:
import java.util.*; /** * Class Game - The game. * * @author Martin vanPutten * @version 2007.08.05 */ public class Game { public static void main(String args[]) { Game game = new Game(); ViewManager frame = new ViewManager(); game.play(); } private Parser parser; private Player player; private People person; private Room currentRoom, prevRoom, outside, construction, chargeRoom, fireRoom; public String playerName; private Scanner reader = new Scanner(System.in); public Game() { createRooms(); parser = new Parser(); prevRoom = currentRoom; chargeRoom = currentRoom; player = new Player(playerName, currentRoom, 40, 0); person = currentRoom.getPeople(); } private void createRooms() { Room theatre, pub, lab, office, mainEntrance, hallway1, hallway2, hallway3, library; outside = new Room("outside the main entrance of the university", false); theatre = new Room("in a lecture theatre", false); pub = new Room("in the campus pub", false); lab = new Room("in a computing lab", false); office = new Room("in the computing admin office", false); mainEntrance = new Room("in the main entrance of university", false); hallway1 = new Room("in a hallway from office to theater", false); hallway2 = new Room("in a hallway outside pub", false); hallway3 = new Room("in a hallway outside lab", false); library = new Room("in the library", false); construction = new Room("in construction... turn around. There is a chute. Type 'fall' to fall down the chute. \nYou cannot use the beamer here. There is no return to this room. \nThis room has an aurora around it. You don't worry about it right now", true); currentRoom = outside; outside.setExit("east", theatre); outside.setExit("south", lab); outside.setExit("west", pub); outside.setExit("north", mainEntrance); mainEntrance.setExit("south", outside); mainEntrance.setExit("west", hallway1); mainEntrance.setExit("northeast", hallway2); theatre.setExit("west", outside); theatre.setExit("south", office); theatre.setExit("southwest", lab); theatre.setExit("northwest", hallway2); pub.setExit("east", outside); pub.setExit("southeast", lab); pub.setExit("south", library); pub.setExit("northeast", hallway1); hallway1.setExit("southwest", pub); hallway1.setExit("east", mainEntrance); hallway1.setExit("northwest", hallway3); hallway2.setExit("southwest", mainEntrance); hallway2.setExit("southeast", theatre); hallway3.setExit("southeast", hallway1); hallway3.setExit("northwest", construction); construction.setExit("southeast", hallway3); library.setExit("north", pub); library.setExit("east", lab); lab.setExit("north", outside); lab.setExit("east", office); lab.setExit("northeast", theatre); lab.setExit("northwest", pub); lab.setExit("west", library); office.setExit("west", lab); office.setExit("north", theatre); Item computer, flag, printer, book, ration, mouse, speakers, game, monitor, ring, key; computer = new Item(20, "Computer", "Alienware ALX Computer."); flag = new Item(5, "Flag", "Canada Flag."); printer = new Item(15, "Printer", "Canon Inkjet 530."); book = new Item(2, "Book", "The Lord Of The Rings."); ration = new Item(2, "Ration", "Hamburger."); mouse = new Item(1, "Mouse", "Logitech G7 Mouse."); speakers = new Item(4, "Speakers", "Logitech x540."); game = new Item(1, "PC Game", "Prince Of Persia game."); monitor = new Item(15, "Monitor", "Viewsonic Monitor"); ring = new Item(1, "Ring", "Woodstock High School Graduate Ring."); key = new Item(1, "Key", "This key opens a locked door."); lab.setItem("computer", computer); lab.setItem("printer", printer); lab.setItem("mouse", mouse); lab.setItem("speakers", speakers); lab.setItem("game", game); lab.setItem("monitor", monitor); outside.setItem("flag", flag); library.setItem("book", book); pub.setItem("ration", ration); theatre.setItem("ring", ring); office.setItem("key", key); outside.setPeople("Pookie", "I am hungry.", "ration"); lab.setPeople("Long Don Silver", "It is better to fade out than to fade away.", "ring"); construction.setPeople("Guy", "You almost beat the game...", "key"); } public void play() { printWelcome(); boolean finished = false; while(! finished) { Command command = parser.getCommand(); finished = processCommand(command); } System.out.println("Thank you for playing. Good bye."); } public String printWelcome() { return "Welcome to the World of Zuul!"; //System.out.println("World of Zuul is a new, incredible adventure game."); //System.out.println(); //System.out.println("Type 'help' if you need help."); //System.out.println("You have a beamer to transport to rooms. \nType 'charge' to charge the beamer and 'fire' to transport."); //System.out.println("You can only lift a total of 40 pounds. You will have to drop items to pick others up."); //System.out.println(); //return printDetails(); } public void printDetails() { System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); System.out.println(currentRoom.getPeopleDescription()); } private boolean processCommand(Command command) { boolean wantToQuit = false; if(command.isUnknown()) { System.out.println("I don't know what you mean..."); return false; } String commandWord = command.getCommandWord(); if(commandWord.equals("help")) printHelp(); else if(commandWord.equals("go")) goRoom(command); else if(commandWord.equals("take")) takeItem(command); else if(commandWord.equals("drop")) dropItem(command); else if(commandWord.equals("give")) giveItem(command); else if(commandWord.equals("items")) getItems(command); else if(commandWord.equals("back")) back(command); else if(commandWord.equals("fall")) fall(command); else if(commandWord.equals("charge")) chargeBeamer(command); else if(commandWord.equals("fire")) fireBeamer(command); return wantToQuit; } private void printHelp() { System.out.println("You are lost. You are alone. You wander around at the university."); System.out.println(); System.out.println("Your command words are:"); parser.showCommands(); } private void goRoom(Command command) { if(!command.hasSecondWord()) System.out.println("Go where?"); String direction = command.getSecondWord(); Room nextRoom = currentRoom.getExit(direction); if(nextRoom == null) System.out.println("There is no door!"); else { if(nextRoom.isLocked() == true) { if(player.hasKey() == true) { prevRoom = currentRoom; currentRoom = nextRoom; person = currentRoom.getPeople(); printDetails(); } else System.out.println("You need a key to enter this room."); } else { prevRoom = currentRoom; currentRoom = nextRoom; person = currentRoom.getPeople(); printDetails(); } } } public void back(Command command) { if(command.hasSecondWord()) System.out.println("Please type 'back' to go back."); else goBack(); } public void getItems(Command command) { if(command.hasSecondWord()) System.out.println("Please type 'items' to access your inventory."); else System.out.println(player.playersInventory(command.getSecondWord())); } public void takeItem(Command command) { if(!command.hasSecondWord()) System.out.println("Take what?"); String itemName = command.getSecondWord(); Item items = currentRoom.getItem(itemName); if(items == null) System.out.println("You do not have that item!"); else { if(player.getCurrentWeight() >= player.getMaxWeight()) System.out.println("You cannot pick up any more items. Drop some first."); else if((player.getCurrentWeight() + items.getWeight()) <= player.getMaxWeight()) { player.putItem(itemName, items); System.out.println("You picked up a " + itemName); player.setCurrentWeight(player.getCurrentWeight() + items.getWeight()); currentRoom.removeItem(itemName); } else System.out.println("You cannot pick up any more items. Drop some first."); } } public void giveItem(Command command) { if(!command.hasSecondWord()) System.out.println("Give what?"); String itemName = command.getSecondWord(); Item items = player.getItem(itemName); if(items == null) System.out.println("You do not have that item."); else if(itemName.equals(person.getItem())) { System.out.println("You have givin a " + itemName + " to " + person.getName()); player.setCurrentWeight(player.getCurrentWeight() - items.getWeight()); player.removeItem(itemName); peopleTalk(); } else System.out.println("You cannot give this item to this person."); } public void dropItem(Command command) { if(!command.hasSecondWord()) System.out.println("Drop what?"); String itemName = command.getSecondWord(); Item items = player.getItem(itemName); if(items == null) System.out.println("You have no items!"); else { currentRoom.putItem(itemName, items); System.out.println("You have dropped a " + itemName); player.setCurrentWeight(player.getCurrentWeight() - items.getWeight()); player.removeItem(itemName); } } public void fall(Command command) { if(currentRoom == construction) { if(command.hasSecondWord()) System.out.println("Please type 'fall'. Should you really do this?"); else fallDownChute(); } else System.out.println("What are you talking about?"); } public void chargeBeamer(Command command) { if(command.hasSecondWord()) System.out.println("You only have to type 'charge' to charge the beamer."); else { chargeRoom = currentRoom; System.out.println("The beamer has been charged."); } } public void fireBeamer(Command command) { if(command.hasSecondWord()) System.out.println("You only have to type 'fire' to fire the beamer."); else if(!prevRoom.equals(currentRoom)) { currentRoom = chargeRoom; printDetails(); } } private void goBack() { if(!prevRoom.equals(currentRoom)) { currentRoom = prevRoom; person = currentRoom.getPeople(); printDetails(); } else System.out.println("You cannot go back any farther."); } private void fallDownChute() { currentRoom = outside; prevRoom = currentRoom; person = currentRoom.getPeople(); printDetails(); } private void peopleTalk() { if(person.getName() == "Pookie") System.out.println("I dropped a key somewhere. But I can't remember where? By the way, this food is good."); if(person.getName() == "Long Don Silver") System.out.println("I saw something shiny but I had to use the washroom! Couldn't pick it up! Arrghh. Thanks for the ring though!"); if(person.getName() == "Guy") System.out.println("Congratulations, you have won the game! Please continue to explore Zuul!"); } }
import java.awt.*; import javax.swing.*; import java.awt.event.*; /** * Class ViewPanel - Manages the panels in the frame. * * @author Martin vanPutten * @version 2007.04.05 */ public class ViewPanel extends JPanel { private Game game; public ViewPanel(Container pane) { pane.setLayout(null); JLabel titleLabel = new JLabel("ZUUL"); titleLabel.setFont(new Font("Comic Sans", Font.BOLD, 70)); JLabel authorLabel = new JLabel("By: Martin vanPutten"); authorLabel.setFont(new Font("Comic Sans", Font.PLAIN, 24)); JLabel goLabel = new JLabel("...Go..."); goLabel.setFont(new Font("Comic Sans", Font.PLAIN, 18)); JButton northButton = new JButton("North"); JButton eastButton = new JButton("East"); JButton southButton = new JButton("South"); JButton westButton = new JButton("West"); JButton northeastButton = new JButton("Northeast"); JButton northwestButton = new JButton("Northwest"); JButton southeastButton = new JButton("Southeast"); JButton southwestButton = new JButton("Southwest"); JButton takeButton = new JButton("Take"); JButton dropButton = new JButton("Drop"); JButton giveButton = new JButton("Give"); JButton backButton = new JButton("Back"); JButton chargeButton = new JButton("Charge"); JButton fireButton = new JButton("Fire"); JButton itemsButton = new JButton("Items"); JButton helpButton = new JButton("Help"); JButton fallButton = new JButton("Fall"); JButton quitButton = new JButton("Quit"); ImageIcon picture = new ImageIcon("images/outside.jpg"); JLabel map = new JLabel(picture, JLabel.CENTER); JTextArea textArea = new JTextArea(); textArea.setEditable(false); textArea.setRows(17); textArea.setColumns(29); textArea.setLineWrap(true); textArea.setWrapStyleWord(true); pane.add(titleLabel); pane.add(authorLabel); pane.add(goLabel); pane.add(northButton); pane.add(eastButton); pane.add(southButton); pane.add(westButton); pane.add(northeastButton); pane.add(northwestButton); pane.add(southeastButton); pane.add(southwestButton); pane.add(map); pane.add(textArea); pane.add(takeButton); pane.add(dropButton); pane.add(giveButton); pane.add(backButton); pane.add(chargeButton); pane.add(fireButton); pane.add(itemsButton); pane.add(helpButton); pane.add(fallButton); pane.add(quitButton); Insets insets = pane.getInsets(); Dimension size; size = titleLabel.getPreferredSize(); titleLabel.setBounds(45 + insets.left, 7 + insets.top, size.width, size.height); size = authorLabel.getPreferredSize(); authorLabel.setBounds(75 + insets.left, 90 + insets.top, size.width, size.height); size = goLabel.getPreferredSize(); goLabel.setBounds(523 + insets.left, 85 + insets.top, size.width, size.height); size = northButton.getPreferredSize(); northButton.setBounds(500 + insets.left, 50 + insets.top, 100, size.height); size = eastButton.getPreferredSize(); eastButton.setBounds(610 + insets.left, 85 + insets.top, 100, size.height); size = southButton.getPreferredSize(); southButton.setBounds(500 + insets.left, 120 + insets.top, 100, size.height); size = westButton.getPreferredSize(); westButton.setBounds(390 + insets.left, 85 + insets.top, 100, size.height); size = northeastButton.getPreferredSize(); northeastButton.setBounds(610 + insets.left, 50 + insets.top, 100, size.height); size = northwestButton.getPreferredSize(); northwestButton.setBounds(390 + insets.left, 50 + insets.top, 100, size.height); size = southeastButton.getPreferredSize(); southeastButton.setBounds(610 + insets.left, 120 + insets.top, 100, size.height); size = southwestButton.getPreferredSize(); southwestButton.setBounds(390 + insets.left, 120 + insets.top, 100, size.height); map.setBounds(75 + insets.left, 170 + insets.top, 275, 272); size = textArea.getPreferredSize(); textArea.setBounds(390 + insets.left, 170 + insets.top, size.width, size.height); size = takeButton.getPreferredSize(); takeButton.setBounds(120 + insets.left, 465 + insets.top, 100, size.height); size = dropButton.getPreferredSize(); dropButton.setBounds(120 + insets.left, 500 + insets.top, 100, size.height); size = giveButton.getPreferredSize(); giveButton.setBounds(230 + insets.left, 465 + insets.top, 100, size.height); size = backButton.getPreferredSize(); backButton.setBounds(230 + insets.left, 500 + insets.top, 100, size.height); size = chargeButton.getPreferredSize(); chargeButton.setBounds(340 + insets.left, 465 + insets.top, 100, size.height); size = fireButton.getPreferredSize(); fireButton.setBounds(340 + insets.left, 500 + insets.top, 100, size.height); size = itemsButton.getPreferredSize(); itemsButton.setBounds(450 + insets.left, 465 + insets.top, 100, size.height); size = helpButton.getPreferredSize(); helpButton.setBounds(450 + insets.left, 500 + insets.top, 100, size.height); size = fallButton.getPreferredSize(); fallButton.setBounds(560 + insets.left, 465 + insets.top, 100, size.height); size = quitButton.getPreferredSize(); quitButton.setBounds(560 + insets.left, 500 + insets.top, 100, size.height); textArea.append(game.printWelcome()); quitButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { System.exit(0); } } ); } }

This is the runtime error...
Exception in thread "main" java.lang.NoSuchMethodError: ViewPanel.<init>(LListener V
at ViewManager.<init>(ViewManager.java:23)
at Game.main(Game.java:15)

Process completed.
I am using JCreator as my editor... this is exactly how it represents the error.

I decided to stick with the absolute positioning... I like total control of my programs... but it gets this runtime error that I can't figure out... can anybody see anything.. this is one of my classes...
import java.awt.*; import javax.swing.*; /** * Class ViewPanel - Manages the panels in the frame. * * @author Martin vanPutten * @version 2007.04.05 */ public class ViewPanel extends JPanel { public ViewPanel(Listener list, Container pane) { pane.setLayout(null); JLabel titleLabel = new JLabel("ZUUL"); titleLabel.setFont(new Font("Comic Sans", Font.BOLD, 70)); JLabel authorLabel = new JLabel("By: Martin vanPutten"); authorLabel.setFont(new Font("Comic Sans", Font.PLAIN, 24)); pane.add(titleLabel); pane.add(authorLabel); Insets insets = pane.getInsets(); Dimension size = titleLabel.getPreferredSize(); titleLabel.setBounds(25 + insets.left, 5 + insets.top, size.width, size.height); size = authorLabel.getPreferredSize(); authorLabel.setBounds(55 + insets.left, 40 + insets.top, size.width, size.height); //...//In the main method: //Insets insets = frame.getInsets(); //frame.setSize(300 + insets.left + insets.right, 125 + insets.top + insets.bottom); } }

I know you can position panels by using BorderLayout or even FlowLayout... but it doesn't get my panels exactly as I want them... is there a way to set them eactly where you want them by using a from left and from top method (like css for example)?

I'm building a neat little game where the user can type commands to go places and pick items up and whatnot. But I want to create a locked door into the construction room and only if the player picks up the key can they enter this key... otherwise the user cannot enter this room. I have many classes that all compile right and run great. Can anybody help me figure out how to create this locked room in construction room (to get there go west northeast northwest and northwest again).

import java.util.*; /** * Class Game - The game. * * @author Martin vanPutten * @version 2007.08.05 */ public class Game { public static void main(String args[]) { Game g = new Game(); g.play(); } private Parser parser; private Player player; private Room currentRoom, prevRoom, outside, construction, chargeRoom, fireRoom; String playerName; private Scanner reader = new Scanner(System.in); public Game() { createRooms(); parser = new Parser(); prevRoom = currentRoom; chargeRoom = currentRoom; player = new Player(playerName, currentRoom, 40, 0); } private void createRooms() { Room theatre, pub, lab, office, mainEntrance, hallway1, hallway2, hallway3, library; outside = new Room("outside the main entrance of the university"); theatre = new Room("in a lecture theatre"); pub = new Room("in the campus pub"); lab = new Room("in a computing lab"); office = new Room("in the computing admin office"); mainEntrance = new Room("in the main entrance of university"); hallway1 = new Room("in a hallway from office to theater"); hallway2 = new Room("in a hallway outside pub"); hallway3 = new Room("in a hallway outside lab"); library = new Room("in the library"); construction = new Room("in construction... turn around. There is a chute. Type 'fall' to fall down the chute. \nYou cannot use the beamer here. There is no return to this room. \nThis room has an aurora around it. You don't worry about it right now"); currentRoom = outside; outside.setExit("east", theatre); outside.setExit("south", lab); outside.setExit("west", pub); outside.setExit("north", mainEntrance); mainEntrance.setExit("south", outside); mainEntrance.setExit("west", hallway1); mainEntrance.setExit("northeast", hallway2); hallway2.setExit("southwest", mainEntrance); hallway2.setExit("southeast", theatre); theatre.setExit("west", outside); theatre.setExit("south", office); theatre.setExit("southwest", lab); theatre.setExit("northwest", hallway2); pub.setExit("east", outside); pub.setExit("southeast", lab); pub.setExit("south", library); pub.setExit("northeast", hallway1); hallway1.setExit("southwest", pub); hallway1.setExit("east", mainEntrance); hallway1.setExit("northwest", hallway3); hallway3.setExit("southeast", hallway1); construction.setExit("southeast", hallway3); library.setExit("north", pub); library.setExit("east", lab); lab.setExit("north", outside); lab.setExit("east", office); lab.setExit("northeast", theatre); lab.setExit("northwest", pub); lab.setExit("west", library); office.setExit("west", lab); office.setExit("north", theatre); Item computer, flag, printer, book, ration, mouse, speakers, game, monitor, ring, key; computer = new Item(20, "Computer", "Alienware ALX Computer."); flag = new Item(5, "Flag", "Canada Flag."); printer = new Item(15, "Printer", "Canon Inkjet 530."); book = new Item(2, "Book", "The Lord Of The Rings."); ration = new Item(2, "Ration", "Hamburger."); mouse = new Item(1, "Mouse", "Logitech G7 Mouse."); speakers = new Item(4, "Speakers", "Logitech x540."); game = new Item(1, "PC Game", "Prince Of Persia game."); monitor = new Item(15, "Monitor", "Viewsonic Monitor"); ring = new Item(1, "Ring", "Woodstock High School Graduate Ring."); key = new Item(1, "Key", "This key opens a locked door."); lab.setItem("computer", computer); lab.setItem("printer", printer); lab.setItem("mouse", mouse); lab.setItem("speakers", speakers); lab.setItem("game", game); lab.setItem("monitor", monitor); outside.setItem("flag", flag); library.setItem("book", book); pub.setItem("ration", ration); theatre.setItem("ring", ring); outside.setItem("key", key); if() hallway3.setExit("northwest", construction); } public void play() { printWelcome(); boolean finished = false; while(! finished) { Command command = parser.getCommand(); finished = processCommand(command); } System.out.println("Thank you for playing. Good bye."); } private void printWelcome() { System.out.println("What is your name?"); playerName = reader.nextLine(); System.out.println(); System.out.println("Welcome " + playerName + " to the World of Zuul!"); System.out.println("World of Zuul is a new, incredible adventure game."); System.out.println(); System.out.println("Type 'help' if you need help."); System.out.println("You have a beamer to transport to rooms. \nType 'charge' to charge the beamer and 'fire' to transport."); System.out.println("You can only lift a total of 40 pounds. You will have to drop items to pick others up."); System.out.println(); System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); } private boolean processCommand(Command command) { boolean wantToQuit = false; if(command.isUnknown()) { System.out.println("I don't know what you mean..."); return false; } String commandWord = command.getCommandWord(); if(commandWord.equals("help")) printHelp(); else if(commandWord.equals("go")) goRoom(command); else if(commandWord.equals("quit")) wantToQuit = quit(command); else if(commandWord.equals("take")) takeItem(command); else if(commandWord.equals("drop")) dropItem(command); else if(commandWord.equals("items")) { if(command.hasSecondWord()) System.out.println("Please type 'items' to access your inventory."); else System.out.println(player.playersInventory(command.getSecondWord())); } else if(commandWord.equals("back")) { if(command.hasSecondWord()) System.out.println("Please type 'back' to go back."); else goBack(); } else if(commandWord.equals("fall")) { if(currentRoom == construction) { if(command.hasSecondWord()) System.out.println("Please type 'fall'. Should you really do this?"); else fallDownChute(); } else System.out.println("What are you talking about?"); } else if(commandWord.equals("charge")) { if(command.hasSecondWord()) System.out.println("Please type 'charge' to charge the beamer."); chargeRoom = currentRoom; System.out.println("The beamer has been charged."); } else if(commandWord.equals("fire")) { if(!prevRoom.equals(currentRoom)) { currentRoom = chargeRoom; System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); } } return wantToQuit; } private void printHelp() { System.out.println("You are lost. You are alone. You wander around at the university."); System.out.println(); System.out.println("Your command words are:"); parser.showCommands(); } private void goRoom(Command command) { if(!command.hasSecondWord()) System.out.println("Go where?"); String direction = command.getSecondWord(); Room nextRoom = currentRoom.getExit(direction); if(nextRoom == null) System.out.println("There is no door!"); else { prevRoom = currentRoom; currentRoom = nextRoom; System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); } } public void takeItem(Command command) { if(!command.hasSecondWord()) System.out.println("Take what?"); String itemName = command.getSecondWord(); Item items = currentRoom.getItem(itemName); if(items == null) System.out.println("You do not have that item!"); else { if(player.getCurrentWeight() >= player.getMaxWeight()) System.out.println("You cannot pick up any more items. Drop some first."); else { player.putItem(itemName, items); System.out.println("You picked up a " + itemName); player.setCurrentWeight(player.getCurrentWeight() + items.getWeight()); currentRoom.removeItem(itemName); } } } public void dropItem(Command command) { if(!command.hasSecondWord()) System.out.println("Drop what?"); String itemName = command.getSecondWord(); Item items = player.getItem(itemName); if(items == null) System.out.println("You have no items!"); else { currentRoom.putItem(itemName, items); System.out.println("You have dropped a " + itemName); player.setCurrentWeight(player.getCurrentWeight() - items.getWeight()); player.removeItem(itemName); } } private void goBack() { if(!prevRoom.equals(currentRoom)) { currentRoom = prevRoom; System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); } else System.out.println("You cannot go back any farther."); } private void fallDownChute() { currentRoom = outside; prevRoom = currentRoom; System.out.println(currentRoom.getLongDescription()); System.out.println(currentRoom.getItemDescription()); } private boolean quit(Command command) { if(command.hasSecondWord()) { System.out.println("Quit what?"); return false; } else return true; } }

import java.util.Scanner; import java.util.StringTokenizer; /** * Class Parser - Creates inputs and reading. * * @author Martin vanPutten * @version 2007.08.05 */ public class Parser { private CommandWords commands; private Scanner reader; public Parser() { commands = new CommandWords(); reader = new Scanner(System.in); } public Command getCommand() { String inputLine; String word1 = null; String word2 = null; System.out.print("> "); inputLine = reader.nextLine(); Scanner tokenizer = new Scanner(inputLine); if(tokenizer.hasNext()) { word1 = tokenizer.next(); if(tokenizer.hasNext()) word2 = tokenizer.next(); } if(commands.isCommand(word1)) return new Command(word1, word2); else return new Command(null, word2); } public void showCommands() { commands.showAll(); } }

import java.util.*; /** * Class Player - The rooms. * * @author Martin vanPutten * @version 2007.08.05 */ public class Room { private String description; private HashMap<String, Room> exits; private HashMap<String, Item> items; public Room(String description) { this.description = description; exits = new HashMap<String, Room>(); items = new HashMap<String, Item>(); } public Item getItem(String itemName) { return items.get(itemName); } public void setExit(String direction, Room neighbor) { exits.put(direction, neighbor); } public void setItem(String itemName, Item giveItem) { items.put(itemName, giveItem); } public String getShortDescription() { return description; } public String getLongDescription() { return "You are " + description + ".\n" + getExitString(); } public String getItemDescription() { if(items.size() == 0) return "There are no items in this room."; else { String returnString = "Items:"; Collection<Item> itemList = items.values(); for(Item item : itemList) returnString += " " + item.getName() + ". " + item.getWeight() + " pounds. " + item.getDescription() + "\n"; return returnString; } } private String getExitString() { String returnString = "Exits:"; Set<String> theExits = exits.keySet(); for(String exit : theExits) returnString += " " + exit; return returnString; } public void putItem(String name, Item theItem) { this.items.put(name, theItem); } public Room getExit(String direction) { return exits.get(direction); } public void removeItem(String itemName) { items.remove(itemName); } }

/** * Class Player - The command words. * * @author Martin vanPutten * @version 2007.08.05 */ public class CommandWords { private static final String[] validCommands = { "go", "quit", "help", "back", "take", "drop", "items", "fall", "charge", "fire" }; public boolean isCommand(String aString) { for(int i = 0; i < validCommands.length; i++) if(validCommands[i].equals(aString)) return true; return false; } public void showAll() { for(String command: validCommands) System.out.print(command + " "); System.out.println(); } }

/** * Class Player - How the command words operate. * * @author Martin vanPutten * @version 2007.08.05 */ public class Command { private String commandWord; private String secondWord; public Command(String firstWord, String secondWord) { commandWord = firstWord; this.secondWord = secondWord; } public String getCommandWord() { return commandWord; } public String getSecondWord() { return secondWord; } public boolean isUnknown() { return (commandWord == null); } public boolean hasSecondWord() { return (secondWord != null); } }

import java.util.*; /** * Class Item - All the items in the game * * @author Martin vanPutten * @version 2007.02.05 */ public class Item { private int weight; private String name; private String Idescription; public Item(int weight, String name, String Idescription) { this.weight = weight; this.name = name; this.Idescription = Idescription; } public int getWeight() { return weight; } public String getName() { return name; } public String getDescription() { return Idescription; } }

import java.util.*; /** * Class Player - Player in the game. * * @author Martin vanPutten * @version 2007.08.05 */ public class Player { private String playerName; private Room currentRoom; private int maxWeight; private Item itemInfo; private int currentWeight; private HashMap<String, Item> items; public Player(String playerName, Room currentRoom, int maxWeight, int weight) { this.playerName = playerName; this.currentRoom = currentRoom; this.maxWeight = maxWeight; currentWeight = weight; items = new HashMap<String, Item>(); } public String getPlayerName() { return playerName; } public int getMaxWeight() { return maxWeight; } public void setCurrentWeight(int weight) { currentWeight = weight; } public int getCurrentWeight() { return currentWeight; } public Item getItem(String itemName) { return items.get(itemName); } public void putItem(String name, Item theItem) { this.items.put(name, theItem); itemInfo = theItem; } public void setItem(String itemName, Item giveItem) { items.put(itemName, giveItem); } public String getItemDescription() { if(items.size() == 0) return "There are no items in this room."; else { String returnString = "Items:"; Set<String> keys = items.keySet(); for(String item : keys) returnString += " " + item; return returnString; } } public String returnItems() { String returnString = ""; Set<String> keys = items.keySet(); for(String item : keys) returnString = item; return returnString; } public void removeItem(String itemName) { items.remove(itemName); } public String playersInventory(String item) { Item getItem = items.get(item); if(items.size() == 0) return "You do not have any items!"; else { String returnString = "Inventory:"; Set<String> itemList = items.keySet(); for(String items : itemList) returnString += " " + items; return returnString + "\nThe total weight you are carrying is " + currentWeight + " pounds."; } } }
[ March 08, 2007: Message edited by: Bear Bibeault ]

What is the easiest way to get something from another class in the project and using it in the class you want. For example: currentRoom is an object of Room in the Game class. There is another class called Player... and the player object has to store the currentRoom in the Game class. And... this has to be done in the Player class... its necessary. Whats the easiest way to do this? Even Pseudo code will help as long as the keyword used is in it because chances are, I don't know it. Thanks!!

Thanks man... that really helped... also I learnt what append does.