Cany you help me with Installation and Disk Utility questions?
Greetings.
I'm just learning this stuff, so your responses in basic terminology would be appreciated. (Instruct me as you would my grandson). I have two questions.
First, I bought a used dual 450 from a friend, and, as I do not have the disks or license for the OS, I decided to make it legal by purchasing, registering, and installing new Panther DVDs. As I have been running 10.3.9 and the new disks are labeled eMac 10.3.3, is there anything I should or should not do in the process of installing the new disks? Do I need to install 10.3.3 and then download the 10.3.9 update? Will I lose anything in the process? I assume the eMac disks will work OK on a G4 tower.
Second, After power failures (common where I live), when I re-start the computer, it won't progress beyond the spinning spoke thing (I don't know what it's called), so I have to shut the computer down, and, after one or two more attempts to start up, it seems to start up OK.
I was told that, after a situation like this, I should start up with the install disk and run Disk Utility to repair the start-up disk.
The problem is that when I attempted to do this with the new DVD (again, I have not installed the OS from the DVD yet), the computer started up fine, but Disk Utility ran for a minute or so, then gave me the following message: "Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility." This happened twice in succession. I quit Disk Utility (although it warned me that I could rended the disk inoperable). The disk seems OK, but I don't know what the problem is with DIsk Utility, or what to do.
Thanks for your help.
G4 Dual 450 Mac OS X (10.3.9) 1 GB RAM
The problem is that when I attempted to do this with
the new DVD (again, I have not installed the OS from
the DVD yet), the computer started up fine, but Disk
Utility ran for a minute or so, then gave me the
following message: "Disk Utility has lost its
connection with the Disk Management Tool and cannot
continue. Please quit and relaunch Disk Utility."
This happened twice in succession. I quit Disk
Utility (although it warned me that I could rended
the disk inoperable). The disk seems OK, but I don't
know what the problem is with DIsk Utility, or what
to do.
Hi Jerry:
Getting back to the problem you're having with Disk Utility, a number of people have encountered this following an update to iTunes. If I understand correctly, when you bought the G4 it came with Panther installed, which your friend had updated to 10.3.9.
In an earlier post, Kappy posted the most succinct work-around I have found for this error:
1. Navigate to the /Library/Receipts/ folder.
2. Locate the iTunes.pkg and iTunesX.pkg files and move them to the Desktop.
3. Run Disk Utility and repair permissions.
4. Move the .pkg files back into the /Library/Receipts/ folder.
Give it a try and let us know how it works. As for your installation DVD, I have to concur with the others who have posted: it's meant specifically for one model of the eMac. It may work on another mac, but odds are it'll be problematic.
Andrew
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hi
can you help me with my problem please, player label doesn't show up in the applet and the draw string method it doesn't draw any strings like X or O for the game I don't know what is the problem maybe it is with MousePressed method which is in Board class. I tried to write the code of the location many times I'm not sure if the problem comes from there.
there is no error in my code, but it doesn't work.
this is class Board which has the mouseListener
class Board extends JPanel implements MouseListener, MouseMotionListener
private JLabel playerlabel;
private boolean play;
private boolean start;
private int turn;
private Square squares[][];
private Player myplayer[][];
public Board()
setBackground( Color.WHITE );
playerlabel = new JLabel( "X player first" );
//playerlabel.setLayout(null);
// playerlabel.setLocation(500,500);
add( playerlabel );
play = true;
turn = 1;
squares = new Square[3][3];
myplayer = new Player[3][3];
int x = 40;
int y = 40;
for (int i=0; i<3; i++){
x = 40;
for (int j=0; j<3; j++){
Square s = new Square( x,y );
squares[i][j] = s;
x +=50;
y +=50;
this.addMouseListener(this);
this.addMouseMotionListener(this);
public void mouseClicked( MouseEvent event ){}
public void mouseMoved( MouseEvent event ){}
public void mouseEntered( MouseEvent event ){}
public void mouseExited( MouseEvent event ){}
public void mousePressed( MouseEvent event )
{int xPos = event.getX();
int yPos = event.getY();
if(play && turn ==1){
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
int x = squares[i][j].getX();
int y = squares[i][j].getY();
if(xPos> x && xPos<x+40&& yPos> y && yPos<y+40){
if( squares[i][j].getOccupied() ==0 ){
String ptext;
ptext = "X";
Player p = new Player(x, y,ptext);
myplayer[i][j] = p;
squares[i][j].setOccupied(1);
playerlabel.setText( "O Player Turn" );
turn = 2;
repaint();
Win();
else{
turn = 2;
playerlabel.setText( "O Player Turn" );
repaint();
if ( play && turn ==2 )
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
int x = squares[i][j].getX();
int y = squares[i][j].getY();
if(xPos> x && xPos<x+40&& yPos> y && yPos<y+40){
if( squares[i][j].getOccupied() ==0 ){
String ptext;
ptext = "O";
Player p = new Player(x, y,ptext);
myplayer[i][j] = p;
squares[i][j].setOccupied(2);
playerlabel.setText( "X Player Turn" );
turn = 1;
repaint();
Win();
else{
turn = 1;
playerlabel.setText( "X Player Turn" );
repaint();
public void mouseReleased( MouseEvent event )
public void mouseDragged( MouseEvent event )
public void Win(){
if(squares[0][0].getOccupied() == squares[0][1].getOccupied() &&squares[0][1].getOccupied()==squares[0][2].getOccupied() &&squares[0][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[1][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[1][2].getOccupied() &&squares[1][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if(squares[2][0].getOccupied() == squares[2][1].getOccupied() &&squares[2][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if(squares[0][0].getOccupied() == squares[0][1].getOccupied() &&squares[0][1].getOccupied()==squares[0][2].getOccupied() &&squares[0][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[1][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[1][2].getOccupied() &&squares[1][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if(squares[2][0].getOccupied() == squares[2][1].getOccupied() &&squares[2][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
//Vertically win
if (squares[0][0].getOccupied() == squares[1][0].getOccupied() &&squares[1][0].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[0][1].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][1].getOccupied() &&squares[2][1].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if(squares[0][2].getOccupied() == squares[1][2].getOccupied() &&squares[1][2].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if (squares[0][0].getOccupied() == squares[1][0].getOccupied() &&squares[1][0].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[0][1].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][1].getOccupied() &&squares[2][1].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if(squares[0][2].getOccupied() == squares[1][2].getOccupied() &&squares[1][2].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
//Diagonal win
if (squares[0][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[0][2].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if (squares[0][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[0][2].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
}//end win
public void setTurn(int t)
turn = t;
playerlabel.setText( "X Player Plays First" );
public void paintComponent( Graphics g )
super.paintComponent( g );
this.setBackground( Color.WHITE );
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
g.setColor( Color.BLACK );
g.drawRect( squares[i][j].getX(), squares[i][j].getY(), 50, 50 );
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
myplayer[i][j].draw(g);
//End of paintComponent
}and this is the whole code of my program.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
class Player{
private int xCoordinate;
private int yCoordinate;
private String playerText;
public Player(int x, int y, String t)
playerText = t;
xCoordinate = x;
yCoordinate = y;
public void draw(Graphics g)
g.drawString(playerText, xCoordinate, yCoordinate);
public void SetText(String t)
{ playerText = t;
}//end player
class Square
private int x;
private int y;
private int occupied;
public Square(int x1, int y1)
x = x1;
y= y1;
occupied = 0;
public void setX(int x1)
x = x1;
public int getX()
return x;
public void setY(int y1)
y = y1;
public int getY()
return y;
public void setOccupied(int o)
occupied = o;
public int getOccupied()
return occupied;
public class TicTac extends JApplet implements ActionListener
{ private JPanel panel;
private JButton newgame;
private Board B;
public void init()
B = new Board();
add( B, BorderLayout.CENTER );
panel = new JPanel();
newgame = new JButton( "New Game" );
panel.add( newgame);
add( panel, BorderLayout.SOUTH );
newgame.addActionListener(this);
public void actionPerformed( ActionEvent ev)
{ Object source = ev.getSource();
if (source == newgame)
{remove(B);
repaint();
B = new Board();
add( B, BorderLayout.CENTER );
B.setTurn(1);
repaint();
validate();
}//end class TicTac
class Board extends JPanel implements MouseListener, MouseMotionListener
private JLabel playerlabel;
private boolean play;
private boolean start;
private int turn;
private Square squares[][];
private Player myplayer[][];
public Board()
setBackground( Color.WHITE );
playerlabel = new JLabel( "X player first" );
//playerlabel.setLayout(null);
// playerlabel.setLocation(500,500);
add( playerlabel );
play = true;
turn = 1;
squares = new Square[3][3];
myplayer = new Player[3][3];
int x = 40;
int y = 40;
for (int i=0; i<3; i++){
x = 40;
for (int j=0; j<3; j++){
Square s = new Square( x,y );
squares[i][j] = s;
x +=50;
y +=50;
this.addMouseListener(this);
this.addMouseMotionListener(this);
public void mouseClicked( MouseEvent event ){}
public void mouseMoved( MouseEvent event ){}
public void mouseEntered( MouseEvent event ){}
public void mouseExited( MouseEvent event ){}
public void mousePressed( MouseEvent event )
{int xPos = event.getX();
int yPos = event.getY();
if(play && turn ==1){
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
int x = squares[i][j].getX();
int y = squares[i][j].getY();
if(xPos> x && xPos<x+40&& yPos> y && yPos<y+40){
if( squares[i][j].getOccupied() ==0 ){
String ptext;
ptext = "X";
Player p = new Player(x, y,ptext);
myplayer[i][j] = p;
squares[i][j].setOccupied(1);
playerlabel.setText( "O Player Turn" );
turn = 2;
repaint();
Win();
else{
turn = 2;
playerlabel.setText( "O Player Turn" );
repaint();
if ( play && turn ==2 )
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
int x = squares[i][j].getX();
int y = squares[i][j].getY();
if(xPos> x && xPos<x+40&& yPos> y && yPos<y+40){
if( squares[i][j].getOccupied() ==0 ){
String ptext;
ptext = "O";
Player p = new Player(x, y,ptext);
myplayer[i][j] = p;
squares[i][j].setOccupied(2);
playerlabel.setText( "X Player Turn" );
turn = 1;
repaint();
Win();
else{
turn = 1;
playerlabel.setText( "X Player Turn" );
repaint();
public void mouseReleased( MouseEvent event )
public void mouseDragged( MouseEvent event )
public void Win(){
if(squares[0][0].getOccupied() == squares[0][1].getOccupied() &&squares[0][1].getOccupied()==squares[0][2].getOccupied() &&squares[0][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[1][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[1][2].getOccupied() &&squares[1][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if(squares[2][0].getOccupied() == squares[2][1].getOccupied() &&squares[2][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if(squares[0][0].getOccupied() == squares[0][1].getOccupied() &&squares[0][1].getOccupied()==squares[0][2].getOccupied() &&squares[0][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[1][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[1][2].getOccupied() &&squares[1][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if(squares[2][0].getOccupied() == squares[2][1].getOccupied() &&squares[2][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
//Vertically win
if (squares[0][0].getOccupied() == squares[1][0].getOccupied() &&squares[1][0].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[0][1].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][1].getOccupied() &&squares[2][1].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if(squares[0][2].getOccupied() == squares[1][2].getOccupied() &&squares[1][2].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if (squares[0][0].getOccupied() == squares[1][0].getOccupied() &&squares[1][0].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[0][1].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][1].getOccupied() &&squares[2][1].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if(squares[0][2].getOccupied() == squares[1][2].getOccupied() &&squares[1][2].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
//Diagonal win
if (squares[0][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
else if (squares[0][2].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 1)
{playerlabel.setText("Player 1 X WON THE GAME!");
play =false; }
if (squares[0][0].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][2].getOccupied() &&squares[2][2].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
else if (squares[0][2].getOccupied() == squares[1][1].getOccupied() &&squares[1][1].getOccupied()==squares[2][0].getOccupied() &&squares[2][0].getOccupied() == 2)
{playerlabel.setText("Player 2 O WON THE GAME!");
play =false; }
}//end win
public void setTurn(int t)
turn = t;
playerlabel.setText( "X Player Plays First" );
public void paintComponent( Graphics g )
super.paintComponent( g );
this.setBackground( Color.WHITE );
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
g.setColor( Color.BLACK );
g.drawRect( squares[i][j].getX(), squares[i][j].getY(), 50, 50 );
for (int i=0; i<3; i++){
for (int j=0; j<3; j++){
myplayer[i][j].draw(g);
//End of paintComponent
Edited by: mshadows on May 18, 2008 7:53 AMI was playing with this a little bit and came up with this game model, something that I'm sure can be improved upon greatly:
TttXO.java
an enum to encapsulate X vs O. I could use a boolean here since it has 2 states, but this seems more intuitive to me
package dy08.m05.ttt;
* tic tac toe encapsulation of X vs O
* @author Pete
public enum TttXO
X, O
}TttCell.java
encapsulates an individual cell in the tictactoe grid.
package dy08.m05.ttt;
* Tic Tac Toe Game cell
* can be occupied or not
* can hold TttXO X or O or null
* @author Pete
public class TttCell
private boolean occupied = false;
private TttXO xo = null;
public TttCell()
* sets a Square for either x or o
* @param TttXO
* @return true if successful, false if already occupied
public boolean setXO(TttXO xo)
if (occupied)
return false;
else
occupied = true;
this.xo = xo;
return true;
public void reset()
occupied = false;
xo = null;
public boolean isOccupied()
return occupied;
public TttXO getXO()
return xo;
// used to test and debug the class
public String toString()
if (occupied)
return xo.toString();
else
return "-";
package dy08.m05.ttt;
* Tic Tac Toe game model
* @author Pete
public class TttGameModel
private TttCell[][] cellGrid = new TttCell[3][3];
private boolean xTurn = true;
private boolean win = false;
public TttGameModel()
for (int i = 0; i < cellGrid.length; i++)
for (int j = 0; j < cellGrid.length; j++)
cellGrid[i][j] = new TttCell();
public void reset()
xTurn = true;
win = false;
for (int i = 0; i < cellGrid.length; i++)
for (int j = 0; j < cellGrid[i].length; j++)
cellGrid[i][j].reset();
public boolean isXTurn()
return xTurn;
public boolean isWin()
return win;
* @param row
* @param col
* @return true if valid move, false if game already over or cell occupied
public boolean takeTurn(int col, int row)
TttXO currentXO = TttXO.O;
TttCell cell = cellGrid[row][col];
if (win)
return false;
if (cell.isOccupied())
return false;
if (xTurn)
currentXO = TttXO.X;
cell.setXO(currentXO);
win = checkWin(col, row, currentXO);
xTurn = !xTurn; // toggle xturn
return true;
public boolean checkWin(int col, int row, TttXO xo)
boolean win = false;
// first rows and columns
boolean temp = true;
for (int i = 0; i < 3; i++)
temp &= cellGrid[row][i].getXO() == xo;
win |= temp;
temp = true;
for (int i = 0; i < 3; i++)
temp &= cellGrid[i][col].getXO() == xo;
win |= temp;
if (row == col) // if slash diagonal
temp = true;
for (int i = 0; i < 3; i++)
temp &= cellGrid[i][i].getXO() == xo;
win |= temp;
if (row + col == 2) // if backslash diagonal
temp = true;
for (int i = 0; i < 3; i++)
temp &= cellGrid[i][2 - i].getXO() == xo;
win |= temp;
return win;
// used to test and debug the class
public String toString()
StringBuilder sb = new StringBuilder();
for (int i = 0; i < cellGrid.length; i++)
for (int j = 0; j < cellGrid[i].length; j++)
sb.append(cellGrid[i][j] + " ");
sb.append("\n");
if (win)
sb.append("win! Game over");
else
sb.append("No winner yet");
return sb.toString();
// test the class
public static void main(String[] args)
TttGameModel model = new TttGameModel();
checkMove(model, 0, 0);
checkMove(model, 1, 0);
checkMove(model, 1, 1);
checkMove(model, 2, 0);
checkMove(model, 1, 0); // bad move
checkMove(model, 2, 2);
// to test the class
private static void checkMove(TttGameModel model, int i, int j)
System.out.println("OK move: " + model.takeTurn(i, j));
System.out.println(model + "\n");
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