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Cannot able to get the Output

Zakir Hosain

Joined: Apr 28, 2007
Posts: 16
I have done this problem from "Head First Java" Chapter 2 - Page 39.
I am not getting the out put.
I am getting the Error Below:

C:\Program Files\Xinox Software\JCreatorV3LE\MyProjects\ClassesandObjects2007\ class GuessGame is public, should be declared in a file named
public class GuessGame
C:\Program Files\Xinox Software\JCreatorV3LE\MyProjects\ClassesandObjects2007\ class Player is public, should be declared in a file named
public class Player
C:\Program Files\Xinox Software\JCreatorV3LE\MyProjects\ClassesandObjects2007\ cannot find symbol
symbol : method prinln(java.lang.String)
location: class
System.out.prinln("Player one guessed" + guessp1);
3 errors


// The coding is below:

public class GuessGame
Player p1;
Player p2;
Player p3;

public void startGame()
p1 = new Player();
p2 = new Player();
p3 = new Player();

int guessp1 = 0;
int guessp2 = 0;
int guessp3 = 0;

boolean p1isright = false;
boolean p2isright = false;
boolean p3isright = false;

int targetNumber = (int) (Math.random() * 10);
System.out.println("I'm thinking of number between 0 and 9....");

while(true) {
System.out.println("Number to guess is" + targetNumber);


guessp1 = p1.number;
System.out.prinln("Player one guessed" + guessp1);

guessp2 = p2.number;
System.out.println("Player two guessed" + guessp2);

guessp3 = p3.number;
System.out.println("Player three guessed" + guessp3);

if (guessp1 == targetNumber)
p1isright = true;

if (guessp2 == targetNumber)
p2isright = true;

if (guessp3 == targetNumber)
p3isright = true;

if (p1isright || p2isright || p3isright)
System.out.println("We have a winner!");
System.out.println("Player one got it right" + p1isright);
System.out.println("Player two got it right" + p2isright);
System.out.println("Player theee got it right" + p3isright);
System.out.println("Game is over.");

System.out.println("Players will have to try again.");

public class Player
int number = 0;
public void guess()
number = (int) (Math.random() * 10);
System.out.println("I'm guessing" + number);

public class GameLauncher
public static void main (String [] args)
GuessGame game = new GuessGame();



"The Choices We Make, Dictates Our Life To Lead".
Remko Strating
Ranch Hand

Joined: Dec 28, 2006
Posts: 893
In java you can have only one public class in a source code file. So remove public class from GuessGame and Player.

Error 3 is a typo. It should have been

I hope this helps

Remko (My website)
SCJP 1.5, SCWCD 1.4, SCDJWS 1.4, SCBCD 1.5, ITIL(Manager), Prince2(Practitioner), Reading/ gaining experience for SCEA,
fred rosenberger
lowercase baba

Joined: Oct 02, 2003
Posts: 11919

Believe it or not, those error messages tell you a lot. You should learn to read them and understand what they mean.

the first two tell you EXACTLY what you need to do: "class GuessGame is public, should be declared in a file named"

in other words: Since the class GuessGame has the 'public' modifier in front of it, you must create a second, separate file called '', and put all the code for THAT class there.

The third error messages says "i have no idea what you are talking about. the specific thing i don't understand is this symbol: prinln(java.lang.String) - oh, and it's some kind of method."

you can then search your code for that symbol (although it also tells you it's line 32). often it's either a typo or you don't have an import correct. in this case, it's pretty obvious you meant println.

There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Consider Paul's rocket mass heater.
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