Very new to java

[Amy Salerno]

Am using Head First Java book.Using textedit and terminal on a mac. This will not compile Any help would be greatly appreciated. Thanks in advance

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 a number between 0 and 9...");
 
 while(true) {
  System.out.println("Number to guess is " + targetNumber);
 
  p1.guess();
  p2.guess();
  p3.guess();
 
 guessp1 = p1.number;
 System.out.println("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 three got it right? " + p3isRight);
  System.out.println("Game is over.");
  break;
} else {
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 ();
  game.startGame();
}
}    

guessgame.java:1: class GuessGame is public, should be declared in a file named GuessGame.java
public class GuessGame {
^
guessgame.java:59: class Player is public, should be declared in a file named Player.java
public class Player {
^
guessgame.java:66: class GameLauncher is public, should be declared in a file named GameLauncher.java
public class GameLauncher {
^
3 errors

[Freddy Wong]

One java file can only have one public class <ClassName>.
For your case, you basically you need 3 java files.
- GuessGame.java
- Player.java
- GameLauncher.java

So don't put everything into one file.

[lei feng]

you can remove "public" key words

[marc weber]

Welcome to JavaRanch! (Always nice to see more Mac users. )

As already indicated, each .java file can contain at most one top-level class that's declared public. (It is not required to contain any.) If a .java file contains a top-level public file, then the name of the file must match that public class name exactly.

But also note that Java is case-sensitive, so "guessgame" (the name of your file) is not the same as "GuessGame" (the name of the class).

The best approach here is to put each top-level class in its own separate file, named to match the class name. This keeps things nice and neat, so you can easily find a class definition by the name of the file. Although as lei suggested, you could get around this by removing the "public" modifier from the class declarations.

[Amy Salerno]

I removed the extra public word. Thank you all for your replies