Exceptation in thread "main" java.lang.NoSuchMethodError: main

[ner ieru]

GuessGame.class:

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; //game over, so break the loop
			}
			else{
				//We must keep going if nobody got it right!
				System.out.println("Players will have to try again.");
			}//end if/else
		}//end loop
	}//end method
}//end class

Player:

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

GameLauncher.class

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

What am I doing wrong? I read somewhere that you need to use

main (String[] args)

But I'm already doing that, and the code is like this in my book (Head First Java)

Using JDK 1.6.0 update 12 btw

In other words it compiles just fine but won't run.

[Swastik Dey]

Which class are you executing?

[ner ieru]

Thank you for replying, I was executing the GuessGame class, and figured oh yeah kinda stupid to execute the class that doesn't have a main function..

However I would like to

But I got the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: GameLauncher
caused by: java.lang.ClassNotFoundException: GameLauncher
 at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: GameLauncher. Program wil exit.

[Campbell Ritchie]

In which case there is probably a compiler error preventing the GameLauncher.class file from being created. Please check whether you have the GameLauncher.class file in you folder. Use the "dir" instruction on Windows or "ls" on Unix/Linux.
You may need to compile the GameLauncher.java file.

[ner ieru]

Campbell Ritchie wrote:In which case there is probably a compiler error preventing the GameLauncher.class file from being created. Please check whether you have the GameLauncher.class file in you folder. Use the "dir" instruction on Windows or "ls" on Unix/Linux.
You may need to compile the GameLauncher.java file.

That fixed my problem I thank you guys kindly, I'm amazed by how fast you guys always help out!

I'll just continue to annoy the hell out of you guys till I know enough java myself to help others

Btw is it possible to copy text from the cmd to any other application, as I'm trying to by selecting the text I want to copy and using Ctrl+c and Ctrl+v but no success

[Campbell Ritchie]

Which command line are you using? There are hints about copying in this FAQ. On Windows, you can click the top left icon, then you click "edit" on the drop down list, then click highlight text, mark the code with your mouse, then <enter> will copy it to the clipboard. At least I think that's how you do it; I am not on Windows at the moment.

And . . . you're welcome

[edit]It says "mark" on the command prompt menu, not highlight.[/edit]