stuck on a problem

[Lee Kerns]

Hey guys, I have decided to learn Java on my own so I have been watching Stanford cs lectures and trying to do their problem sets.

I'm stuck on problem 3 problem set

I have been following this hand out. You can just look at the last page and see what SuperKarel is capable of.

So far this is all I have:

import stanford.karel.*;

public class CheckerboardKarel extends SuperKarel {

	public void run(){
		
		while(frontIsClear()){
		
			putBeeper();
			move();
			move();
		}
			
        turnLeft();  
        move();	
	}
}

the code works fine but I got this error http://i49.tinypic.com/np4zsh.png

Any code that I write after the while loop didn't get processed?

[Kathleen Angeles]

What 'error' were you referring to?

The yellow warnings (which in this case is about ~serializable) is just a warning. It didnt have any effect whatsoever in your java compilation nor the execution of your program.

It does look like the codes after the while is executed. That is why you get that '...blocked' red pop up. That is part of that 'game' design.

-k

[Lee Kerns]

Thanks for the reply.

Oh nvm the error.

If the codes after the while are executed, wouldn't the robot's position be at (8,2) instead of (8,1)?