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thread program

>>What will happen when you attempt to compile and run this code?

public class Runt implements Runnable{
public static void main(String argv[]){
        Runt r = new Runt();
        Thread t = new Thread(r);
        t.start();
        }

        public void start(){
        for(int i=0;i<100;i++)
                System.out.println(i);
        }
}
1) Compilation and output of count from 0 to 99
2) Compilation and no output
3) Compile time error: class Runt is an abstract class. It can't be instantiated.
4) Compile time error, method start cannot be called directly


Answer

3) Compile time error: class Runt is an abstract class. It can't be instantiated.

The class implements Runnable but does not define the run method.








I have not understood above question and answer clearly from link
http://www.jchq.net/certkey/0701certkey.htm 

>>class Runt is an abstract class

Runt never mentioned as abstract any where.



Any ideas, resources, links, sample code highly appreciated. thanks in advance.
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for_yan
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Runt declares that it implements Runnable.

If so, it should implement
public void run() method

If it does not  (like in this code) it will immedaitely generate compiler error
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SOLUTION
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Mick Barry
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