public class WhileDo
{
    public static void main(String[] args)
    {
        boolean b = true;
        do
        {
                System.out.println("Execute WhileDo while b is true");        
        }
        while (b);   
    }
   
}
如何限定do执行的次数，比如System.out.println("Execute WhileDo while b is true");输出六次就结束程序