public class Demo3
{
   static int x = 123;   // Variable x (1)

   public static void main( String[] args )
   {
      System.out.println("Mystery:");

      int x = 777;       // Variable x (2)

      {
         System.out.println( x );  // (1) what is the value of x ?
      }

      System.out.println( x );     // (2) what is the value of x ?
   }
}