Static block is not executing in JDK 7, “Main method not found”, but works in JDK 1.5

Question

I have written a simple class with one static block

class Hello
{

  static {
           System.out.println(\"Hello\");
       System.exit(0);
     }
}
         


        

Answer 1

You need to probably put public static void main(String[] args){ } method in your class for JDK7. In JDK7, main method's presence is checked before the static block and if it doesn't find one you get the exception.