Can we execute without main () method Program in java

// * execute without main method Program *//

class Maind
{
static
{
System.out.println("Hello execute without main method.");
System.exit(0);
}
}

Compile :     javac Maind.java
       Run :    java Maind
Output :-
               Hello execute without main method.

______________________________________________

// *....... execute without main method Program........... /

class Maind
{
static
{
System.out.println("Hello execute without main method.");
}
}

Compile : javac Maind.java
Run: java Maind

Output :-
               Hello execute without main method.
               Exception in thread "main" java.lang.NoSuchMethodError: main