JAVA : WITH OUT MAIN METHOD
public class Foo {
static {
System.out.println("Message");
System.exit(0);
}
}
Use a static initializer block to print
the message. This way, as soon as your class is loaded the message will be
printed. The trick then becomes using another program to load your class.
Of course, you can run
the program as java Foo and you will see the
message; however, the command will also fail with a message stating:
Exception in thread
"main" java.lang.NoSuchMethodError: main
The
System.exit(0) lets the program exit before the JVM is looking for the main method, otherwise the following error will be thrown:
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