public class Lazy { private static boolean initial = false ; static { Thread t = new Thread( new ...

cmd下: java -Xbootclasspath/a:ojdbc14_9i.jar;commons-io-1.4.jar; -Xms64m -Xmx256m -jar 你自己的jar包.ja...

public static void main(String [] args){ Sysout.out.println("hello word"); }