CREATE SEQUENCE your_seq;
CREATE TABLE todo(
  id int default nextval('your_seq'::regclass) PRIMARY KEY,
   todo VARCHAR(255) NOT NULL
);


ECLIPSE J2EE: 
http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/indigosr2

PLUS D'INFO:
http://www.sitepoint.com/java-6-steps-mvc-web-apps/