Very first Newbie

Dear Developers:
I have any idea of JAVA, and like to know some concepts, like:
- What is J2EE is? (I already know that means Java 2 Enterprise Edition) but what can I do with it?
- What is j2SE is? (Also, what can I do with it?)
- What is a Java Architect? What does he do?
- Any other concepts that I should understund?
- Java & UML & RUP? What do they toghether do?
Thanks in Advance,
Norberto.

>
- Any other concepts that I should understund?
How does this work, what is thew output and why /how? ;-class ForHerreran{
   String greeting;
   public ForHerreran(){
      greeting = "Hello ";
public class NowGreetHerreran extends ForHerreran{
   public static void main(String []args){
      NowGreetHerreran nghrn= new NowGreetHerreran();
   public NowGreetHerreran(){
      greetNewbie("herreran");
   public void greetNewbie(String name){
      System.out.println(greeting + name);
}Start with OOPS!

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