Unknown Java Feature

Some days ago, my friend vic told me about one unknown java feature, that recalls some kind of enclosure. He show to me that in java you can execute something like this:



HashMap myMap = new HashMap(){{


put(new Integer(1),"one");
put(new Integer(2),"two");
put(new Integer(3),"three");
put(new Integer(4),"four");


}};


Then myMap is a new already initialized HashMap, so for example if you want to build a Map factory with some List filled with beans you can do something like this


class Book{

public Integer isbn;
public String title;
public String author;
...

// here goes setters and getters

}


In Java 5.


// ordered books by isbn;
public Map
buildCatalog(final List <book> books){

return new TreeMap(){{

for(Book book: books){

put(book.getIsbn(), book);

}

}};

}


In Java 4 this will look like:


// ordered books by isbn;
public Map
buildCatalog(final List books){

return new TreeMap(){{

for(int i=0; i<books.size;i++){

book=(Book)books.get(i);
put(book.getIsbn(), book);

}

}};

This code creates an anonimous class, that inherits TreeMap, then internally calls the method put, but differs to the clasic implementation of an anonimous class, for example when you write an ActionListener as an anonimous class you write it to define the ActionPerform method but you don't call it at the moment.

I consider this interesting, I couldn't find some official explanation of this feature, but I will continue searching. Comment's are welcome :)

Something sadly funny

I was walking this morning on the street in my way to work, and I found something very funny but sadly too. If this is done because people are worry about their security, what is wrong with this society.

Welcome to nowhere republic of somewhere

Hi

The ones who want me to write a blog, your whish become real. I will "try" to  keep updated this blog with some things that I am 
hacking throw, some things that I consider interesting, funny or exciting. My basic idea writing this blog is sharing, learn and help.

I choose the title "Nowhere republic of somewhere" to emphasize the idea of a network nation, where there are no political-regional (like the ones that separates countries) boundaries, no races here, just humans in front of a screen sharing.  I also use the name scheo-ohl for the url, sheol-ohl is an old world used by the hebrew people that references to their graveyards, I use this to say all humans
are the same, all of us will die and all of us will go to the same place.

Well, welcome to my blog.

-- May the source be with you.