Why we use initialization block

[nuzzle]

Straight from Java:

Note that Java is defined by its standard (with the book I mentioned as official interpretation).

I find the statement you refer to misleading. What a compiler does or doesn't isn't part of the Java language unless the standard says so. The book I mention has a more accurate description (in 2.5.2 Initialization Blocks),

"It is executed as if it were placed at the beginning of every constructor in the class"

The same sourse states about static initializers (2.5.2 Static Initialization):

"The static initializers are executed after a class is loaded before it is actually used"