sameera kumarasingha

Normall a path ignores all the "."(this directory) it contains. So "c:\personal\.\photos\readme.txt" and "c:\personal\photos\readme.txt" should give identical results for different operations, but in the following code normalize path gives different result than other, can anyone explain the reason for this?
Path p1 = Paths.get("c:\\personal\\.\\photos\\readme.txt"); Path p2 = Paths.get("c:\\personal\\index.html"); Path p3 = p1.relativize(p2); System.out.println(p3); p1 = p1.normalize(); p2 = Paths.get("c:\\personal\\index.html"); p3 = p1.relativize(p2); System.out.println(p3);

Output:
..\..\..\index.html ..\..\index.html

In the book Oracle Certified Professional Java SE 7 Programmer Exams
1Z0-804 and 1Z0-805 by Ganesh & Sharma there is a whole section about Semaphore, Phaser, CountDownLatch, Exchanger and CyclicBarrier. But i couldn't find any of them in the OCPJP exam contents. So are there any questions about these topics in OCPJP?

if you use non-static initilizers same thng happens

public class Initialisation { { y = 10; // System.out.println(y); } int y; {System.out.println(y);} public static void main(String[] args) { new Initialization(); System.out.println("main"); } }