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Study guide for the Oracle Certified Professional, Java SE 8 Programmer Exam (1Z0-809)

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Hi Esteban, In the BufferedWriter code snippet for chapter 23: try ( BufferedWriter bw = new BufferedWriter( new FileWriter("/file.txt") ) ) { w.newLine("Writing to the file..."); } catch(IOException e) {...

Hi Esteban, In chapter 28 for the RecursiveTask example code, FindMinimumAction firstSubtask = new FindMinimumAction(data, start, mid); FindMinimumAction secondSubtask = new FindMinimumAction(data, mid, end); // queue the first task firstSubtask.fork();...

Hi Esteban, Please find below the following mentioned in Chapter 27: Atomic Classes The java.concurrent.atomic package contains classes to perform atomic operations, which are performed in a single step without...

Hi Esteban, The book has been great so far. One quick confirmation I wanted regarding this comment in the Comparable interface code: // If the objects are equal, compare by...

Instead of writing binary versions you repeated primitive versions.it's on chapter 10 built-in lambdas

Hi, At Chapter TWENTY-TWO **Time Zones and Daylight Savings** I think there is an issue with the example of when **DST** ends You have put as a result of the...

As you have seen, I have been helping out with minor typo fixes and general enhancements. My observations: - The source files are extremely difficult to read - The source...

Hi, I really appreciate your book for OCPj8. You did a great work ! As for chapter 9 in the question 3. A lambda expression can be used... A. As...