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Frits Walraven

Creator of Enthuware JWS+ V6
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since Apr 07, 2010
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Recent posts by Frits Walraven

Congratulations Oscar Onyenacho,

Your question has made it to our Journal

Have a Cow!
1 month ago
Congratulations H Lindo,

Your question has made it to our Journal

Have a Cow!
1 month ago
Congratulations kevin Abel,

Your question has made it to our Journal

Have a Cow!
1 month ago
Congratulations Daniel Garcia,

Your question has made it to our Journal

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Congratulations Marvin Domingo,

Your question has made it to our Journal

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1 month ago
Congratulations Freyja Varangr,

Your question has made it to our Journal

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1 month ago
T h e . C o d e R a n c h . J o u r n a l - A u g u s t . 2 0 2 2 . E d i t i o n

Howdy from all the CodeRanch staff, and welcome to the August edition of the CodeRanch Journal.

I n t e r e s t i n g . C o d e R a n c h . F o r u m . P o s t s


* Proving validity

* How to count digits after decimal point

* How would you refactor this using 5 lines of code rules?

* Features of Java I didn't know about

* Post Unary Values

* Generics: return a super type of the current type and given type

* JavaFx worth learning

B o o k . P r o m o t i o n s


There's a book (or software) promotion just about every week at CodeRanch. Just ask a question in the appropriate forum and you're eligible to win a copy of the book.
We've got some promotions coming up. Check the book promo schedule.

Some upcoming ones are:

* AWS Cookbook: Recipes for Success on AWS

* Software Mistakes and Tradeoffs

* OCP Oracle Certified Professional Java SE 17 Developer Practice Tests: Exam 1Z0-829

Our recent book promotions winners can be found below:

* Microservices Testing (Live Project)

* Data-Oriented Programming

* Spring Boot in Practice

All other winners can be found here:

* Book Promotions Winners Page

B o o k . R e v i e w s


We have a dedicated forum for book reviews.

Please check out the latest reviews (also available on our book review grid: Book-Review-Grid)

* Head First Java: A Brain-Friendly Guide, 3rd edition by Kathy Sierra, Bert Bates and Trisha Gee

* Head First Git: A Learner's Guide to Understanding Git from the Inside Out by Raju Gandi

T h e . M o o s e . o n . S o c i a l


The CodeRanch announces latest news/developments frequently on our social media outlets. You can find us at:

  • Twitter - https://twitter.com/coderanch
  • Facebook - https://www.facebook.com/coderanch

  • Follow / Like us so you don't miss a thing.

    A b o u t . T h e . E d i t o r


    Frits Walraven has been a member of CodeRanch since 2010, a Bartender since 2013.

    S u g g e s t i o n s / F e e d b a c k


    If you have any feedback on this month's journal then feel free to create a topic in our Ranch-Office

    J o u r n a l . A r c h i v e


    Our previously published journals are available online at Java-Ranch-Journal
    1 month ago
    Congratulations      
    1 year ago
    Congratulations Ranchers      
    1 year ago

     I have added some additional details as well to show how I got a query.


    Can you please put those details in a new post?
    1 year ago
    A small note if you choose a table per concrete entity class: support of this feature is not guaranteed (spec JPA 2.1) and it has some serious drawbacks

    2.12 Inheritance Mapping Strategies
    Support for the table per concrete class inheritance mapping strategy is optional in this
    release. Applications that use this mapping strategy will not be portable

    The developer certification that was discussed in this forum was: OCMJD (1Z0-856).

    I will move your post to the OCJP forum.
    T h e . C o d e R a n c h . J o u r n a l - F e b r u a r y . 2 0 2 1 . E d i t i o n

    Howdy from all the CodeRanch staff, and welcome to the February edition of the CodeRanch Journal.


    W h a t ' s . N e w?



    * Where did the Recent Topics go to ?!?. One of the most like entries to our forums is missing?

    Recent Topics, as our Trailboss explains: "has been deprecated for years and it is using old code that needs to be removed. The PIE stuff is $1 per month. So if you want to keep using that feature for a while longer, you can shell out five bucks every five months.  Easy.  Or, use the new replacement that functions almost exactly the same."  

    PIE = Programmer's Inner-circle Elite . Having pies means that you have access to some of the premium features of this site: view and post in the hidden pie forum, turn off ads, highlight one thread with a pie (does not cost pie) to name a few and have access to the Recent Topics feature. To buy some slices of PIE click buy pie link

    Is there an alternative? Yes, you can make use of our dashboard functionality.... TL;DR? Have a go at: Edit Profile > Site Personalization > Default view on the home page -> "Most recent topics table" or "Most recent in last month by category" or "Most Recent Only" or .....

    I n t e r e s t i n g . C o d e R a n c h . F o r u m . P o s t s


    * HELP! Problem with Listener

    * How String constructor work exactly when pass Array?

    * Happy valentines day

    * Why are my method calls being executed in reverse order?

    * $25 Java 1Z0-819 exam in honor of Java's 25th anniversary thru April 25th


    B o o k . P r o m o t i o n s



    There's a book (or software) promotion just about every week at CodeRanch. Just ask a question in the appropriate forum and you're eligible to win a copy of the book.
    We've got some promotions coming up. Check the book promo schedule.

    Our recent book promotions and their winners can be found below:

    * Winners: OCP Oracle Certified Professional Java SE 11 Developer Practice Tests

    B o o k . R e v i e w s


    We have a dedicated forum for book reviews.

    Please check out the latest reviews (also available on our book review grid: Book-Review-Grid)

    T h e . M o o s e . o n . S o c i a l


    The CodeRanch announces latest news/developments frequently on our social media outlets. You can find us at:

  • Twitter - https://twitter.com/coderanch
  • Facebook - https://www.facebook.com/coderanch

  • Follow / Like us so you don't miss a thing.


    A b o u t . T h e . E d i t o r



    Frits Walraven has been a member of CodeRanch since 2010, a Bartender since 2013.

    S u g g e s t i o n s / F e e d b a c k


    If you have any feedback on this month's journal then feel free to create a topic in our Ranch-Office

    J o u r n a l . A r c h i v e


    Our previously published journals are available online at Java-Ranch-Journal
    1 year ago