• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Paul Clapham
  • Jeanne Boyarsky
  • Liutauras Vilda
Sheriffs:
  • Rob Spoor
  • Bear Bibeault
  • Tim Cooke
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Piet Souris
Bartenders:
  • Frits Walraven
  • Himai Minh

Question Java Challengers Rafael Chinelato del Nero

 
Ranch Hand
Posts: 35
2
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hello Rafael,

Thanks for creating a resource to help people strengthen their Java programming skill.

My question(s) for you:

What is the format of the challenges? For example, are these typical academic/interview programming questions where there's a problem description and we're asked to implement a code solution to arrive at expected output? Are they real world or mock code problems where we're asked make updates or bugfixes?. Does it cover general programming topics, such as data structures, algorithms, OOP, etc.? Is it some combination of any/all of these?

Can we get a teaser challenge that represents what the average problem might look like?
 
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Is it challengers or challenges? It would appear from the book's website that is is challenges. I presume you have lots of puzzles or strange problems to solve.
 
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I've downloaded the book and there looks like there are pages missing?...not the challenge i was expecting tbh :-)
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Did you download a free sample or a complete paid‑for version?
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Paid version, cost just under €10....looks like chapters 10 and 11 are incomplete so far, they only have what will be covered in the chapter. I haven't checked all of the remaining chapters but those I have checked have actual content as opposed to chapters 10 & 11.
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I think only the author or the publishers can explain the missing parts.
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I've emailed the publishers
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
What a good idea.
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hmmm...my sarcasm detector is showing a reading that is off the charts
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Declan Barrett wrote:. . . my sarcasm detector is . . .

out of order.
 
Author
Posts: 16
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

David Gillette wrote:Hello Rafael,

Thanks for creating a resource to help people strengthen their Java programming skill.

My question(s) for you:

What is the format of the challenges? For example, are these typical academic/interview programming questions where there's a problem description and we're asked to implement a code solution to arrive at expected output? Are they real world or mock code problems where we're asked make updates or bugfixes?. Does it cover general programming topics, such as data structures, algorithms, OOP, etc.? Is it some combination of any/all of these?

Can we get a teaser challenge that represents what the average problem might look like?



Hi David, thanks for your kind words!

The format of the Java Challenges is focused on the main core Java concepts and usually, you will have to find out what will happen when you run/compile the code. At the end of every chapter, there is a real-world Java Challenge where you will use the techniques learned in the chapter to solve it.

Also, you will be using the main core Java features in the real-world day-to-day work. That's because we have to use inheritance, Collections, polymorphism, overloading, Exceptions, lambdas in our daily work. By knowing those concepts very well, definitely we can create high-quality code and get rid of bugs more easily. The book is not covering data structures but it covers some of the main Design Patterns.

You will find similar Java Challenges to this one:
https://javachallengers.com/advanced-polymorphic-overloading-java-challenge/

Let me know if that answer your question! Cheers!

 
Rafael del Nero
Author
Posts: 16
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Campbell Ritchie wrote:Is it challengers or challenges? It would appear from the book's website that is is challenges. I presume you have lots of puzzles or strange problems to solve.



Hi Campbell, that's a good question. The Challengers are the developers who do the Java code Challenges. The Java Challenges are the code challenges

I wouldn't say "strange" xD but challenging and trick Java code Challenges so developers can challenge themselves to become better with Java.
 
Rafael del Nero
Author
Posts: 16
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Declan Barrett wrote:I've downloaded the book and there looks like there are pages missing?...not the challenge i was expecting tbh :-)



Declan Barrett wrote:Paid version, cost just under €10....looks like chapters 10 and 11 are incomplete so far, they only have what will be covered in the chapter. I haven't checked all of the remaining chapters but those I have checked have actual content as opposed to chapters 10 & 11.



Hi Declan, firstly thanks for your comment! To answer your question, this is the first version of the Java Challengers book. I am currently working on the following chapters. So, that means you will get a new version of the book on average every 2 weeks. Feel free to give me feedback about the book also so you can get the very best version of the book. Also, feel free to let me know what code challenges you were expecting. Another great advantage of the living book is that I will be also adding new Java Challenges for the latest Java versions, so this book is awesome to keep up to date with the latest Java versions. Cheers!



 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Thank you for the reply
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Rafael del Nero wrote:. . . similar Java Challenges . . .

My, that one makes the average cert exam question look easy
 
David Gillette
Ranch Hand
Posts: 35
2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hey Rafael,

Rafael del Nero wrote:Let me know if that answer your question!



Yes, you answered my question. It looks like this would be useful for java certification prep. It just so happens I'm preparing for those exams. I hope I win a copy.

Thanks!
 
Rafael del Nero
Author
Posts: 16
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Campbell Ritchie wrote:

Rafael del Nero wrote:. . . similar Java Challenges . . .

My, that one makes the average cert exam question look easy



Hi Campbell, I will take it as a compliment because the Java Challenges are supposed to be harder than the certification exam questions
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Rafael del Nero wrote:

Campbell Ritchie wrote:

Rafael del Nero wrote:. . . similar Java Challenges . . .

My, that one makes the average cert exam question look easy



Hi Campbell, I will take it as a compliment because the Java Challenges are supposed to be harder than the certification exam questions



Phew!!!  
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Declan Barrett wrote:. . . Phew!!!  

Don't go thinking that makes the cert exams any easier
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Campbell Ritchie wrote:

Declan Barrett wrote:. . . Phew!!!  

Don't go thinking that makes the cert exams any easier



   
 
Campbell Ritchie
Marshal
Posts: 72913
330
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Declan Barrett wrote:. . .    

The other way to look at it is, it is more satisfying to pass a difficult exam. You will have to put a lot of work into passing any cert exams.
 
Declan Barrett
Ranch Hand
Posts: 36
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
True and books like Java challengers can only help
 
Ranch Foreman
Posts: 408
10
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
At least right now, the biggest challenge to the 819 is that the time is really tight.

Just knowing everything isn't enough to pass if you are kind of slow or let yourself get bogged down, let alone being fairly slow.

In general, I prefer harder problems with longer time limits, which I think the book may be more in line with.

Also, many questions on the real and mock exams test various areas of understanding at once, so if you prepare thinking questions will be isolated to just one area of knowledge it can also be a rough experience.
 
Rafael del Nero
Author
Posts: 16
5
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Jesse Silverman wrote:At least right now, the biggest challenge to the 819 is that the time is really tight.

Just knowing everything isn't enough to pass if you are kind of slow or let yourself get bogged down, let alone being fairly slow.

In general, I prefer harder problems with longer time limits, which I think the book may be more in line with.

Also, many questions on the real and mock exams test various areas of understanding at once, so if you prepare thinking questions will be isolated to just one area of knowledge it can also be a rough experience.



Hi Jesse, you are absolutely right. The Java Challengers book provides Java code challenges that will take longer than normal certification questions to answer. So it works perfectly to what you like! Cheers.
 
Hoo hoo hoo! Looks like we got a live one! Here, wave this tiny ad at it:
Thread Boost feature
https://coderanch.com/t/674455/Thread-Boost-feature
reply
    Bookmark Topic Watch Topic
  • New Topic