Top 10 Websites for Advanced Level Java Developers

This is my collection of websites for advanced level Java developers. Those website provide news, answers to general questions or interview questions, great lectures, etc. Quality is the key factor of good websites. In my opinion, they all have the highest quality. In the following, I will also share how I use these websites for learning or for fun. You may think some sites are good for any level developers, but I think it is how they are used determines whether they are good sites for an advanced level Java developer.

1. Stackoverflow

Stackoverflow.com is probably the most popular website in the programming world. There are millions of good questions and answers. Learning an API or a programming language often rely on code examples, stackoverflow has a lot of code segments.

Another good thing about stackoverflow is that it is social. You can view questions under some certain tags, e.g. “java” and “regex”, then you can see what question is most frequently asked and most voted. This can serve as a good resource for learning, also a good resource to write popular topics of Java bloggers.

stackoverflow

URL: http://www.javased.com

2. DZone

I would say this website is fun, lots of developers share their blog articles. It is like an adventure, you never know what you are going to read next from this site.

dzone

URL: http://www.dzone.com

3. LeetCode

If interview question is java specific, like “what array look like in memory in Java”, you can get answers from a lot of Java tutorials. However, if the question is something like “how to convert an sorted array to a balanced tree”, then leetcode is the right place to go. It is a social platform for preparing IT technical interviews and contains a collection of algorithm related questions. The best part is that it also has an online judge which can check if your code is correct or not by feeding different size of data. To be successful in a technical interview, they believe it is mainly repeating these three important steps: code → read → discuss.

leetcode

URL: http://leetcode.com/

4. Java SE Technical Documentation

This website contains all documents you will need to use API of Java SE. Even if you are an advanced level Java developer, I’m pretty sure that you will find something useful and official here. For example, you can read some tutorials of “Essential Java Classes”, “Deployment”, etc.

oracle-doc

URL: http://docs.oracle.com/javase/

5. Github

You probably know that you can host your projects for free there, but you may not know it is an excellent resource for learning popular Java libraries and frameworks. For instance, if you want to learn Spring MVC framework, you can search and find some open source projects. As the “monkey see monkey do” rule works for learning frameworks, you will be able to learn the frameworks quickly by examples, especially if you already have some experience with similar frameworks.

github

URL: https://github.com/

6. Coursera

This is the best site for video lectures. You can find a lot of good computer science courses from famous professors of top schools. Some of them are even the inventor of some computer science areas.

courseera

URL: https://www.coursera.org/

7. Java World

This site contains a large collection of Java tutorials on various kinds of topics. A lot of articles are well written and has pictures/diagram for illustrations. It can be used as a book for deep learning.

javaworld

URL: http://www.javaworld.com/

8. Javased

Nowadays a large portion of Java development is using APIs provided by some libraries or frameworks. We almost always use some classes from some libraries to program a task. Javased.com is a site that provides code examples for popular API classes. More than 10,000 API classes are covered.

javased

URL: http://stackoverflow.com/

9. Wikipedia

This is one of the best resources for looking up and learning almost any concepts. For example, as an experienced Java developer you may just want to know some concept, but not learn much. This is a great place to find updated information for free. For example, what is service-oriented programming. It can also serve as a huge collection of clues and ideas for your writing. For example, the same word may stand for totally different concepts in different areas. Sometimes it is interesting to know the concept in other areas.

wiki

URL: http://en.wikipedia.org/wiki/

10. Program Creek

Comparing with the above 10 websites, the size of programcreek.com is much smaller. However, programcreek.com is the one of the top 100 Java blogs all over the world. You can find some topics that haven’t been written by any other websites, and each of the articles always contains nice diagrams or code examples. It contains articles written by people from both research and industry, and always share good-quality materials to Java developers. Hopefully, it will also be mentioned in someone's top 10 list some day.

programcreek

URL: http://www.programcreek.com/

Update: Of course there are other nice websites for advanced Java developers. If you think any other site should be here, please leave your comment. I will combine them later here.

Category >> Basics >> Top 10  
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  1. Richard Sun on 2014-1-31

    good to know

  2. udhay on 2014-2-27

    Hey Freshers,

    Its really helpful for me to understand where we i lost in my previous interview.

    If anyone wants to Learn Java in Chennai go to the Besant Technologies which is No.1 Training Institute in Chennai

    Thanks to Besant Technologes..

  3. mahesh sharma on 2014-3-12

    hello, guys
    can anyone want to learn java. this is the one of the best java tutorial.
    http://www.javatpoint.com/java-tutorial

  4. mithilesh on 2014-4-19

    Hello friends
    Please visited this site this is the one of the best java tutorial.
    http://www.javatportal.com

  5. Aarohi Shirke on 2014-6-18
  6. teksonit on 2014-6-25

    Great Information admin thanks For Your Information and Any body wants learn
    Advance JAVA through Online for Details Please go through the Link

    Best Online Advance JAVA Training by IT Professional Trainers

    This Will Helps you aalot.

  7. user on 2014-7-8

    Following website also gives in-depth knowledge on core java

    http://www.codesnippets4all.com

  8. teksonit on 2014-8-20

    Great Information admin thanks For Your Information and Any body wants
    learn JAVA through Online for Details Please go through the Link

    Best Online JAVA Training by IT Professional Trainers

    This Will Helps you aalot.

  9. prem poddar on 2014-9-11

    Write a JSP Program, to manage saving account of a bank with basic feature including opening new account, cash deposit & withdrawal, providing account details and closing of accounts.

  10. jai on 2014-10-28

    Helpful information. I am mentioning one more place, Javawithease which provides simple, easy and step by step learning of java.

    Visit: http://javawithease.com/

  11. Anil on 2015-1-5

    I am also adding one more website that is useful for java developers. http://www.concretepage.com/

  12. Raju on 2015-2-23

    the best java tutorial site http://www.tutorialshead.com . it also provides online java complier.

  13. Pankaj on 2015-7-15

    http://www.tehnostepup.com is very helpful for Core Java basic concepts.

  14. sundher on 2015-10-16

    Thank you very much for providing latest salesforce online training.You can search and visit our website.with best regards:

  15. Bobby Singhal on 2015-12-8

    Wonderful and quite informative article. I’ll be now a regular reader here. I wish to convey a good source of java quiz as well which is http://www.techbeamers.com/. Her one can find awesome quizzes on Java and Python programming.

  16. amir sakhawat on 2016-3-11
  17. instance of java on 2016-3-13
  18. harshit rastogi on 2016-5-14
  19. banti ram on 2016-10-28

    http://www.weclassmates.com

    Java tutorial for beginners and intermediates with easy to understand topics and examples. Just click on the topic you wish to learn and never miss any concept again.

    In addition, we have major IT companies placement papers for you that help you to get ready for your placements.

  20. bantiram on 2016-12-23

    http://www.weclassmates.com

    Java
    tutorial for beginners and intermediates with easy to understand topics
    and examples. Just click on the topic you wish to learn and never miss
    any concept again.

    In addition, we have major IT companies placement papers for you that help you to get ready for your placements.

  21. BenchResources.Net on 2017-3-10

    Good collection !!
    BenchResources.Net has good number of Java articles covering explanation and examples
    visit: http://www.benchresources.net/

  22. candy jlee on 2017-8-28

    Java is high-level programming language.Due to its stability and scalability, you can find Java on mobiles, desktops, large scale applications etc. Java is also gaining big in the field of Internet of Things (IoT).

    candidjava.com

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