Java Core

Java Core

«The Java Core» quest is intended for those who have already received basic Java training (by completing CodeGym's Java Syntax quest). Here you have to pass 10 fascinating levels where you will learn the basics of OOP, get acquainted with streams, serialization, and method overloading, and you'll learn a lot about interfaces and multiple inheritance. The training is no longer as simple as the «Java Syntax» quest, but regular practice (by completing tasks) will help you pass all 10 levels in this quest, and you'll be ready to complete mini-projects in the near future.

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Pablo SouzaLevel 22 , Brisbane
4 April, 03:36
It took me one month to complete the first part of CodeGym's Java Course. I'm very satisfied with the course because it's based on exercises. Some of them are easy, but for most of them you'll need to research somewhere else. Many users complain in the comments, but that's actually an advantage of the course. Thankfully in my short journey as a developer I realised pretty early on that the life of a coder is 5% coding and 95% looking for answers on the web. I'm pretty sure I'll have to go back to the first part of the course for consultation often. I have no illusions about knowing the Syntax well. But I do think I have a good general understanding of how it works and what to search when I have a specific problem. Something I recommend for anyone trying this course is to create some sort of cheat sheet. I had to research for the same thing over and over as some of the exercises required the same code or something similar to it. I'll create a very detailed cheat sheet for the second part of the course. It's easy to feel tempted to just keep pushing on, but the time I'll spend creating those explanations will save me a lot of time further down the road. Another suggestion is: Read all the articles. I only started doing it at Level 7 and I regret not doing it before because it offers complimentary explanation about the topics. The basic lessons cover the basics of each topic but the articles will dig deeper and help you fill the gaps in your understanding. And the last thing is something I learned a few months ago when learning basic Javascript: Don't leave an exercise without understanding what EACH LINE OF CODE DOES. I know it can be frustrating to be stuck in a single exercise for 2 hours, but we have to remember: when looking at a piece of code for 2 hours (or more), trying stuff and researching every word/concept, THAT TIME IS NOT BEING WASTED. It's actually helping us learn. There's no point finishing an exercise without understanding it.
28 December 2019, 18:43
I have completed java systax but I am not able to gain acces to java core course Can anyone help me?
Boberno1Level 27
29 December 2019, 00:49
I have the same problem.... what's going?
EoogleLevel 10 , Suzhou
2 January, 07:36
i have the problem,too why?
VolrathLevel 15 , San Francisco
9 January, 16:11
the same problem here....
AleksanderLevel 41
14 January, 11:22
Same here..
31 August 2019, 01:28
Hi...... I want to learn Java
KARAN BHOITELevel 15 , Nagpur
13 August 2019, 19:17
i want to know how much it will take to get complete java core if i spend 2 hrs daily...
AlexLevel 41
14 August 2019, 07:20
Hi, On average, you can complete our course in 6-8 months, if you can dedicate around 10-15 hours per week to studying. We do not place any limits on study material, as long as you have an active subscription. By all means, you can complete the entire course in a month, if you're good enough to do so.
Kevin DucLevel 17 , Denver
31 August 2019, 21:34
I think 2-3 hours is great if you are doing it daily. I am actually a college grad using codegym as a refresher. I still find some of the exercises hard, but Google is your friend. I read that I was supposed to be done with the Syntax quest within 2 weeks, whereas it took me 2 months lmao. But as long as you understand the material thoroughly and take your time to understand it, it is definite progress :)
EwertonLevel 30 , Belo Horizonte
29 June 2019, 13:28
1 out of 4 done, only 3 more to go.
Duck MacLevel 3
18 May 2019, 18:20
I have a question about Java.
Duck MacLevel 3
18 May 2019, 18:21
Is it always this complicated?
HrvojeLevel 16 , Zagreb
21 May 2019, 13:36
Its not once you've practiced enough :)
Duck MacLevel 3
23 May 2019, 01:19
O.K, I will keep on practicing!
najeeb ullahLevel 2 , Burewala
12 May 2019, 10:18
How to unlock the 2nd lecture as i completed my first it is not unlocked
EgorLevel 5 , Minsk
10 May 2019, 20:45
Is it for free everything?
// Java PoserLevel 18 , Cincinnati
11 May 2019, 01:19
For now, yes.
EgorLevel 5 , Minsk
11 May 2019, 06:34
I see a slight resemblance to JAVARUSH. ))))) Is it one projekt ? or it is his illegal copy?
Aakash potepalliLevel 20 , Bangalore
12 May 2019, 13:33
i think they are releasing english version of java rush
EgorLevel 5 , Minsk
12 May 2019, 17:53
you're right. I found it out from their oficial facebook group
Duck MacLevel 3
18 May 2019, 18:21
Yes
Aris HuynhLevel 0
10 May 2019, 12:47
Can I take some short-cut test to unlock this?
AlexLevel 41
10 May 2019, 14:02
Unfortunately, not.
Duck MacLevel 3
18 May 2019, 18:22
No
WendellLevel 0
1 February 2019, 03:35
I do not understand d why all modules listed above are u available le
SteveLevel 15 , St. John's
7 February 2019, 13:25
The course has you unlock levels in order. You need to go through the Java Syntax quest before you do this one