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Java 25
All quests
All levels
Any status
Questions about tasks
Hot
Juan Barbeito
Level 3
Buenos Aires
Under discussion
Why the program doesn't correct my activities?
From level 3, where you have to download IntelliJ IDEA, every time I solve an activity the page does not correct me. And in the IntelliJ IDEA program I cannot solve the tasks because they are the ones I have already done. Please help me because I cant do anything!
6/24/20
618
views
0
comments
0
Marek
Level 6
Warszawa
Under discussion
co zrobić gdy nie działa konsola
w konsoli nie wyświetlają się żadne dane wyjściowe (na tablecie) a w InteliJ IDEA gdy uruchamiam sprawdzenie kodu bez weryfikacji za każdym razem sprawdza mi jedno stare zadanie i to puste (w sensie wypełnione domyślnie do etapu " tutaj wpisz swój kod " ) a nie to które aktualnie jest zaprogramowane
6/25/20
711
views
0
comments
0
hidden #10625598
Level 23
Under discussion
can somebody send me the link to this article? its not available in german.. maybe its available in another language
https://codegym.cc/quests/lectures/de.questcore.level08.lecture09
6/25/20
462
views
0
comments
0
pratyush prakash
Level 2
patna
Under discussion
I am 13 years old.
I don't know anything about java before can I learn from this app or it is useless for me please reply wisely
6/27/20
594
views
0
comments
0
Mysha Khetan
Level 1
Under discussion
how to use this app
not able to join this app plzz help me at this
7/6/20
791
views
0
comments
0
f.haratinik79
Level 0
Under discussion
payment code
Hi , How can I search a word in file in java? How can I create payment code in java?
7/6/20
641
views
0
comments
0
Rebekah H
Level 8
Gothenburg
Under discussion
CodeGym module for IntelliJ not working
Everytime I try to use it this popup some, I hit "Yes" and "Ok", then I try it again. Same thing. Any ideas?
7/7/20
531
views
0
comments
0
Sanjeevkumar
Level 22
Mumbai
Question about the task
Chicken factory
Java Core
,
Level 4
,
Lesson 6
Under discussion
help!!!!!!
description
7/10/20
509
views
0
comments
0
BlueJavaBanana
Level 37
Question about the task
Make a word chain
Java Multithreading
,
Level 2
,
Lesson 9
Under discussion
Failing second to last requirement only
Any ideas? Passes all but second to last task. How can my output match the requirements but someho I'm not using all words? My test data: //Test data in: Disney Okinawa Washington Yellowstone Auckland Kalamazoo Norfolk //Test data out: Washington Norfolk Kalamazoo Okinawa Auckland Disney Yellows
7/12/20
885
views
0
comments
0
Isaque Silva
Level 3
São Paulo
Under discussion
Sintaxe do Java Level 3
I can't verify the task. When you click the check button nothing happens. Task Number 0305
6/22/20
598
views
0
comments
0
Dinesh
Level 7
Delhi
Under discussion
Difference
While executing the code in IDE On Right Click Please Refer image:- What is the difference between Run Solution.main() & Run Solution.main with coverage.
1/12/21
442
views
0
comments
0
Chandan Thapa
Level 22
Dubai
Question about the task
John Johnson
Java Core
,
Level 9
,
Lesson 11
Resolved
can you please help guys
cant seem to find the bug.
1/11/21
584
views
5
comments
0
Liliane Top
Level 24
Amsterdam
Question about the task
Mirror image
Java Core
,
Level 9
,
Lesson 11
Resolved
Why do I fail the test?
Input seems as requested.
1/12/21
570
views
4
comments
0
anupam jha
Level 7
Question about the task
Lonely arrays interact
Java Syntax
,
Level 7
,
Lesson 4
Under discussion
task condition
where r strings in number array?? i dnt understand clearly last condition....
1/11/21
546
views
1
comment
0
remote87
Level 18
Sofia
Question about the task
Longest sequence
Java Syntax
,
Level 8
,
Lesson 6
Resolved
And again....
I think I have done it, I go trough all my test cases, but I still don't pass the last condition.... Any advice?
1/11/21
900
views
16
comments
0
Liliane Top
Level 24
Amsterdam
Question about the task
Words with numbers
Java Core
,
Level 9
,
Lesson 11
Resolved
Confused why this is not working
This is very strange and I do not see but there must be several mistakes... 1) Why does it not read the entire file? I thought by using fileReader.read(buffer); It would read and put all the data in a buffer 2) When I split the buffer and want to read it back it only write 2 of the 5 words back with
1/11/21
784
views
8
comments
0
Liliane Top
Level 24
Amsterdam
Question about the task
Finding data inside a file
Java Core
,
Level 8
,
Lesson 11
Resolved
I have the solution but I do not understand it
Questions 1) what do they mean with the 'specified id' in this context? It seems like we have to create a method in which you can pass the int id? 2) what is this args[0] in this context? I only know it from the main method that you enter an argument(s) in the main method when you modify the main
1/8/21
584
views
2
comments
0
Josephine
Level 2
Normal
Question about the task
Reading and writing to a file: CodeGym
Java Core
,
Level 10
,
Lesson 2
Resolved
Someone please help...why the exception occurs
Someone please help...why the exception occurs
1/11/21
435
views
3
comments
0
catalinene
Level 29
Greven
Question about the task
Distributing items into baskets with their own lock
Java Multithreading
,
Level 6
,
Lesson 8
Under discussion
Why would a method use multiple Locks?
Code bellow (get and clear methods) : public class Solution { private static final int LOCK_COUNT = 12; private final Node[] buckets; private final Object[] locks; static class Node { public Node next; public Object key; public Object value; } publi
4/13/20
918
views
0
comments
2
Michael
Level 1
Warsaw
Under discussion
zadania na tel
Jak zrobić by zadania się same rozwiazywały na pc jest przycisk co jak juz nie dajemy rady za nas rozwiązuje zadanie
6/1/20
474
views
0
comments
0
Tony Roy
Level 41
Victorville
Question about the task
Aggregator (part 16)
Java Collections
,
Level 8
,
Lesson 15
Under discussion
Frustrating task, please help!!
What you see is not my most recent version. If I set things up to read just the first page of CodeGym cached files, works as expected: Set while(true) to while(page == 0) in both IndeedStrategy and LinkedinStrategy getJobPostings and for URL_FORMAT, http://codegym.cc/testdata/big28data.html
6/9/20
867
views
0
comments
1
BlueJavaBanana
Level 37
Question about the task
Number algorithms
Java Core
,
Level 10
,
Lesson 10
Under discussion
What are the passing requirements?
I fail at: The getNumbers method must return the array of numbers that satisfy the task conditions. I'm guessing it is a time issue. What kind of numbers do we have to hit to pass?
6/13/20
604
views
0
comments
0
Jimbo
Level 20
Shenzhen
Under discussion
How to change the lesson language to others?
How to change the lesson language to others?
6/18/20
852
views
0
comments
0
Angus McDonald
Level 5
Sydney
Question about the task
Snake (Part 20/20)
Games
,
Level 0
,
Lesson 1
Under discussion
Can I re-publish my game?
I've made some edits that helped it function better and would love to publish them.
6/18/20
602
views
0
comments
0
Rafal Pawlowski
Level 15
Swaythling
Question about the task
Set of cats
Java Syntax
,
Level 8
,
Lesson 11
Under discussion
Why lambda does not work for this task?
Hello. I have solved this task but tried to complete it using lambda: cats.removeIf(cat -> cats.size() > 2); Unfortunately last condition was not met. Any idea why?
6/19/20
532
views
0
comments
0
Bartek Józefiak
Level 34
Wrocław
Question about the task
CashMachine (part 14)
Java Collections
,
Level 9
,
Lesson 15
Under discussion
Someone know what is wrong here? I cant see my mistake :C
Only last condition not valid
6/21/20
576
views
0
comments
0
Vo
Level 41
Sofia
Question about the task
Adding a file to an archive
Java Collections
,
Level 1
,
Lesson 6
Resolved
Things are getting out of control
I had several working solutions and none of them was accepted. My solution right now looks almost as the one in the answer. The only difference I see, is that I am using map while CG is using their own object. So, what is wrong here? Is my solution wrong or it just does not follow the standards of C
1/11/21
499
views
0
comments
0
Deborah Wenrich
Level 7
Pembroke Pines
Question about the task
Time conversion
Java Syntax
,
Level 3
,
Lesson 5
Under discussion
Can someone check my code?
I have been going around in circles. I'm sure the problem is simple to somebody. Would someone check my code?
11/15/19
1152
views
4
comments
0
J_DJ
Level 4
Saint Louis
Question about the task
Time conversion
Java Syntax
,
Level 3
,
Lesson 5
Under discussion
I typed the return statment but why does it not see the return? it says illegal start type
5/5/20
796
views
4
comments
0
Usman Jutt
Level 4
Pir Mahal
Question about the task
Time conversion
Java Syntax
,
Level 3
,
Lesson 5
Resolved
help me plz
i tried
9/27/18
3009
views
6
comments
0
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