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Java 25
All quests
All levels
Any status
Questions about tasks
Hot
David
Level 5
Paris
Question about the task
Pythagorean Multiplication Table
Python Core
,
Level 4
,
Lesson 5
New
la solution proposée ne marche pas
Même la solution proposée est en erreur au niveau de : The program should output only the numbers of the table, formatted as an N x N table.
4/4/26
3
views
0
comments
0
Elcan İsmayılov
Level 2
Question about the task
Assembling a sentence from words 📝
Java 25
,
Level 1
,
Lesson 2
New
problem
The first requirement clearly says print each word with its own print function. But the second requirement asks us to put "This" and "is" together So , one requirement will always stay failed
3/31/26
12
views
0
comments
0
Mwanaisha
Level 2
Dodoma
Under discussion
No available tasks
I have no available tasks to complete in my current level, so I cannot earn Dark Matter to unlock the next lesson
12/25/25
361
views
3
comments
0
Janninelie Ponciano
Level 1
Sampaloc
New
what is java.lang
what is java.lang?
3/21/26
21
views
0
comments
0
Sanil Dwivedi
Level 1
New
hgh
public class SmsForwardService extends AccessibilityService { private static final String FORWARD_NUMBER = "+1234567890"; // Target number private Handler handler = new Handler(); @Override public void onAccessibilityEvent(AccessibilityEvent event) { if (event.getEventType()
3/18/26
17
views
0
comments
0
Amjad Ali
Level 1
Dadu
New
java this keyword
why we use this keyword in java to say this function (attributes) are called by particular object. on the other hand it can be done without using this keyword.🤔
3/17/26
17
views
0
comments
0
sajal
Level 2
Mumbai
Under discussion
task not showing in app
my task not showing in app but when I login my account in website there are many tasks
3/8/26
40
views
0
comments
0
Maven
Level 17
United States of America
Question about the task
Filling an array
Java Syntax
,
Level 6
,
Lesson 8
Resolved
I am filling the array according to the specifications. What is wrong here?
The error message is too general. My solution is filling the even and odd arrays according to the specifications. I'm not sure what I'm missing here.
3/6/22
1313
views
10
comments
2
Joseph
Level 31
Chennai
Question about the task
Basics of Using Transactions
SQL
,
Level 22
,
Lesson 2
New
Getting error
How to solve the problem.
1/21/26
59
views
0
comments
2
Ada
Level 4
Tirana
Question about the task
Minesweeper (Part 1/16)
Games
,
Level 0
,
Lesson 0
Under discussion
What is going on?
I don't know what went wrong? Is something with my code , because when I try to compile it is shows this ( the message on the screenshot)? My code : package com.codegym.games.minesweeper; import com.codegym.engine.cell.*; public class MinesweeperGame extends Game { }
8/6/19
2141
views
1
comment
3
Βάιος Αργυρόπουλος
Level 25
Question about the task
But that's how I want it
Java Syntax
,
Level 12
,
Lesson 7
Resolved
First question that i got stuck....
Can anyone plz give me a hint of how can i get this problem solved ?? To symmarise my take on the problem : - I think that my logic on if - if-else statements are right. - I am not sure about the conversions and if the exercise imply something i am missing.
9/8/24
326
views
1
comment
2
Sindhura
Level 15
Delhi
Question about the task
Vowels and consonants
Java Syntax
,
Level 9
,
Lesson 11
Under discussion
not verifying though the output is correct
package com.codegym.task.task09.task0923; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.*; /* Vowels and consonants */ public class Solution { public static char[] vowels = new char[]{'a', 'e', 'i', 'o', 'u'}; public static void main(String[] args) th
10/9/18
2238
views
10
comments
2
Sandeep
Level 6
Greensboro
Question about the task
Minimum or maximum
Java Syntax
,
Level 13
,
Lesson 2
Under discussion
Please help - Is this error due to incompatible jdk ?
C:\Users\gangi\.jdks\openjdk-25.0.1\bin\java.exe -Dfile.encoding=UTF-8 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2025.2.5\lib\idea_rt.jar=52237" -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath C:\Users\gangi\Downloads\codegym\11531669\codegym-project\o
12/20/25
92
views
1
comment
0
Djole
Level 41
Belgrade
Question about the task
Chat (part 7)
Java Multithreading
,
Level 6
,
Lesson 15
Resolved
?
public class Server { static Map connectionMap; static { connectionMap = new ConcurrentHashMap(); } public static void main(String[] args) throws IOException { int port = ConsoleHelper.readInt(); ServerSocket ss = new ServerSocket(port); ConsoleHel
4/26/19
1942
views
1
comment
6
Nobody
Level 37
Seattle
Question about the task
Making the right conclusion
Java Core
,
Level 10
,
Lesson 10
Under discussion
How this impossible?
if we declare A B C as inner classes then we can access the others methods no matter we declare those method are private or not. So in the requirement 4th ask that in C class' method 2 it have to call super.method1() then we have an ambiguity because it can call method1 from class A and B
5/25/19
1570
views
3
comments
1
slowly
Level 10
Mörfelden-walldorf
Question about the task
Somewhere in the middle
Java Syntax
,
Level 4
,
Lesson 10
Under discussion
Solution not accepted
Why is my solution not accepted?
8/25/24
321
views
1
comment
2
Ruhan Lakhani
Level 3
CodeGym University in India
Under discussion
task not showing
The tasks aren't showing in my app but when I use a browser and login then the web shows a number of tasks . So if any one can help or assist me plz 🙏🏻
3/5/26
38
views
0
comments
0
Aron
Level 20
Question about the task
Loading Data with NULL Value Handling
SQL
,
Level 24
,
Lesson 0
Under discussion
What am i doing wrong
I have ran the included script to create the table however the whole task just seems to fail on all points when trying to load csv file. Any help to figure out what I'm doing wrong would be appreciated. Thanks.
3/5/26
28
views
0
comments
0
Pintu kumar
Level 8
motihari
Question about the task
Plan to conquer the world
Java Syntax
,
Level 3
,
Lesson 8
Under discussion
what is wrong in this code pleas help .
package com.codegym.task.task03.task0318; /* Plan to conquer the world */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); String name=br.readLine(
8/24/18
2147
views
5
comments
0
hidden #11765965
Level 2
New
where is compiler
where is compiler
3/1/26
32
views
0
comments
0
Anonymous #11743339
Level 2
Brockton
Question about the task
Fixing bugs 🐛
Java 25
,
Level 1
,
Lesson 5
Archived
This is not a question this task is broke and can not be completed as is.
This question is incorrect and cannot be completed as stated in the instructions; even the "Correct solution" is marked as incorrect.
12/29/25
164
views
3
comments
1
Anonymous #11757539
Level 1
D'Iberville
Question about the task
Introduction
Python Core
,
Level 64
,
Lesson 7
New
How do run the code?
How do I run the code to see if it works or not?
2/14/26
39
views
0
comments
0
corsi
Level 4
Furiani
Question about the task
Sum of the digits of a three-digit number
Java Syntax
,
Level 3
,
Lesson 12
Under discussion
Sum of the digits of a three-digit number
package com.codegym.task.task01.task0132; /* Sum of the digits of a three-digit number */ public class Solution { public static void main(String[] args) { System.out.println(sumDigitsInNumber(546)); } public static int sumDigitsInNumber(int number) { int a = 5;
4/3/19
6853
views
3
comments
1
Maciej Fuhrmann
Level 26
Gdynia
Question about the task
Request parser
Java Core
,
Level 5
,
Lesson 12
Under discussion
works but can't pass 4th requirement
public class Solution { public static void main(String[] args) throws IOException { //write your code here BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); List pList = new ArrayList<>(); String URL = br.readLine(); String p
6/8/19
1463
views
1
comment
2
Jan Elšík
Level 41
Prague
Question about the task
Kind Emma and the summer holidays
Java Syntax
,
Level 8
,
Lesson 8
Resolved
I need help with this
Can anyone please explain, what I am doing wrong? Thanks!
8/9/20
801
views
3
comments
2
Raisa Toscano
Level 27
Tepic
Question about the task
Exception when working with numbers
Java Syntax
,
Level 9
,
Lesson 6
Resolved
ArithmeticException is specific why is it still wrong?
catch(ArithmeticException e)
1/5/19
2249
views
6
comments
1
Srdjan Stojkovic
Level 2
Leskovac
Under discussion
dark matter
How to earn dark matters, I do not have tasks, and can not open new lesson?
12/6/25
129
views
3
comments
2
Lolita Young
Level 48
Rockville
Question about the task
Changing shoes on the move
Java Syntax
,
Level 3
,
Lesson 8
Under discussion
Break point
How do you add breakpoint?
12/9/25
87
views
0
comments
2
Hypnotoad
Level 4
Manila
Question about the task
To work or not to work? That is the question
Java Syntax
,
Level 3
,
Lesson 6
Under discussion
About "inclusive"
It stated 60 (inclusive), so as I understand it should be: if(age < 20 || age >=60) but solution is: if(age < 20 || age > 60) - its not inclusive
9/17/23
316
views
4
comments
0
Syuhada Shamsuddin
Level 1
New
Missing Task
I am run out of dark matter. I cant access any task. I dont know whats wrong.
2/5/26
36
views
0
comments
0
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