Promotion
CodeGym University
Learning
Courses
Tasks
Surveys & Quizzes
Games
Help
Schedule
Community
Users
Forum
Chat
Articles
Success stories
Activity
Reviews
Subscriptions
Light theme
Help with tasks
Reviews
About us
Start
Start learning
Start learning now
All questions
Ask a question
Java 25
All quests
All levels
Any status
Questions about tasks
Hot
Lawson
Level 29
Lagos
Question about the task
Hippodrome (part 12)
Java Multithreading
,
Level 1
,
Lesson 16
Resolved
Pls help
I know this question is supposed to be easy but please help me
9/11/20
739
views
11
comments
0
Anitamalina
Level 18
København
Question about the task
Task about algorithms
Java Syntax
,
Level 5
,
Lesson 12
Resolved
This works in my compiler, but not in codeJudge?
Do anyone know why?
11/9/20
554
views
2
comments
0
hidden #10618197
Level 16
Under discussion
Can not run my Application
I can't run my Minesweeper game. java: cannot access javafx.application.Application class file for javafx.application.Application not found What exactly does it mean?
11/8/20
1136
views
6
comments
0
marcus Simoes
Level 13
Dortmund
Question about the task
Let's make the code do something useful!
Java Syntax
,
Level 9
,
Lesson 11
Under discussion
I have no idea what to do.
Requirement 3? Help is much appreciated! Thanks
11/13/20
428
views
3
comments
1
Emre Erkaslan
Level 0
Istanbul
Question about the task
Space Invaders (Part 4/34)
Games
,
Level 0
,
Lesson 6
Under discussion
Help please.
I don't really know what's wrong here.
11/13/20
538
views
1
comment
0
Шарох
Level 12
Under discussion
Hi Coders!
Somethings are strange in this code. What are these ? :/ 1. (public Color color;) : Why it hasn't object? 2. Why in default constructor we use that! :(
11/11/20
460
views
4
comments
0
bamughamye patrick
Level 8
Paris
Question about the task
Streets and houses
Java Syntax
,
Level 7
,
Lesson 4
Archived
Got task right but code i used i lengthy. Can someone show me how a for loop would have been used here? Thanks
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader;
8/26/20
765
views
3
comments
0
Kasia
Level 22
Zabrze
Question about the task
Writing to a file from the console
Java Core
,
Level 3
,
Lesson 11
Resolved
Works here but doesn't pass the validator
I can create a file and save it (i.e as file.txt) and it shows the text on separated lines(including exit) but the program doesn't pass the validation. Additionally, I also got the message from: The program must write absolutely all of the entered lines (including "exit") to the file, each on a ne
11/12/20
644
views
2
comments
0
The Chief
Level 18
Question about the task
Cat and Dog objects: 50,000 each
Java Syntax
,
Level 6
,
Lesson 5
Under discussion
Why is this code wrong?
I don't know why it keeps rejecting my code. Can anyone please tell me how to fix this?
11/11/20
667
views
6
comments
0
Mariam
Level 9
Columbus
Question about the task
Even and odd digits
Java Syntax
,
Level 6
,
Lesson 5
Resolved
IT WORKS but compiler does not excepts. Please help
IT WORKS but compiler does not excepts. Please help
9/9/20
613
views
3
comments
0
Arjun Kiruthivasan
Level 14
Chennai
Question about the task
String array in reverse order
Java Syntax
,
Level 7
,
Lesson 4
Under discussion
where i done mistake??
pls tell me
9/13/18
2004
views
5
comments
0
Maria
Level 22
Moscow
Question about the task
Notepad for new ideas
Java Syntax
,
Level 6
,
Lesson 11
Resolved
The output is NULL...
The task requirements sounds strange.. could please get some hints? Thanks in advance!
10/28/20
750
views
2
comments
0
Onome Brownly-Otiede
Level 9
Galway
Question about the task
The whole duck isn't enough
Java Syntax
,
Level 5
,
Lesson 12
Under discussion
do not understand
i do not understand why this is happening pls help
10/14/20
704
views
2
comments
0
Denis
Level 22
Kharkiv
Question about the task
Human class constructors
Java Syntax
,
Level 10
,
Lesson 11
Under discussion
HELP PLS!
Guys, i am very tired with this. I am worked with this code in IDEA and dont understand anything/ Give me full code pls!
6/21/19
1479
views
3
comments
0
Dmitri
Level 22
Seversk
Question about the task
List of number arrays
Java Syntax
,
Level 9
,
Lesson 11
Under discussion
I've got a strange message
I've got a strange message: The task does not compile on the server! Though it is working as intended in IJ.
11/11/20
531
views
4
comments
0
Rajni Agrawal
Level 12
Bangalore
Question about the task
Catching a group of exceptions
Java Syntax
,
Level 9
,
Lesson 8
Under discussion
Please help to find the problem
I feel the code the working fine. All exceptions are caught but the validation is not going through. Please help.
11/12/20
617
views
2
comments
0
Anitamalina
Level 18
København
Question about the task
Task about algorithms
Java Syntax
,
Level 5
,
Lesson 12
Under discussion
Maximum of N numbers
Negative numbers - what should happen? I make a break from the loop, but should it ignore ? Maybe something else is wrong? import java.util.Scanner; import java.util.Scanner; public class Solution { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(Sy
11/11/20
1079
views
7
comments
0
antoinefleury2416
Level 3
Poitiers
Under discussion
I am blocked
I am blocked, I have no more black matter c I am not paying. what do I do ?
11/11/20
476
views
1
comment
0
Roman Grygorczuk
Level 19
Cracow
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Resolved
What is wrong with the last check?
Hi all, I cannot understand why I cannot pass last requirement. Results seems to be correct. Thanks in advance for any clue! Best, Roman
11/2/20
568
views
4
comments
0
gabe
Level 6
Greenville
Question about the task
Positive number
Java Syntax
,
Level 4
,
Lesson 7
Under discussion
0 not positive
i dunno, but i got the same question as another guy, and his code is needlessly complicated
10/8/20
655
views
10
comments
0
Noob_Coder
Level 22
Springfield
Question about the task
We don't need repeats
Java Syntax
,
Level 8
,
Lesson 8
Under discussion
details error
I don't know if there's something wrong with it,if it has,plz help me thx.need specific details very appreciate
11/11/20
513
views
5
comments
0
Kaiyr Shayakhmetov
Level 22
Question about the task
Tracking changes
Java Core
,
Level 9
,
Lesson 11
Resolved
Could you plz help me with this task!!! Code produces correct results, however can't pass validation
Could you plz help me with this task!!! Code produces correct results, however can't pass validation. Have no idea what is wrong with the code.
8/28/20
750
views
1
comment
0
yehuda b
Level 23
Beersheba
Question about the task
Replacing numbers
Java Core
,
Level 9
,
Lesson 11
Archived
After trying many different solutions it still fails
works well with conditions example, any tips??? disregard isNumber method, it is from one of my previous attempts...
11/9/20
633
views
5
comments
0
Albert
Level 6
Hong Kong
Question about the task
Cat register
Java Syntax
,
Level 4
,
Lesson 2
Under discussion
Sth is wrong
// Result is 0, but the system reads it as passed, weird package com.codegym.task.task04.task0404; /* Cat register */ public class Cat { private static int catCount = 0; public static void addNewCat() { //write your code here Cat cat = new Cat(); Cat.catCount =
11/9/20
597
views
2
comments
0
Dyrits
Level 1
Question about the task
Adding a file to an archive
Java Collections
,
Level 1
,
Lesson 6
Under discussion
Why this is not working?
I don't get it. I look to some other solutions. It is more or less doing the same thing, but just saving the content somewhere else first, but it is kind of the same at the end, no? Also, why don't we simply skip the entries to add the new one?
11/11/20
633
views
1
comment
0
WhiteColloid
Level 7
San Francisco
Question about the task
Maximum of four numbers
Java Syntax
,
Level 4
,
Lesson 6
Resolved
I don't know why the third condition is not satisfied
I don't see a problem here.
11/11/20
603
views
1
comment
0
Philip Butler
Level 32
United Kingdom
Question about the task
Adding a file to an archive
Java Collections
,
Level 1
,
Lesson 6
Under discussion
Finally got this to verify.
Thanks to others for posting their questions and answers. I ended up struggling with this one and doing a fair amount of Googlig to get a solution that verified. The tricky bit was not using the File System, so as others have pointed out creating a temporary file won't verify. For others that are
11/6/19
1569
views
6
comments
12
Nicolas Huet
Level 41
Provins
Question about the task
Working with Java 8's DateTime API
Java Collections
,
Level 10
,
Lesson 10
Resolved
I don't find the issue here
I tried a bunch of different methods but I always the same two conditions that doesn't validates and I really don't find the problem. I was sur it was it was a stupid typo but I don't find it (it's possible I still missed it, dyslexia...). Anyway, if someone can show me the problem that would be aws
11/27/19
1179
views
3
comments
3
Anitamalina
Level 18
København
Question about the task
ConsoleReader class
Java Syntax
,
Level 6
,
Lesson 8
Resolved
Boolean method
Why doesn't this work?
11/9/20
695
views
3
comments
0
Dinesh
Level 7
Delhi
Under discussion
What is wrong with my code?
public class SolUsDollar { public static void main(String[] args) { //write your code here convertEurToUsd(123, 1.18); convertEurToUsd(111, 1.68); System.out.println(US_dollars); } public static double convertEurToUsd(int eur, double exchangeRate) {
11/10/20
539
views
6
comments
0
Show more
1
...
116
117
118
119
120
...
374
Please enable JavaScript to continue using this application.