CodeGym online Java course - Help

matemate123
Level 50
Kraków
Question about the task Unique substrings
Java Collections, Level 9, Lesson 9
New
I don't see where is mistake I think my logic is good but I suppose something I don't see is wrong
22.11.2023
1view
0comments
0
catalin1989
Level 25
Question about the task Introducing tags
Java Core, Level 9, Lesson 11
New
I don't quite fully understant the requirements.Here is what I have done. 1. I am reading the file and appending it to a string builder. 2.I am checking in a while loop is there is a beginning tag. 3.I create a substring from the beginning tag to the ending tag. 4. I check if there is another beginning tag in my substring in a while loop. 4.
22.11.2023
30views
1comment
0
matemate123
Level 50
Kraków
Question about the task Aggregator (part 5)
Java Collections, Level 8, Lesson 15
Resolved
WTF? The same code like solution Three red buttons? What the hell is going on here? I think this project was build untidy...
17.11.2023
27views
4comments
0
Anonymous #11417233
Level 6
Baltimore
Under discussion
How do I unlock tasks in intellij?? Do I need intellij for the entire course??Hey, I recently purchased the pro subscription and downloaded intellij. I am not always using my personal laptop so I am not always able to use intellij. I have 2 questions about the plugin. The first is: how do I unlock the tasks in intellij? The tasks are showing but most of them are locked after
20.11.2023
12views
2comments
0
Erhan H.
Level 23
Istanbul
Question about the task Writing to an existing file
Java Collections, Level 2, Lesson 2
Under discussion
Server drives me crazy !It works locally. I don't understand what is the problem with this server?
10.12.2019
909views
4comments
0
FelixUjo
Level 25
Gijón
Question about the task Counting words
Java Core, Level 9, Lesson 5
Resolved
I think the problem is in the blanks but I don't know what else to try.I think the problem is in the blanks but I don't know what else to try.
18.11.2023
44views
4comments
0
catalin1989
Level 25
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
Can't pass final point. Can I get a hint?!Won't pass final validation point. Be sure that the lines list has the ADDED label with the required lines in the correct places. I have been reading about what others have done. I have tried with this inputs: Here is an example, lets say file one contained: line one is going to be the same line tw
19.11.2023
19views
2comments
0
Angel Stefan Arjoca
Level 26
Bucharest
Question about the task What's in the folder?
Java Collections, Level 1, Lesson 4
Resolved
Total folders??? Any hint!? the total folders request is not passing and i don't no what to do anymore 😣
14.09.2020
476views
3comments
1
catalin1989
Level 25
Question about the task Counting words
Java Core, Level 9, Lesson 5
Resolved
I don't understand why it doesen't work.What I am doing wrong? 1. I append all the file content to a string builder. 2. I replace all the spaces of the builder.toString with a punctuation. 3. I split the string using the "\\p{Punct}" regex into an aray. 4. I compare all the resulting string with the "world" and increment when I have a mat
17.11.2023
36views
3comments
0
FelixUjo
Level 25
Gijón
Question about the task Adapting multiple interfaces
Java Core, Level 9, Lesson 3
Resolved
I don't know what else to try.I don't know what else to try.
13.11.2023
41views
3comments
0
Vijay Anand Bukkuri
Level 2
Suri
Question about the task "I'm here about the job..."
Java Syntax, Level 2, Lesson 0
Under discussion
assign different values what's intValue? (1,how? numericValue? (17 ,how?) size? (8,how?) number? (22, how?)
07.03.2023
116views
1comment
0
christopher freund
Level 6
Houston
Question about the task Reverse
Java Syntax, Level 6, Lesson 3
Under discussion
It seems they want a specific method for the reverse order, method is: for (int i = 0; i < data.length; i++) { System.out.println(data[i]); } This evaluates and runs flawlessly in intelliJ IDEA, but doesn't evaluate in the mobile app version of CodeGym. They specifically want you to set up your for loop
12.11.2023
33views
2comments
0
Jen P
Level 26
Question about the task Caesar cipher
Java Collections, Level 2, Lesson 4
Under discussion
Is online test mechanism wrong ? I always got "Under no circumstances should null be returned", even though my local test got exactly the same correct result Hi guys, I constantly got the same "Under no circumstances should null be returned" error, even though I run the main method to do local test and got exactly the same test result, i,e : "Hello Amigo #@)₴?$0" Which part could I be wrong ??
24.08.2019
1206views
5comments
0
catalin1989
Level 25
Question about the task Prices
Java Core, Level 8, Lesson 11
Resolved
Am I overcomplicating things?My question is this. Am I overcomplicating things?I read some simpler solutions and I can adapt. I have tried this code on my computer and it works as the tasks say but I noticed that I tend to overcomplicate the code.
13.11.2023
38views
5comments
0
Andrei
Level 41
Question about the task Numeral system converter
Java Multithreading, Level 10, Lesson 2
Under discussion
This exercise is supposed to be of medium difficulty, but this is the solution proposed by the mentor:It's just becoming ridiculous... public static Number convertNumberToOtherNumberSystem(Number number, NumberSystem expectedNumberSystem) { checkDataIsValid(number); BigInteger result = to10NumberSystem(number); return from10TOExpectedNumberSystem(result, expectedNumberSy
27.05.2021
350views
3comments
1
Justin Johnson
Level 31
Clearwater
Question about the task Restaurant (part 14)
Java Multithreading, Level 9, Lesson 15
Under discussion
I dont understand what is wrong if anyone could help me with these two conditions, I would really appreciate it. Thank you.
29.09.2020
307views
3comments
1
Jaime Padilla
Level 30
Chandler
Question about the task HTML Editor (part 9)
Java Multithreading, Level 8, Lesson 15
New
My MenuHelper was missing all of the method contents that were supposed to be added last lesson.If you keep failing - The initMenuBar() method must use MenuHelper to initialize the menu in the following order: File, Edit, Style, Align, Color, Font, and Help. You need to view the solution and add in the additional content that was added to the MenuHelper class
11.11.2023
12views
0comments
0
FelixUjo
Level 25
Gijón
Question about the task Rounding numbers
Java Core, Level 8, Lesson 11
Under discussion
I don't know what to do I think I'm missing something
05.11.2023
40views
3comments
0
Anonymous #11418252
Level 15
Question about the task Path update
Java Syntax, Level 9, Lesson 3
Under discussion
What's wrong with my code?Hello! My solution isn't validate from the compiler. Why? Thanks a lot!
11.11.2023
17views
2comments
0
Anonymous #11168903
Level 3
Elizabeth
Question about the task School or college
Java Syntax, Level 3, Lesson 4
Under discussion
It looks like it's done right, but I assume the curly braces not located correctly. PLEASE HELP It looks like it's done right, but I assume the curly braces not located correctly. PLEASE HELP. I dont know what else to do to satisfy 5."If the age is less than 6, then don't display anything". Everything else works. I tried not to put anything in 21st lane, but same result comes out..
29.11.2022
281views
2comments
0
Alana Robinson
Level 4
United States of America
Question about the task School or college
Java Syntax, Level 3, Lesson 4
Under discussion
In this task I keep getting an error message. I'm confused where I should put the curly braces.In this task I keep getting an error message. I'm confused where I should put the curly braces.
10.05.2022
507views
3comments
0
Karthik .R
Level 3
India
Question about the task Reading and converting strings
Java Syntax, Level 2, Lesson 8
Under discussion
how to add lines from keyboard??what does that mean?? what is scanner? why to use that??
08.01.2023
190views
1comment
0
Evghenii Seremet
Level 41
London
Question about the task HTML Editor (part 13)
Java Multithreading, Level 8, Lesson 15
Resolved
I must be doing something wrong, can someone point what is the issue? thanks code from TextEditMenuListener class: public void menuSelected(MenuEvent menuEvent) { JMenuBar jMenuBar = (JMenuBar) view.getContentPane().getComponent(0); for(int i=2; i<6; i++) { JMenu jMenu = jMenuBar.getMenu(i); for (Component item : jMenu.getMenuCompo
24.12.2019
1216views
3comments
1
Artur Svvvskyi
Level 9
Geneva
Under discussion
how to reach the next task without a task menu navigation?how to reach the next task without a task menu navigation? it takes some time to click the bottom and search for the next task in the menu
08.11.2023
19views
1comment
0
Dương Tiến Đạt
Level 41
Ha Noi City
Question about the task Plants vs Zombies
Java Multithreading, Level 8, Lesson 10
Resolved
Where to put arriveAndDeregister()?Can someone tell me where to phaser.arriveAndDeregister()? I tried every place possible and still failed. The validator is really racking by brain.
10.10.2020
437views
6comments
0
Djole
Level 41
Belgrade
Question about the task Mastering switch
Java Multithreading, Level 8, Lesson 2
Resolved
output matches condition, so where is the catch? public static void switchTest(Enum obj) { // Add your code here String s = obj.getClass().getSimpleName(); switch(s){ case "E1": System.out.println(String.format("It's %s.%s", s, obj.name())); break; case "E2":
14.05.2019
1218views
3comments
2
Jesú
Level 4
Madrid
Resolved
I don't understand this about Strings and equality.I think I found a contradiction. In JavaSyntaxZero Level 3 Lecture 6, this is said about strings: However, in the previous lecture, it shows two strings with the exact same text, having different references that point to memory: Could somebody explain why the strings with identical text have diff
07.11.2023
21views
3comments
0
Jonas
Level 41
Vilnius
Question about the task Archiver (part 17)
Java Multithreading, Level 7, Lesson 15
Under discussion
Please help It says: "The method adds new files to the archive incorrectly." I don't know how to do it
31.05.2020
383views
3comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Archiver (part 15)
Java Multithreading, Level 7, Lesson 15
Resolved
Extraction code not passing validation I felt a little like shooting in the dark on this task since we haven't been given an example of code to extract a file from a Zip yet. But I assumed the copyData method would be used for that. I googled a few options and it seemed they used code similar to copyData with a few other bits. I tried to
24.04.2022
604views
5comments
0
Mike S
Level 28
Saint Louis
Question about the task Racer (Part 3/28)
Games, Level 0, Lesson 5
Under discussion
1,000 Exceptions, but Code Displays Fine I felt like I had all of the steps worked out and the code made sense to me. But when I ran and verified... it blew up in my face. A lot of exceptions and red font on the console, not a single green check, and not even a coherent-looking grid. Any hints to help me advance on this one?
04.01.2023
289views
5comments
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