Page 18 | CodeGym online Java course - Help

Justin Smith
Level 41
Greenfield, USA
Question about the task Creating a class from an XML string
Java Collections, Level 3, Lesson 10
Under discussion
return Shop.class?Struggled with this for a bit. My impression is that we're supposed to write code for the getClassName method that does the work of figuring out what the root class name is in the XML data. But I was stumped because the main method calls getClassName before any unmarshalling work is done, so the XML
10/13/22
656views
1comment
1
matemate123
Level 50
Kraków
Question about the task Unique substrings
Java Collections, Level 9, Lesson 9
Resolved
I don't see where is mistake I think my logic is good but I suppose something I don't see is wrong
11/22/23
520views
8comments
0
KxngChrxs
Level 11
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
11/20/23
263views
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?
12/10/19
1258views
4comments
0
FelixUjo
Level 35
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.
11/18/23
422views
4comments
0
catalin1989
Level 37
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
11/19/23
290views
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 😣
9/14/20
815views
3comments
1
catalin1989
Level 37
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
11/17/23
402views
3comments
0
FelixUjo
Level 35
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.
11/13/23
292views
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?)
3/7/23
389views
1comment
0
christopher freund
Level 8
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
11/12/23
314views
2comments
0
catalin1989
Level 37
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.
11/13/23
601views
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
5/27/21
907views
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.
9/29/20
593views
3comments
1
Jaime Padilla
Level 41
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
11/11/23
248views
0comments
0
FelixUjo
Level 35
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
11/5/23
299views
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!
11/11/23
278views
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.
5/10/22
945views
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??
1/8/23
490views
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
12/24/19
1823views
3comments
1
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.
10/10/20
712views
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":
5/14/19
1818views
3comments
2
Jesú
Level 14
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
11/7/23
658views
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
5/31/20
792views
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
4/24/22
997views
5comments
0
sagar thakur
Level 6
CodeGym University in India
Question about the task Filled rectangle
Java Syntax, Level 4, Lesson 3
Under discussion
This is a perfectly written code and the output is correct when i use intelliJ still here it shows my answer is wrong public static void main(String[] args) { int n = 0; while (n < 5) { int m = 0; while (m < 10) { System.out.print("Q"); m++; } System.out.println(); n++;
3/8/23
404views
1comment
0
Attila Ágoston
Level 5
Question about the task Combining arrays
Java Syntax, Level 5, Lesson 1
Under discussion
I need help.I wrote this code and it work as this task insists, but it's not accept as a solution. What's wrong whit my code? resultArray = (firstArray); for (int i = 0; i < resultArray.length; i++) { System.out.print(resultArray[i] + ", "); } resultArray = (secondArray)
9/7/23
309views
3comments
0
Harshit Garg
Level 34
Chandigarh
Question about the task Next month, please
Java Syntax, Level 14, Lesson 6
Resolved
pls see this .... I think the requirements are fulfilled, it doesn't understand this.
11/5/23
257views
1comment
0
Harshit Garg
Level 34
Chandigarh
Question about the task From if to switch
Java Syntax, Level 14, Lesson 7
Resolved
wheres the error pls tell
11/5/23
285views
1comment
0
matemate123
Level 50
Kraków
Question about the task Log parser (part 1)
Java Collections, Level 7, Lesson 15
Resolved
My results seems correct but Validator don't like it.I need some different eyes to look into my code. I don't know where is problem. I think is not bad but still almost all red. Maybe I don't get some condition? Please help!
11/4/23
302views
2comments
0

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