Page 45 | CodeGym online Java course - Help

michal9696
Level 1
Poland
Question about the task Memory defragmentation
Java Syntax, Level 10, Lesson 5
Archived
Some hint Hi, I have a problem with this exercise. Could you give me some hint how to solve this?
8/16/22
716views
4comments
0
Raakesh Singh chauhan
Level 3
Question about the task Currency exchange
Java Syntax, Level 3, Lesson 3
Under discussion
please help me out what mistake i am doing in this code
9/11/18
2748views
9comments
1
Justin Smith
Level 41
Greenfield, USA
Question about the task Build a tree (part 4)
Java Collections, Level 1, Lesson 15
Resolved
The intended design of this tree is not clear from the instructions In the example graphic, I understand that each Entry has a right and left "child" Entry, or at least the potential to have them. I also understand that if you remove an Entry (such as in the example list.remove("3")) it removes all the child entries as well. But I do not understand the placement of
8/16/22
765views
3comments
0
Jakhongir Ruziev
Level 23
Tashkent
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Resolved
Struggling with isGreaterThan(String a, String b) method. Did not quite get how it works. Can someone please clarify on that. I would really appreciate it🙏
4/11/20
1192views
8comments
0
Whisper
Level 31
Question about the task From a data stream to a list
Java Syntax, Level 19, Lesson 7
Under discussion
Why Collector keyword is ignored?When you convert a Stream Object into a List Object, Why numbers .filter(number -> number > 0) .collect(Collector.toList()); does not work?
8/15/22
704views
4comments
0
Steveo
Level 14
London
Question about the task Chess board
Java Syntax, Level 6, Lesson 5
Resolved
array must be filled ???My code runs and i get the expected output but i cant get the 3rd of 4 conditions to be met to complete the task and i have no idea what im missing. any help appreciated
8/5/22
656views
2comments
0
Alex Tor
Level 31
Question about the task Let's work with StringBuilder
Java Syntax, Level 10, Lesson 7
Resolved
Don't understand what output is being expected here.Hi team, This code gives the following output: Learn, learn, and learn again! A rolling stone gathers no moss Learn, learn, an, in! //Learn, learn, and learn again! - first parameter //A rolling stone gathers no moss - second parameter but the judge keeps talking to me: Be sure that the a
8/11/22
494views
2comments
0
Alex Tor
Level 31
Question about the task Path update
Java Syntax, Level 10, Lesson 5
Resolved
I've been trying at least two different ways - none of them seem to be worked.Hi guys, pls, gimme a hint, as it's most likely I didn't get what kind of implementation they want. Thank you!
8/10/22
440views
2comments
0
sumit singh
Level 5
Question about the task Filled rectangle
Java Syntax, Level 4, Lesson 3
Under discussion
program ran for too long?i am trying to complete a task but it is showing that the program ran for too long. what should i do?
8/9/22
473views
2comments
0
michal9696
Level 1
Poland
Question about the task Increments
Java Syntax, Level 8, Lesson 3
Resolved
Hi, I don't know if I good understand Hi, I don't know if I good understand that: a = 3 b = ++a + (a-- * ++a) 1. first a-- from parentheses: b = 3 + (2 * 3) 2. second ++a from parentheses: b = 3 [3-1(postfix a--)+1(prefix ++a)] + (3 [2+1(prefix ++a)] * 3 [3-1(postfix a--)+1(prefix ++a)]) 3. third ++a outside parentheses: b = 4 [3+1(pre
8/9/22
564views
3comments
0
Alex Tor
Level 31
Question about the task Binary converter
Java Syntax, Level 10, Lesson 2
Resolved
What's wrong with toBinary(int)Hello everyone, There is something wrong with the method toBinary(int) pls, gimme a hint. Thank you in advance!
8/8/22
469views
3comments
0
Anitamalina
Level 18
København
Question about the task GCD
Java Core, Level 4, Lesson 8
Resolved
Inifinite wild loop error I get that message when evaluating my code on codeGym, but I can't seem to find it in my IDE. It gives me the correct result. But maybe there is a test case I'm unaware of?
8/8/22
646views
1comment
0
Paul
Level 24
Vienna
Question about the task Mastering the static block
Java Core, Level 5, Lesson 12
Under discussion
Failing to create a plane object Hi I don't understand what is going wrong in my code. It seems the plane object can't be created. Thanks for any hints
8/7/22
594views
4comments
0
hidden #10994753
Level 46
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
The code works correctly, but still rejected because of the last requirement !Hi everyone, The code seems working correctly, I got the same expected results for the two examples, but the code is still rejected by the validator, can any one please tell me the reason behind that ? thanks a lot. Recommendation from the mentor Be sure that the lines list has the SAME label with
8/6/22
506views
2comments
0
Dawn( #11020889)
Level 37
Toronto
Question about the task Binary to hexadecimal converter
Java Syntax, Level 9, Lesson 2
Under discussion
i totally have no idea hexToBinary method run successfully and also i test some other number, but failed the task test. why? please help me!
8/5/22
475views
1comment
0
Anitamalina
Level 18
København
Question about the task User, loser, coder and programmer
Java Core, Level 4, Lesson 8
Under discussion
I print correct, I think - but still don't pass :S I have made static methods in Person.java.. otherwise, my method doWork in Solution-class wouldn't work.. e.g. Person.User.live(); But I can't pass the last requirements?.. Anyone who can tell what I am doing wrong?
8/4/22
676views
8comments
0
Anitamalina
Level 18
København
Question about the task Wine tasting
Java Core, Level 4, Lesson 8
Resolved
I can't pass the requirements.. ?I changed the return type of the method: public static SparklingWine getSparklingWine() to SparklingWine instead of Wine. But neither works.. so I don't understand what to do different?
8/4/22
458views
1comment
0
Anitamalina
Level 18
København
Question about the task Minesweeper (Part 13/16)
Games, Level 0, Lesson 0
Under discussion
Can't pass two requirements I can't pass the last requirements. Maybe it's the sentence "and the last revealed cell is not a mine" - that I don't do right ?.. Anyone knows?
8/3/22
434views
2comments
0
Jaime Padilla
Level 20
Chandler
Question about the task Chasing after types
Java Syntax, Level 13, Lesson 7
Under discussion
Not validating It seems to work perfectly. Not sure why the last condition is not passing.
7/30/22
559views
2comments
0
Dawn( #11020889)
Level 37
Toronto
Question about the task Binary converter
Java Syntax, Level 9, Lesson 2
Under discussion
what's the problem?after running my code i got the correct result, but the task failed. why? anyone can help? Please!
7/31/22
472views
3comments
0
Abhishek Rangari
Level 22
Nagpur
Question about the task Factory method pattern
Java Core, Level 6, Lesson 13
Resolved
Can someone help me in this task Last condition is not satisfying
12/13/18
2964views
14comments
0
Денис Чистяков
Level 30
Poland
Question about the task Cat carnage (2)
Java Syntax, Level 10, Lesson 2
Resolved
Why this solution don't pass validator? Why this solution don't pass validator?
8/1/22
452views
2comments
0
LuisRC
Level 39
Gijón
Question about the task Binary converter
Java Syntax, Level 9, Lesson 2
Under discussion
What's my mistake?Why I'm not able to pass the vaildation? This is the comment from my mentor but I'm not able to see my mistake. Be sure that the toDecimal(String) method returns 0 if it receives an empty string or null as input. Some help, please?
1/13/22
1123views
5comments
0
Glenn Akens
Level 2
Riverview
Question about the task Minimum of three numbers
Java Syntax, Level 2, Lesson 8
Under discussion
not getting the correct c min value and code seems to work without { } brackets as well.I just need a little help understanding this and if I should be writing it any differently. I see other examples with " { } " brackets around the inside of the if statements and I see double boolean && that im a little unsure of how to use as well.
8/20/21
1107views
3comments
0
Alex Tor
Level 31
Question about the task Remove duplicate strings
Java Syntax, Level 6, Lesson 4
Resolved
Input \ Output are corresponding to the conditions, but the solution won't validate.Hi guys, Please, gimme a hint. Thank you in advance!
7/20/22
590views
6comments
1
Wojciech Dąbrowski
Level 1
Warsaw
Question about the task Advanced file search
Java Collections, Level 1, Lesson 2
Under discussion
Criteria didn't passet at the same time.Can you help?
12/1/20
699views
2comments
0
Alex Tor
Level 31
Question about the task Correct order
Java Syntax, Level 7, Lesson 2
Under discussion
The task was solved, but may it be written in a better way?Hi guys, I solved this task, but I don't like that I had to create a new int[] nums that needed to be populated with the reversed integers from the originating array, and I was wondering if there is another, better way to solve it without being necessary creating a new temporary int[] ? Thank you in
7/27/22
766views
5comments
0
Albert ENG
Level 6
Question about the task Positive and negative numbers
Java Syntax, Level 3, Lesson 10
Under discussion
whu my code doesnt work in itneleIDE but it works in Eclipse
7/27/22
429views
1comment
0
Anitamalina
Level 18
København
Question about the task Minesweeper (Part 12/16)
Games, Level 0, Lesson 0
Under discussion
I can't solve this - and I don't understand what is wrong with my code..Can anyone help?
7/27/22
462views
2comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Bit operations
Java Multithreading, Level 10, Lesson 6
Resolved
Works flawlessly, follows listed rules perfectly, but won't pass the "allowed operators" criteria I should start by mentioning that I know Wei Cui posted something that will pass in another person's question, but if I just copy and paste that I won't be learning why my own code is not validating. I can't seem to find any of the listed requirements I'm not in line with, and it works for all value
7/23/22
536views
8comments
0

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