Page 121 | CodeGym online Java course - Help

Tony Roy
Level 41
Victorville
Question about the task Bug fix
Java Collections, Level 7, Lesson 6
Resolved
This "easy" task has me stumped!Doesn't iterate in expected order. My first thought was some version of LinkedList (as below). This would give the expected output if lines 22, 23 were exchanged. After that, I think I've looked at all the implementations of map. . . Thanks for any help!!!
03.06.2020
425views
1comment
2
Thomas Rogge
Level 12
Ronse
Question about the task Sum of the digits of a three-digit number
Java Syntax, Level 3, Lesson 12
Resolved
need help Hello, I implemented this solution in Intelij and it seems to work but i doesn't validate, some ideas? Thank you!
27.10.2020
502views
3comments
0
Noob_Coder
Level 22
Springfield
Question about the task One large array and two small ones
Java Syntax, Level 7, Lesson 4
Resolved
Code looks pretty good but the result is infinite repeated Don't know why it prints infnite second array.Code is beautiful
26.10.2020
588views
4comments
0
Michael Buckley
Level 4
Question about the task Minimum of three numbers
Java Syntax, Level 2, Lesson 8
Resolved
I don't fully understand where i am going wrong. Please can somone help me ?
29.09.2020
559views
5comments
0
Torben
Level 26
Halle (Saale)
Question about the task Most frequent bytes
Java Core, Level 8, Lesson 3
Under discussion
I don't know, can someone help me please When testing everything works
27.10.2020
412views
2comments
0
Maxine Hammett
Level 19
San Diego
Question about the task Player and Dancer
Java Core, Level 4, Lesson 4
Under discussion
Need explanation on why this code works I'm really confused over the code ((Player) person).play();. Why do we put Player person in parenthesis? if(person instanceof Player){ ((Player) person).play(); }else if(person instanceof Dancer){ ((Dancer) person).dance(); }
31.07.2020
1061views
6comments
3
Ryan Woodward
Level 3
Vancouver
Question about the task Minesweeper (Part 7/16)
Games, Level 0, Lesson 0
Under discussion
Runs in intellij, can't pass the verification though Does anyone see the error in my code. When I run this in IntelliJ it compiles and runs as it should. Thanks in advance :)
26.10.2020
451views
1comment
0
Jhoal
Level 22
Berlín
Question about the task Who called me?
Java Syntax, Level 9, Lesson 2
Resolved
why index 2?can someone explain me why do always we need to reference the index 2 in order to get the solution? Thanks :)
27.10.2020
755views
2comments
0
Adarsh bangera
Level 3
Question about the task Escaping characters
Java Syntax, Level 3, Lesson 6
Under discussion
what is wrong i am not getting what's wrong 🤔
26.10.2020
425views
2comments
0
Jonas
Level 41
Vilnius
Question about the task Circular iterator
Java Collections, Level 7, Lesson 4
Resolved
Please help with the remove method Don't get it
26.03.2020
1221views
1comment
2
Andrei
Level 26
Liverpool
Question about the task Work up a sweat!
Java Multithreading, Level 5, Lesson 7
Resolved
what about buffer?I have passed task, but I did nothing in run method, which has comment "// Process the buffer here". Dont we need to do something there?
30.09.2020
485views
1comment
0
Bill Wu
Level 29
Wellington
Question about the task Make a word chain
Java Multithreading, Level 2, Lesson 9
Resolved
Not sure about the requirement My code works fine with the example, but fails the verification. I'm wondering about this: All words passed to the getLine method must be included in the resulting string, if possible. if not possible (a word not matching the condition) how should I deal with it? I deleted those ones in the result.
07.04.2019
2067views
26comments
0
AlfredW
Level 23
Denver
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
Just Understanding what they are looking for, Is this it?I think this is what they are looking for. Obviously the result would be in the proper format...
26.10.2020
445views
3comments
0
Joshua Tyrrell
Level 7
Poughkeepsie
Question about the task Task about algorithms
Java Syntax, Level 5, Lesson 12
Under discussion
How do I display the max of entered numbers? That's the only condition I'm not passing.package com.codegym.task.task05.task0532; import java.io.*; /* Task about algorithms */ public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String a = reader.readLine(
21.10.2020
527views
2comments
0
lukesky
Level 11
Zurich
Question about the task Longest string
Java Syntax, Level 7, Lesson 6
Resolved
Code works but task not verified Question My code does exactly as requested. Any suggestions?
21.10.2020
811views
3comments
0
Fabian Andiel
Level 25
Vienna
Question about the task Find a substring
Java Multithreading, Level 2, Lesson 5
Under discussion
Don`t understand why the last condition won`t verify Please help me, i tried it with string.length()-1 and string.length() and I doesn`t work both ways. Greetings Fabian
26.10.2020
378views
1comment
0
Dmitri
Level 22
Seversk
Question about the task HashSet of plants
Java Syntax, Level 8, Lesson 3
Resolved
I initialized the set in slightly different way.I initialized the set in slightly different way. What is wrong with the validator?
25.10.2020
662views
3comments
0
Nicolas Huet
Level 41
Provins
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Under discussion
I don't see what to do next :[ it SEEMS to be working fine As said int the title, when I test with my tests files it seems to be working just fine but obviously I missed something but I don't see it... Can someone help me?
02.07.2019
1294views
2comments
0
Dmitrii
Level 38
Saint Petersburg
Question about the task Archiver (part 12)
Java Multithreading, Level 7, Lesson 15
Resolved
FileProperties Tried different ways to format numbers, either missing something or didn't find the right one
05.06.2019
1604views
3comments
0
Niklas Braun
Level 33
Freiburg
Question about the task Archiver (part 12)
Java Multithreading, Level 7, Lesson 15
Resolved
Is this a bug?I have tried to format it in so many different ways but it is still not working.
23.06.2020
559views
1comment
0
Andrei
Level 41
Question about the task Longest string
Java Syntax, Level 7, Lesson 6
Resolved
I get the " Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 5 out of bounds for length 5 " error - pls help? public class Solution { private static List strings; public static void main(String[] args) throws Exception { //write your code here strings = new ArrayList(); for (int i = 0; i < 5; i++){ BufferedReader reader = new BufferedReader(new InputStreamRe
23.10.2020
1195views
4comments
0
raulGLD
Level 8
Cluj-Napoca
Question about the task Task about algorithms
Java Syntax, Level 5, Lesson 12
Resolved
Output is correct, why is it not working?Hey, I am not getting the "The program should display the maximum of the N entered numbers." checked. Here is my code, the output is correct, I've tried with N being 0 or lower and I don't print anything, which is correct, then I've tested with N being 1 or whatever and added even 0 and I still get
22.10.2020
767views
3comments
0
Dinesh
Level 7
Delhi
Under discussion
I am not getting proper output class Mortgage{ public static void main(String[]args){ int rateOfInterest = 6; float monthlyRoi = (rateOfInterest/100)*12; System.out.print("Rate of Interest : "+ monthlyRoi); } }
25.10.2020
476views
3comments
0
Cristian
Level 13
Ploiesti
Question about the task Sum of the digits of a three-digit number
Java Syntax, Level 3, Lesson 12
Under discussion
The output is 0 instead of 15. Why? Thank you so much!public class Solution { public static void main(String[] args) { System.out.println(sumDigitsInNumber(546)); } public static int sumDigitsInNumber(int number) { //write your code here int sum = 0; while (number > 0) { sum = sum + number % 1
25.10.2020
686views
2comments
0
Goran
Level 41
Belgrade
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Resolved
Going mad here I am getting correct output but still not passing! And as hint I am getting this : Be sure that your solution uses FileWriter. Am I missing something ?
21.06.2020
636views
6comments
0
Anitamalina
Level 18
København
Question about the task Positive number
Java Syntax, Level 4, Lesson 7
Under discussion
hm.. can't figure it out I have tried several input and get right results.. can someone "see" what's wrong? :-)
25.10.2020
404views
2comments
0
Anitamalina
Level 18
København
Question about the task Describing numbers
Java Syntax, Level 4, Lesson 7
Archived
odd three digits number doesn't work :S I don't understand why this fails ??
25.10.2020
530views
2comments
0
Lex Medeiros
Level 18
San Jose
Question about the task Ascending numbers
Java Syntax, Level 6, Lesson 11
Resolved
The code works but it fails the test If someone could point me to what I am doing wrong I would appreciate it.
01.04.2019
2677views
3comments
1
Brad Reed
Level 19
Hartford
Question about the task Zombie cats, zombie dogs
Java Syntax, Level 6, Lesson 5
Under discussion
quick clarification Ok, so my code works and it is fine, but nothing displayed and it still passed. I did tell it to print the given lines, just nothing was out put onto the screen. I think I understand why but just looking for some clarifications if any of you all have some. Thanks in advance!
25.06.2020
646views
4comments
0
towelie8
Level 16
Darmstadt
Question about the task Climb, fly, and run
Java Core, Level 2, Lesson 12
Under discussion
I need help help me plz.
28.08.2020
546views
4comments
0

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