Page 125 | CodeGym online Java course - Help

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(); }
7/31/20
1251views
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 :)
10/26/20
602views
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 :)
10/27/20
924views
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 🤔
10/26/20
578views
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
3/26/20
1471views
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?
9/30/20
642views
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.
4/7/19
2351views
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...
10/26/20
619views
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(
10/21/20
692views
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?
10/21/20
957views
3comments
0
Fabian Andiel
Level 9
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
10/26/20
523views
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?
10/25/20
844views
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?
7/2/19
1537views
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
6/5/19
1806views
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.
6/23/20
701views
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
10/23/20
1402views
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
10/22/20
972views
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); } }
10/25/20
618views
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
10/25/20
851views
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 ?
6/21/20
780views
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? :-)
10/25/20
590views
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 ??
10/25/20
686views
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.
4/1/19
2962views
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!
6/25/20
843views
4comments
0
towelie8
Level 15
Darmstadt
Question about the task Climb, fly, and run
Java Core, Level 2, Lesson 12
Under discussion
I need help help me plz.
8/28/20
690views
4comments
0
Timothy Chan
Level 11
Hong Kong
Question about the task Minimum of N numbers
Java Syntax, Level 8, Lesson 11
Resolved
An Issue about the Answer The question was solved but there is one issue I would like to ask. For public static List getIntegerList() throws IOException {, I created an list with the name list. but then for public static int getMinimum(List array) { I tried to write for (int i=0;i package com.codegym.task.task08.task0822;
10/24/20
658views
2comments
0
yehuda b
Level 23
Beersheba
Question about the task Introducing tags
Java Core, Level 9, Lesson 11
Resolved
5th condition doesn't validate I tried countless times, looked a few times in the help section, tested it with a few cases, and still it won't validate. The code handles even nested within nested within nested tags (x3). Does anyone have any suggestions or test cases I can try? Thank you very much!
10/20/20
804views
5comments
0
yz
Level 37
Jakarta
Question about the task Between tabs
Java Multithreading, Level 2, Lesson 5
Resolved
any ideas?last one
12/18/19
1488views
4comments
0
Jhoal
Level 22
Berlín
Question about the task Code doesn't fix itself
Java Core, Level 3, Lesson 4
Resolved
help :)I know it should be something easy and stupid but I've tried different things and nothing works. Nothing more is coming to my mind. Can anyone say me how it is the basic path to the solution?
10/24/20
813views
3comments
0
Bruno
Level 6
Sydney
Question about the task Closest to 10
Java Syntax, Level 4, Lesson 4
Under discussion
Can someone help me I dont know why Im getting the result wrong
10/25/20
676views
1comment
0

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