Page 6 | CodeGym online Java course - Help

Arkoo
Level 38
Germany
Question about the task Prices
Java Core, Level 8, Lesson 11
Under discussion
I can't understand why it doesn't pass validation Only the first 3 requirements are validated, not even the last about closing streams
23.09.2024
108views
1comment
0
Βάιος Αργυρόπουλος
Level 24
Question about the task Set of cats
Java Syntax, Level 14, Lesson 9
Under discussion
Can't understand whats wrong....It seems that my code does fullfil the requirements but i cannot pass the last requirement. when my code runs it shows that exactly two Cat objects are in the Set. This means that an object is being removed, but validation test says otherwise. Anyone help ?
21.09.2024
120views
1comment
0
GOUTHAM B J
Level 1
New
changing Java learning pattern How to change Java learning patterns from story to minimum material in this Codegym App
20.09.2024
100views
0comments
0
Augusto Ghio
Level 7
Question about the task Comparing strings by reference
Java Syntax, Level 3, Lesson 9
Under discussion
no question. a critique i do it with sout(strings.equals(string2) ? same : different) it works great and fine. not need of if-else structure
03.09.2024
115views
2comments
0
Evgeniia Shabaeva
Level 41
Budapest
Question about the task Request parser
Java Core, Level 5, Lesson 12
Resolved
The program displays what it needs but not validated. What am I doing wrong?It's probably time to post a question about this task. I wrote two variants of this code. The first one creates two lists, one with keys and one with values. You can see that version in comments. The second variant uses a HashMap instead (which, obviously, has keys and values). That is the main co
23.07.2024
165views
2comments
0
Evgeniia Shabaeva
Level 41
Budapest
Question about the task Prices
Java Core, Level 8, Lesson 11
Resolved
Help me please with n3 & n4 I've written this code, but I can't pass the 3d and 4th requirements, i.e. I need to make sure the product list remains unchanged when you run the program without arguments, and when the program is run with the arguments "-c productName price quantity", a new line with the corresponding product shou
03.09.2024
157views
8comments
0
Βάιος Αργυρόπουλος
Level 24
Question about the task But that's how I want it
Java Syntax, Level 12, Lesson 7
Resolved
First question that i got stuck....Can anyone plz give me a hint of how can i get this problem solved ?? To symmarise my take on the problem : - I think that my logic on if - if-else statements are right. - I am not sure about the conversions and if the exercise imply something i am missing.
08.09.2024
130views
1comment
0
Evgeniia Shabaeva
Level 41
Budapest
Question about the task ABCs
Java Core, Level 8, Lesson 11
Resolved
Why not this simple way?The validator says I'm not counting lowercase letters while I think I am. Or am using the regex the wrong way in line 23? I tried eualsIgnoreCase(), it didn't work either. I've also tried some more complicated code, in which I used StringBuilder and Treeset, see below). In this variant the validato
16.08.2024
180views
4comments
0
slowly
Level 8
Mörfelden-walldorf
Question about the task Somewhere in the middle
Java Syntax, Level 4, Lesson 10
Under discussion
Solution not accepted Why is my solution not accepted?
25.08.2024
134views
1comment
0
nealgoogs
Level 21
Eliot
Under discussion
Why cant I access this page?https://codegym.cc/search?query=math when i search for math, to learn about java methods for the math class. I cant access the lesson?
24.08.2024
107views
1comment
0
Martin G
Level 6
Under discussion
Can anyone help me understand the difference?Hi there I'm completely new to programming and just started this course yesterday! All was going well until I reached the New Java Syntax, Level 2, Lesson 8. For a bit of background,. in the previous lesson(Level 2, Lesson 7) I was thought of the Scanner command and its implications (Which i feel li
24.08.2024
113views
1comment
0
Timothy Cutlip
Level 4
Marietta
Question about the task Implement the print method
Java Syntax, Level 2, Lesson 1
Resolved
How is my code wrong?I get the write output on screen. i called the function twice through a loop in the main function and a separate loop in the print function to get a total of 4 outputs all on separate lines but some how is still wrong. can anyone explain?
11.02.2019
2459views
6comments
1
X SS
Level 25
Question about the task Bridges
Java Core, Level 4, Lesson 8
Under discussion
Why are static statements necessary? If I don't put them it gives a error public class Solution { public static void main(String[] args) { println(new WaterBridge()); println(new SuspensionBridge()); } // Add println method here interface Bridge{ int getCarsCount(); } static class WaterBridge implements Bridge{ pub
23.08.2024
132views
1comment
0
DolciNShortE
Level 3
Fort Worth
Question about the task This age doesn't work for me…
Java Syntax, Level 3, Lesson 4
Under discussion
Why is the person object created before the Person class???I am having a very difficult time understanding this task. I've worked on it for about 3 days now and I'm still a little confused. I think I understand the concept of using the "this" keyword, though I'm still a little fuzzy on it. It wasn't explained well at all. But what I'm really confused ab
11.10.2021
903views
2comments
2
Anonymous #11553756
Level 1
Under discussion
generate AI Robot how to add AI trading Robot
17.08.2024
116views
1comment
0
umesh vadachhak
Level 30
Bangalore
Question about the task Archiver (part 11)
Java Multithreading, Level 7, Lesson 15
Resolved
Not able to pass the last two conditions The code is correct and are according to the requirment but not passing the conditions
09.08.2024
129views
2comments
0
GOVARDHANA GOWDA
Level 2
Durg
Question about the task Kind words for the teacher
Java Syntax, Level 1, Lesson 4
Under discussion
finding enter option I write a code but how can I find a enter button
19.07.2024
155views
2comments
0
hidden #10719523
Level 4
Under discussion
How do i logout of my account?? This should be something easy to do...
17.08.2024
107views
1comment
0
hidden #10523504
Level 4
Question about the task Price of apples
Java Syntax, Level 4, Lesson 1
Under discussion
Why does Apple.applePrice = applePrice + applePrice; equal to 200 but Apple.applePrice + applePrice equals 150?Struggling to get this..... Why does "Apple.applePrice = applePrice + applePrice" equal to 200 but "Apple.applePrice + applePrice" equals 150?
10.09.2019
2343views
8comments
0
Douglas
Level 4
Kano
Question about the task Declare variables
Java Syntax, Level 0, Lesson 4
Resolved
Declaring Integer as age String name = ("name"); int age = ("age"); String city = ("city"); How can I declare the integer as age correctly?
15.03.2019
4524views
5comments
0
123 123
Level 1
Question about the task Snake (Part 1/20)
Games, Level 0, Lesson 1
Under discussion
How do I change the language????
01.08.2024
130views
1comment
0
AG09Mex
Level 28
Question about the task John Johnson
Java Core, Level 9, Lesson 11
Under discussion
Seems to be working? Not really sure why it is not validating. Whenever I test my code it seems like it does what it is supposed to. I'm not sure what I'm missing, any help would be nice.
14.08.2024
113views
1comment
0
Evgeniia Shabaeva
Level 41
Budapest
Question about the task Debug everything under the sun
Java Core, Level 6, Lesson 13
Resolved
Question about UncaughtExceptionHandler Well, I googled some theoretical info about UncaughtExceptionHandler and even completed the task successfully... As all it required was to add one line:). But I still don't think I really understood what I did. I understand it's an interface for dealing with uncaught exceptions... But we've lived wi
07.08.2024
123views
4comments
0
Evgeniia Shabaeva
Level 41
Budapest
Question about the task The early bird gets the worm
Java Core, Level 6, Lesson 13
Resolved
Why is the 1st requirement not met?I've written this code, it meets all the requirements except the very first one: The run method must run until the thread is terminated (!IsInterrupted). I thought the following while-loop in the run() method was serving that purpose: public void run() { while (!isInterrupted()) {..
31.07.2024
154views
5comments
0
Zach
Level 22
Fort Collins
Question about the task Stopwatch
Java Core, Level 6, Lesson 7
Under discussion
Whats wrong with this code. private void doStep() throws InterruptedException { stepNumber++; // write your code here if (owner.speed == 2) { Thread.sleep(500); } else if (owner.speed == 4) { Thread.sl
01.04.2021
488views
2comments
0
Anonymous #11549069
Level 5
Katowice
Under discussion
a question about subscribtion mode Hello i want to try codegym in java learning for 2 months .. - subscribtion to see all what you offer , is that good or you just make it nice at begining and in later levels its not fully made ? what exactly give me this subscription - the offer i see , that is : https://codegym.cc/sale "Special d
03.08.2024
123views
0comments
0
preshgerman3
Level 14
Under discussion
how to implement games how to implement games
02.08.2024
100views
0comments
0
Павел Артеменко
Level 41
Krasnodar
Question about the task Chat (part 9)
Java Multithreading, Level 6, Lesson 15
Resolved
What's wrong with notifyUsers()? private void notifyUsers(Connection connection, String userName) throws IOException { Message message = new Message(MessageType.USER_ADDED, "User, called " + userName + " has been added."); for (Map.Entry connectionEntry : connectionMap.entrySet()) { if (!connectionEntry.getKey().equals
11.05.2019
2406views
7comments
2
Anonymous #11533978
Level 26
Bilbao
Question about the task GCD
Java Core, Level 4, Lesson 8
Resolved
what is wrong? It gives the correct result and yet does not meet the criteria According to the revision, the code is not meeting the task requeriments. The result I get with the inputs 24 and 42 is correct (6) but somehow it does not pass the test. What is wrong? public class Solution { public static void main(String[] args) throws Exception { BufferedReader irak
01.08.2024
138views
3comments
0
yuvraj bhatti
Level 1
Mumbai
Under discussion
car parking barrier make a barrier in car parking that lifts up when car is nearer and down when car is not nearer
31.07.2024
103views
0comments
0

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