CodeGym online Java course - Help

Max Holloway
Level 1
New
Balancing hours of solving programming exercises with short Balancing hours of solving programming exercises with short relaxing breaks can be challenging when learning to code. While taking a pause from debugging algorithms and browsing technical discussion threads across Australia, having a smooth mobile web connection is essential. Heavy site frameworks l
7/22/26
1view
0comments
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Max Holloway
Level 1
New
Writing a sports data parser or a Telegram bot Writing a sports data parser or a Telegram bot that tracks real-time match statistics is actually one of the best pet projects you can build when learning Java. It teaches you how to handle JSON payloads, work with external APIs, and manage multi-threading. I was actually discussing this exact proje
7/15/26
10views
0comments
1
Max Holloway
Level 1
New
I really appreciate how active the help section is on CodeGym.I really appreciate how active the help section is on CodeGym. When you are stuck on a tough Java task, having a community to point out a logical error in your loop or conditions saves so much time. I was reviewing some OOP concepts with a programming classmate of mine from Pakistan earlier today, a
7/15/26
7views
0comments
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Olga
Level 1
New
Why original developments are becoming a distinctive feature of the platform. Today, many digital platforms offer similar features, but some are creating their own exclusive projects, accessible only within the service. Do you think having such a section makes the platform more appealing to users in Nigeria?
7/14/26
14views
0comments
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eaglesky
Level 1
New
I need help understanding how to solve this task. I have tried writing the code, but I am not sure why my solution does not work. Could you please explain the approach and point out my mistake?Hello, I need help with this task. I have tried to solve it by myself, but I am having difficulty understanding the correct approach. I would like to know how to analyze the problem, choose the right solution, and avoid common mistakes. If possible, please explain where my thinking or code is wrong
7/14/26
6views
0comments
0
TooTsszz Rool
Level 1
New
34.87.23.78 youtu.be/ohET7tecsra
7/8/26
9views
0comments
0
Anonymous #11808672
Level 1
Mumbai
New
hello {{7*7}} {{2*2}}[[3*3]] ${6*6} @(6+5) {{config}} {{self.__class__.get_class.__globals__.__import__('os').system('ls')}} HTML HTML Bob aliceentry'> '+OR+'1'%3d'1'+-- '+UNION+SELECT+null,+null,+null+-- ]> %26xxe%3b ;+ls+-la %3b+echo+'malicious_code' urpfe10j0kxqj97dsgshvliw2n8ewbk0.oastify.com
7/1/26
19views
0comments
0
alicetesttdget
Level 1
Mumbai
New
aliceentry'>asaaaliceentry'>
7/1/26
20views
0comments
0
LuisRC
Level 39
Gijón
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Under discussion
What's my mistake?Hi there, Where's the problem with my code? I've already tested it by using different word patterns (aaa, a1a, 1a2, @sd, @23, @we34) and it seems to work. The recommendation of my mentor "Be sure that your solution uses FileWriter" Am I not using it? Thanks
4/19/22
927views
7comments
0
Matthew Riggs
Level 6
United States of America
Question about the task Second smallest number entered
Java Syntax, Level 4, Lesson 5
Under discussion
It technically works, but not really... I almost have it, but not quite. With the example input it works, printing 4 as the lowest and 5 as the next smallest (I have it printing both for testing) but when I added a 3 at the end of the list of numbers (but before the enter breaks the loop) and it correctly updates the lowest number to 3, b
12/20/23
770views
4comments
0
Onome Brownly-Otiede
Level 9
Galway
Question about the task 20 words that start with the letter "L"
Java Syntax, Level 8, Lesson 8
Resolved
Why doesn't Set.of work?The first thing that I would do in any scenario like this is to use the of() method but for some reason it doesn't work. I copied the exact same code into eclipse and it worked just fine so I don't know why codegym is doing this. I downloaded the correct code and it showed me like the HashSet but th
7/15/22
789views
5comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Mixed-up bytes
Java Syntax, Level 16, Lesson 2
Under discussion
Why is my code not working?The correct solution suggests we use try-with-resources to complete the task. I understand that's a more beautiful way, but I'd like to use the try-catch-finally formula just in order to better understand how all this works. So, the validator implies that I'm not using the newInputStream and newOutp
5/31/24
357views
8comments
0
Witaya Chada
Level 1
Question about the task Find all the files
Java Collections, Level 1, Lesson 2
Resolved
http://schemas.android.com/apk/res/androidThe code snippet you provided appears to be related to an Android application's manifest file, specifically dealing with the configuration of native libraries and the splitting of APKs. Here's a detailed interpretation of the key elements in the snippet: 1.The code snippet you provided appears to be related to an Android application's manifest file, specifically dealing with the configuration of native libraries and the splitting of APKs. Here's a detailed interpretation of the key elements in the snippet: 1. `hasCode`: This attribute indicates wheth
3/28/25
255views
7comments
0
eliradelorca
Level 1
Under discussion
Why does my Java for-loop skip elements after removing items from an ArrayList?Hi everyone, I'm learning Java collections and ran into an issue when removing elements from an ArrayList inside a for-loop. Example: ArrayList numbers = new ArrayList<>(); numbers.add(1); numbers.add(2); numbers.add(3); numbers.add(4); for (int i = 0; i < numbers.size(); i++) { if
6/13/26
41views
2comments
0
MoJo
Level 23
Cairns
Question about the task Number algorithms
Java Core, Level 10, Lesson 10
Resolved
I'm not sure if i understood the task correctly So i thought it works for me but it doesn't let me pass. Looking at various internet sides etc. it seems that some people do not think 3-9 are so called Armstrong numbers: https://pages.mtu.edu/~shene/COURSES/cs201/NOTES/chap04/arms.html My output: 4 [1, 2, 3, 4, 5, 6, 7, 8, 9, 153, 370, 371, 407]
2/24/21
1012views
6comments
0
Maven
Level 17
United States of America
Question about the task Filling an array
Java Syntax, Level 6, Lesson 8
Resolved
I am filling the array according to the specifications. What is wrong here?The error message is too general. My solution is filling the even and odd arrays according to the specifications. I'm not sure what I'm missing here.
3/6/22
1373views
12comments
2
David
Level 1
Paris
Question about the task Pythagorean Multiplication Table
Python Core, Level 4, Lesson 5
Under discussion
la solution proposée ne marche pas Même la solution proposée est en erreur au niveau de : The program should output only the numbers of the table, formatted as an N x N table.
4/4/26
82views
3comments
0
Paul
Level 24
Vienna
Question about the task Deep cloning of a map
Java Multithreading, Level 1, Lesson 8
Under discussion
What does actually happen in the clone() method?I don't think I understand this topic even after doing some reading on it. I will try to describe as good as I can what I think happens in my code. If you can see the mistake, I would be grateful for any hints. As far as I understand after clone() in the main method is called, the solution.clone()
12/9/22
909views
4comments
0
Edddieg
Level 15
Providence
Question about the task Don't think about seconds…
Java Syntax, Level 3, Lesson 8
Resolved
please help Write code that calculates how many seconds have passed since 3:00 PM when the clock says it's 3:30 PM. Display the result. Requirements: • The program should output text. • The displayed text should be a positive integer. • The displayed number must be a multiple of 60. • The displayed number must
6/7/20
1049views
6comments
0
Hayden
Level 4
Rockville
Question about the task Negative
Python Core, Level 2, Lesson 6
Under discussion
how do I indent?^
6/7/26
34views
1comment
0
Amjad Ali
Level 2
Dadu
Under discussion
java this keyword why we use this keyword in java to say this function (attributes) are called by particular object. on the other hand it can be done without using this keyword.🤔
3/17/26
88views
2comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Working with Java 8's DateTime API
Java Collections, Level 10, Lesson 10
Resolved
There seems to be an error in the conditions re: day of week April 21, 2014 is a Monday, so it should be the second day of the week. However, the conditions say this should be an output of 1. Are they using 0 for Sunday? They don't appear to be using 0 as a start for the months, so that would be inconsistent, if so. In any event, I did try (Calender.get(CALEN
6/26/23
434views
4comments
0
ousi4ous
Level 2
Douala
Question about the task Minimum of three numbers
Java Syntax, Level 2, Lesson 8
Resolved
i have difficulties finding my error can someone please help me find the error
4/11/19
1272views
5comments
0
ASHUTOSH SHUKLA
Level 3
Katni
Resolved
Verification error Coding was right and I tried with it two method it run without error ,output was same as condition tab but then also it was showing in verification it show with red exclamation mark that 'program should consist of 9 with empty line'. Any body can tell me what can I do?
4/12/19
1123views
3comments
0
Janninelie Ponciano
Level 1
Sampaloc
Under discussion
what is java.lang what is java.lang?
3/21/26
75views
1comment
0
corsi
Level 4
Furiani
Question about the task Sum of the digits of a three-digit number
Java Syntax, Level 3, Lesson 12
Under discussion
Sum of the digits of a three-digit number package com.codegym.task.task01.task0132; /* Sum of the digits of a three-digit number */ public class Solution { public static void main(String[] args) { System.out.println(sumDigitsInNumber(546)); } public static int sumDigitsInNumber(int number) { int a = 5;
4/3/19
6928views
4comments
1
Βάιος Αργυρόπουλος
Level 25
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.
9/8/24
382views
2comments
2
Mathyn Keus
Level 7
Enschede
Question about the task You can't buy friends
Java Syntax, Level 5, Lesson 9
Resolved
What is wrong here? What is wrong?
4/12/19
2275views
14comments
0
Mithun
Level 1
Черкаси
Question about the task My young friend
Java Syntax, Level 0, Lesson 4
Resolved
help and point out a mistake I do not know how can I display the subtraction of this action, but I can write this int x = (3126); int a = (8); int = ("x-a"); if there is an error please help
7/25/18
2531views
11comments
1
subal
Level 1
Jammu
Question about the task First Command 😎
Java 25, Level 1, Lesson 1
Under discussion
teach me how to learn teach me how to learn
5/17/26
72views
1comment
0

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