Page 90 | CodeGym online Java course - Help

Daniel Whyte
Level 17
Question about the task HashMap of Objects
Java Syntax, Level 8, Lesson 3
Under discussion
hasNext For printing it out I was thinking of using while(map. hasNext) { System.out.println("not sure about this bit") ; Would this be an option? What would I put to call it on the println part?
2/16/21
585views
1comment
0
Marcin
Level 8
Warsaw
Under discussion
Run button greyed out in IntelliJ IDEA Hello, I have IDEA connected with CodeGym. I'm able to do tasks and verify them but I can't run them while writing a code (just to check the console output). What I've done wrong?
6/16/19
2330views
3comments
0
Libby
Level 20
Question about the task Five winners
Java Syntax, Level 8, Lesson 11
Resolved
Why are requirements not met?my code gives me the right output, what's wrong?
2/15/21
630views
2comments
0
Rohana Bandara
Level 1
Colombo
Under discussion
How to convert sql Query to JPQL Query update newproject set pedate = date_add(psdate, interval duration day) where pid = newproject.pid; How to convert above shown Sql Query to JPQL Query?
2/15/21
828views
0comments
0
EugeneEmory
Level 8
San Antonio
Question about the task Sorting three numbers
Java Syntax, Level 4, Lesson 6
Resolved
Why doesn't the compiler verify it?So i've had this issue before. My code works just fine, regardless of what the numbers are it puts them in descending order. Yet, the compiler doesn't like it and won't verify that the code is in fact meeting that condition. Why is that?
2/14/21
729views
3comments
0
LucGar
Level 22
Bilbao
Question about the task Minimum byte
Java Core, Level 8, Lesson 3
Resolved
Why Long.MAX_VALUE Why, we have to use Long.MAX_VALUE?
4/29/20
1186views
3comments
0
Mina Nabil
Level 17
Sydney
Question about the task Let's hire a translator
Java Core, Level 3, Lesson 4
Under discussion
Hi, I was wondering why th class RussianTranslator has to be Static ? thanks.Hi, I was wondering why th class RussianTranslator has to be Static ? thanks.
2/12/21
536views
5comments
0
Opeyemi Olaleye
Level 5
Question about the task 18+
Java Syntax, Level 4, Lesson 6
Under discussion
Formating when reading data from the keyboard I wanted an experienced programmer's take on this. I noticed with some of the programs I have made, I fail because I add excess things like "Enter your name: " or "Enter your age: " in my code. I got into this habit from my previous experiences programming. The code is good, it just does not meet th
2/14/21
691views
1comment
0
Daniel Whyte
Level 17
Question about the task LinkedList and ArrayList
Java Syntax, Level 8, Lesson 6
Under discussion
Doesn't compile What's stopping my code from working?
2/14/21
840views
3comments
0
Vincenzo Seggio
Level 28
Question about the task Inverted words
Java Multithreading, Level 2, Lesson 9
Resolved
Do not understand why ...i don't pass testing. My program is working. Can you give me a hint please? Thx
2/13/21
544views
5comments
0
Prashant Vishwakarma
Level 12
Mumbai
Question about the task Family census
Java Syntax, Level 7, Lesson 12
Under discussion
what is wrong?help me!
9/19/20
600views
3comments
0
Noob_Coder
Level 22
Springfield
Question about the task Let's put together a rectangle
Java Syntax, Level 5, Lesson 7
Resolved
what's wrong with this code?Also i don't understand how it works completely
10/14/20
853views
9comments
0
Zach
Level 22
Fort Collins
Question about the task Even and odd digits
Java Syntax, Level 6, Lesson 5
Under discussion
ternary operator help I solved the puzzle but I had a piece of code that wasn't working. I ended up using an if-else statement butI wanted to use a ternary operator. But it wasn't working saying that (number % 2 == 0) is not a statement. for (int i = 0; i < intArray.size(); i++) { int number =
2/13/21
687views
1comment
0
Ahmed Elomari
Level 2
Philadelphia
Question about the task Don't feel like it? Do it anyway.
Java Syntax, Level 1, Lesson 8
Under discussion
by using for loop is much easier and fast ,just be more carefully for typo //write your code here int i; for( i=0 ;i< 16; i++)
2/13/21
528views
1comment
0
Ahmad Abbasi
Level 9
Anaheim
Question about the task Rule of the triangle
Java Syntax, Level 4, Lesson 4
Under discussion
Why Is My solution to Rule of the Triangle not working?see code
2/13/21
515views
1comment
0
Josephine
Level 2
Normal
Question about the task Minesweeper (Part 10/16)
Games, Level 0, Lesson 0
Resolved
why my 5th condition not passing?Someone please help why my 5th condition not passing?.Someone please help
12/15/20
610views
1comment
0
Volodymyr
Level 9
L'viv
Question about the task Even and odd digits
Java Syntax, Level 6, Lesson 5
Under discussion
I dont understand this line, Help.Hey, please explain to me, what this for - a = a / 10; What this line do in this task& Thank you.
2/12/21
634views
2comments
0
Przemek null
Level 8
Question about the task One large array and two small ones
Java Syntax, Level 7, Lesson 4
Under discussion
last condition not met the code does what was demanded but still can not pass. Some help would be really nice
2/12/21
509views
1comment
0
Lawson
Level 29
Lagos
Question about the task Making the right conclusion
Java Core, Level 10, Lesson 10
Under discussion
Help I cant meet task conditions
9/8/20
667views
1comment
2
hasith
Level 4
Colombo
Question about the task Multiplication table
Java Syntax, Level 3, Lesson 6
Resolved
What wrong with this code
6/7/19
1979views
5comments
0
Daniel Whyte
Level 17
Question about the task To the top of the list
Java Syntax, Level 7, Lesson 6
Under discussion
Initialising Looking at the requirements it asks that we immediately initialise the list. Is part of the below text actually initialising it? ArrayList list = new ArrayList<>();
2/2/21
480views
2comments
0
Maryem Vickers
Level 7
HT...
Question about the task R or L
Java Syntax, Level 7, Lesson 9
Under discussion
Help please!!!I am stuck. Can I have some help please?!?!?!
2/11/21
508views
1comment
0
Dmitri
Level 22
Seversk
Question about the task Buggy initializeIdAndName
Java Core, Level 3, Lesson 2
Under discussion
Why do I need to change return type?package com.codegym.task.task13.task1306; /* Buggy initializeIdAndName */ public class Solution { public static void main(String[] args) throws Exception { System.out.println(Matrix.NEO); System.out.println(Matrix.TRINITY); } static class Matrix { public sta
11/27/20
1089views
8comments
1
Maryem Vickers
Level 7
HT...
Question about the task R or L
Java Syntax, Level 7, Lesson 9
Resolved
One additional r"r" there!What happened?! I tried to get [r]id of allll "r"s and it did not work. Kore wa still there! Why?!
2/9/21
482views
2comments
0
Libby
Level 20
Question about the task Duplicating words
Java Syntax, Level 7, Lesson 9
Resolved
Can anyone help me My output looks like this: Alpha, Beta, gamma, gamma, gamma, beta, beta, alpha, alpha. How can I change it around?
2/11/21
675views
8comments
0
Carlos Marco Maza
Level 3
Under discussion
don't see task hello, when I start the level 2 I don't see any of task. All task are empty. I start the lessons in Spanish and now in English, the people says this is the problem, but i chanche the languaje several times and it's equals.
2/11/21
597views
0comments
0
Henrique
Level 41
São Paulo
Question about the task Your own FileWriter
Java Core, Level 9, Lesson 11
Under discussion
Could somebody explain to me this task? I really didn't understand anything about it...It seems that I'm the only one who didn't get this one, and this is very frustrating. ¯\_(ツ)_/¯ Anyway, I tried to follow the steps of the requirements, but I really don't understand what this task is about, or what I have to do. I looked at the only two other help topics and still didn't get it...
7/3/20
962views
13comments
0
Aakankasha Sharma
Level 19
Chandigarh
Question about the task Player and Dancer
Java Core, Level 4, Lesson 4
Resolved
instanceOf works, but person.getClass().getSimpleName() does not both are working fine to find what type of object has been instantiated but the first method is accepted whereas the second isn't: person instanceOf Dancer person.getClass().getSimpleName().equals("Dancer")
2/6/21
609views
1comment
0
Andrei
Level 41
Question about the task Buggy initializeIdAndName
Java Core, Level 3, Lesson 2
Resolved
What is the purpose of DBObject in front of the method in the interface? Why do I have to change from DBObject to User when implementing the interface in the class? Hello, so I don't understand what is the purpose of the name of the interface in front of the abstract method? Also, the second question: When implementing the interface in the User class, why do I have to change from DBObject to User followed by method name? Thank you.
11/26/20
783views
6comments
1
Seth Barker
Level 5
Eureka Springs
Question about the task Drawing a rectangle
Java Syntax, Level 4, Lesson 13
Under discussion
Right answer - missing #3 requirement I seem to be getting the right answer, but the #3 requirement is not correct. Any hints on how I might do this differently? Thanks!
2/9/21
530views
2comments
0

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