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Java 25
All quests
All levels
Any status
Questions about tasks
Hot
Ahmed
Level 23
Amsterdam
Question about the task
To the top of the list
Java Syntax
,
Level 7
,
Lesson 6
Resolved
Don't know why it still doesn't accept the answer
Can anyone explain why it still doesn't accept my answer? When i run the application locally it does what i expected. Thanks!
5/6/19
1925
views
6
comments
0
Joy Majumdar
Level 16
Kolkata
Question about the task
OOP: Method overloading
Java Core
,
Level 5
,
Lesson 12
Under discussion
Wheres's the problem ?
Can't get
8/9/19
1179
views
1
comment
0
gmb55
Level 25
Tarnów
Question about the task
Following a pattern
Java Core
,
Level 6
,
Lesson 13
Resolved
2.5s?
What is wrong with this 2.5s?
8/17/19
1603
views
1
comment
0
Talha
Level 5
Lahore
Question about the task
Escaping characters
Java Syntax
,
Level 3
,
Lesson 6
Resolved
com/codegym/task/task03/task0316/Solution.java:13: error: reached end of file while parsing } ^
What should I do to finish this error?
8/8/19
1399
views
1
comment
0
Patrick Lao
Level 2
Question about the task
Implement the print method
Java Syntax
,
Level 2
,
Lesson 1
Under discussion
My code does not match the 5th requirement. Need help.
1. Under 'public static void print(String s)', I have type in once: System.out.println("Java is easy to learn!"); System.out.println("Java opens many opportunities"); In the display, it showed 4 strings. Then why the 5 requirement is failing? 2. also what is the difference between public static v
8/6/19
1489
views
3
comments
0
codeJavaster
Level 15
Goeteborg
Question about the task
Cats should not be abstract!
Java Core
,
Level 2
,
Lesson 6
Under discussion
How do I use getName method?
Could someone explain please?
8/7/19
1290
views
1
comment
0
Randall John
Level 19
San Jose
Question about the task
Arithmetic mean
Java Syntax
,
Level 5
,
Lesson 5
Under discussion
My Variable Values are Supposedly correct but I can't get the right answer.
When I enter 1,2,2,4,5, -1, it doesn't work. It gives me 2.0 instead of 2.8 for some reason :(
8/15/19
1301
views
2
comments
0
Connor
Level 8
Boston
Question about the task
Create a Friend class
Java Syntax
,
Level 5
,
Lesson 7
Under discussion
I'm not understanding the concept.
I've read and reread the lecture. But I think I'm just not understanding why we initialize something. Could someone give me a real world example of the uses? Also I don't get the syntax very well so if you want to help me out with that then I'd appreciate it but I absolutely don't mind learning th
4/25/19
1652
views
2
comments
1
Ewerton
Level 30
Belo Horizonte
Question about the task
Let's make the code do something useful!
Java Syntax
,
Level 9
,
Lesson 11
Under discussion
Third requirement only. Help?
Don't know where is the problem. First time this occurs... And the statement / initial code from the website differs from Intellij plugin.
6/28/19
1766
views
3
comments
0
Show How
Level 8
Newbury
Question about the task
Expressing ourselves more concisely
Java Syntax
,
Level 7
,
Lesson 6
Archived
Why is this solution not working.
I have tested the code with different inputs and it gives the right output but not passing the most tests in codegym. I also tried changing List to ArrayList in the instant variable still no luck. Anybody please explain what I am doing wrong here? Thanks.
5/21/19
1767
views
10
comments
0
arvindsid
Level 10
Chennai
Question about the task
We don't need repeats
Java Syntax
,
Level 8
,
Lesson 8
Resolved
Check the createMap() method. The HashMap should consist of 10 entries that represent (last name, first name) pairs.
What is wrong with the create map method given below? public static HashMap<String, String> createMap() { HashMap<String, String> hashMap = new HashMap<String, String>(); hashMap.put("last","Peter"); hashMap.put("last","Andy"); hashMap.put("last","
3/7/19
1877
views
4
comments
0
Aleksandar
Level 11
Skopje
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Archived
Can't pass verification
I tested my code and works fine. Any idea what's wrong?
8/14/19
1391
views
2
comments
2
Niladri pradhan
Level 33
Mumbai
Question about the task
Chicken factory
Java Core
,
Level 4
,
Lesson 6
Under discussion
Why i get so many failed verification
please help
8/16/19
1116
views
1
comment
0
Luyi
Level 31
Kosice
Question about the task
Building a file
Java Core
,
Level 8
,
Lesson 11
Resolved
any tips?
Hi all, could you please give me some tips?
8/15/19
1288
views
2
comments
0
Laurap5
Level 9
Vilnius
Question about the task
Labels and numbers
Java Syntax
,
Level 4
,
Lesson 7
Resolved
Please help :(
I'm not really sure, why it doesn't work :( Error: If the number is negative and odd, display "Negative odd number".
11/11/18
2514
views
9
comments
0
Husain Kothari
Level 20
Mumbai
Question about the task
Even characters
Java Core
,
Level 9
,
Lesson 5
Resolved
I am using FileWriter but the verifier asks me to use FileWriter
Since I am already using File writer I dont get why my code is not verifying the use FileWriter condition.
7/28/19
1700
views
2
comments
0
Denis
Level 22
Kharkiv
Question about the task
Rarest bytes
Java Core
,
Level 8
,
Lesson 3
Under discussion
give me a help pls
i need a full code
6/28/19
1484
views
1
comment
0
OnigiriByte
Level 16
Question about the task
We don't need repeats
Java Syntax
,
Level 8
,
Lesson 8
Resolved
Is there a solution without making a copy of the HashMap?
So I managed to solve problems like this by making a copy which seems easier, but I wanted to know other ways without using a copy and not getting the ConcurrentModificationException. I've already solved it using a copy, but It would be appreciated if I could get comments with hints, or dm a soluti
1/28/19
2166
views
8
comments
0
Thomas
Level 13
Scottsdale
Question about the task
Seasons on Terra
Java Syntax
,
Level 4
,
Lesson 4
Under discussion
How did this ugly Code pass ? .. output is incorrect ...... How do I fix it for Winter ?
if(month>=3 && month<=5) { System.out.println("spring"); } else if(month>=6 && month<=8) { System.out.println("summer"); } else if(month >=9 && month <=11) { System.out.println("aut
5/24/19
1663
views
6
comments
1
R3fiX
Level 12
Tarnow
Question about the task
Animal set
Java Syntax
,
Level 8
,
Lesson 11
Under discussion
Object comparison
I know, that there is better and easier way to write removeCats method, but I'm just wondering, why my version does not work. The error tells about noSuchElementException so it seems that comparing objects returning false in every case. I tried also with '==' but it didn't work as well. Thanks for h
8/15/19
1640
views
1
comment
0
Alex
Level 24
Sibiu
Question about the task
Make a family
Java Syntax
,
Level 8
,
Lesson 11
Under discussion
Everything prints correctly, but fails to last requirement
Everything prints correctly with and without the for loop.What is the problem ? It fails to last requirement. package com.codegym.task.task08.task0824; import java.util.ArrayList; /* Make a family */ public class Solution { public static void main(String[] args) { //write your code
8/12/19
1692
views
2
comments
0
Przemysław Dr
Level 20
Tricity
Question about the task
Working with dates
Java Syntax
,
Level 8
,
Lesson 11
Resolved
How parsing should look like?
Does anyone successfully parsed given string? I'm aware that this task could be done with a different approach but I would like to understand why it is not parsing... public static void main(String[] args) throws ParseException { String date = "FEBRUARY 4 2015"; Date date1 = new Si
8/9/19
1833
views
2
comments
1
Denis
Level 22
Kharkiv
Question about the task
All that moves
Java Core
,
Level 3
,
Lesson 2
Under discussion
give me your help bro :(
i dont understand how i can ddo this, but i understand all process
6/24/19
1427
views
1
comment
0
Denis
Level 22
Kharkiv
Question about the task
Brain training
Java Core
,
Level 5
,
Lesson 12
Under discussion
help me pls
gime me a code for my full understanding.thanks
6/26/19
1439
views
2
comments
0
Jen P
Level 26
Question about the task
Iterating through a file tree
Java Collections
,
Level 1
,
Lesson 2
Archived
Error : The output stream to the file must be closed.
I constantly met errors of "The output stream to the file must be closed." However, as shown in my current solution, I am pretty sure I have explicitly closed all file output stream, writer , or reader objects. In addition, referring to https://codegym.cc/help/4001 where we shared a similar solutio
8/13/19
1679
views
2
comments
0
Boris the Llama
Level 20
Maidstone
Question about the task
Following a pattern
Java Core
,
Level 6
,
Lesson 13
Resolved
Working correctly but not verifying?
The code seems to be working, but it doesn't verify. In intelliJ it shows the output that is required, but fails the 4th condition.
8/11/19
1531
views
2
comments
0
Abu Bakker Siddiq H
Level 5
Salem
Question about the task
Three numbers
Java Syntax
,
Level 4
,
Lesson 6
Under discussion
Why the last case is not passing at all
Do please refer the code and help me !
7/29/19
1340
views
3
comments
0
Jay
Level 17
Washington
Question about the task
Buggy initializeIdAndName
Java Core
,
Level 3
,
Lesson 2
Under discussion
Task verified BUT I have a question about using "this"
Inside the InitializeAndName method, I initially used: return new User(); and my code did not verify. However, after using "return this;", the code verified. What I understand from that is 1. the return new User(); returned a new instance of the User class without any parameters 2. while the "retur
8/13/19
1345
views
2
comments
0
Scott
Level 13
Boston
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Archived
Multiple Working Solutions Fail Task 3 & 4
Attempted multiple ways and getting the correct output, but the 3 & 4 task requirements show as failures. Attached is one of the working solutions.
8/13/19
1651
views
2
comments
1
hidden #10462592
Level 8
Question about the task
Adding
Java Syntax
,
Level 4
,
Lesson 16
Resolved
Desired result obtained but yet failed to satisfy conditions
The code is able to give output correctly and it is also a infinite loop which means user can enter multiple values and still get the desired output. Alas, it fails to fail to satisfy the conditions mentioned. why?
8/13/19
1356
views
2
comments
0
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