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Java 25
All quests
All levels
Any status
Questions about tasks
Hot
gmb55
Level 25
Tarnów
Question about the task
Threads and bytes
Java Core
,
Level 8
,
Lesson 11
Under discussion
Where should be resultMap.put() method?
What is wrong? I saw in other's solutions that they made new methods to return int and then they put sth like resultMap.put(URL, realThread.returnMethod()); How to solve this task with void run() method?
9/5/19
1480
views
1
comment
0
Anthony Chalk
Level 30
London
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Archived
Can't see the problem
please help
10/24/19
1359
views
2
comments
0
Adarsh
Level 3
Mumbai
Question about the task
Minimum of three numbers
Java Syntax
,
Level 2
,
Lesson 8
Under discussion
Stuck here!!! Help
Last condition isn't fulfilling. Please help
10/14/19
1033
views
2
comments
0
Ana Maria iacob
Level 7
Rimini
Question about the task
Somehow average
Java Syntax
,
Level 4
,
Lesson 16
Resolved
Some help ?? thank s :)
i need a clue for the last condition?
10/14/19
1077
views
2
comments
0
Abhishek Rangari
Level 22
Nagpur
Question about the task
Splitting a file
Java Core
,
Level 8
,
Lesson 5
Resolved
can anyone help me in this task
Code is working fine in Eclipse, but not working here..
12/17/18
1587
views
2
comments
0
Lex Medeiros
Level 18
San Jose
Question about the task
Rounding numbers
Java Core
,
Level 8
,
Lesson 11
Under discussion
FileOutStream is only for images, videos and binary data?
I am a bit confused with this task. I have not found yet something that reads numbers in a file. Do I have to take the bytes, change them into numbers and then round them, turn them back into bytes and store them? How do I know the representation of the number in bytes? Thanks for your help!
8/22/19
1394
views
2
comments
0
ashgolan
Level 8
Ashdod
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Archived
need help please .. why its not work ?
need help please .. why its not work ?
10/23/19
1649
views
6
comments
0
ashgolan
Level 8
Ashdod
Question about the task
Longest string
Java Syntax
,
Level 7
,
Lesson 6
Archived
i dont know whats the problem . its work fine !!
i dont know whats the problem . its work fine !! can anybody help ?
10/23/19
1418
views
4
comments
0
Alex
Level 24
Sibiu
Question about the task
Shall we play?
Java Core
,
Level 6
,
Lesson 13
Resolved
The player should not display a victory message if the variable isWinnerFound is already set to true (i.e. the winner has already been found).
Any help please ? What is wrong here ? I tried to put also: if(i == 3 && !OnlineGame.isWinnerFound) { ... } and is not working. It is very annoying. package com.codegym.task.task16.task1627; import java.util.ArrayList; import java.util.List; public class Solution { public static void
9/22/19
1623
views
4
comments
0
Abhishek Raghav
Level 1
Bangalore
Under discussion
About dark matter points
How do i increase my dark matter to get to the next level on java learning course ?
10/17/18
1571
views
2
comments
0
Whitney
Level 14
Onalaska
Question about the task
Duplicating words
Java Syntax
,
Level 7
,
Lesson 9
Resolved
Question on loops
So I'm just a bit confused on why my loops weren't successful in their implementation. 1. I tried running a while loop for the keyboard input:while (true){ if (reader.readLine() == null){ break; } list.add(reader.readLine()); } but it was
10/23/19
1549
views
4
comments
0
Abhirami
Level 17
Bangalore
Question about the task
One large array and two small ones
Java Syntax
,
Level 7
,
Lesson 4
Under discussion
what is wrong here?
any help?
10/23/19
1157
views
2
comments
0
Laurence Chadwell
Level 4
San Antonio
Question about the task
Flip the array
Java Syntax
,
Level 7
,
Lesson 4
Under discussion
A little help please
All I need to know is why isn't it reversing?
10/8/19
1687
views
3
comments
0
Abhirami
Level 17
Bangalore
Question about the task
Sorting three numbers
Java Syntax
,
Level 4
,
Lesson 6
Resolved
what 's the error in my code? can anyone please help me?
what 's the error in my code? can anyone please help me?
10/21/19
1152
views
2
comments
0
Abhirami
Level 17
Bangalore
Question about the task
Task about algorithms
Java Syntax
,
Level 5
,
Lesson 12
Archived
What's wrong in my code? Someone please help me!!!
what's the issue here?
10/22/19
1084
views
4
comments
0
sirisha karanki
Level 10
Question about the task
Sorting three numbers
Java Syntax
,
Level 4
,
Lesson 6
Under discussion
please hellp!!
import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader r= new BufferedReader(new InputStreamReader(System.in)); int a = Integer.parseInt(r.readLine()); int b= Integer.parseInt(r.r
10/23/19
1088
views
2
comments
0
Radek
Level 22
Warsaw
Question about the task
Your own FileWriter
Java Core
,
Level 9
,
Lesson 11
Archived
pls help.
I have no idea what validator expects from write(int c). I am sure it is ok. it was checked with various methods of transforming int to character or string , always with negative answer from validator irrespective of print or prinltn usage. please help
11/21/18
1664
views
3
comments
1
Anthony Chalk
Level 30
London
Question about the task
Maximum in an array
Java Syntax
,
Level 7
,
Lesson 4
Resolved
I can't find the problem
Please can someone help. Thank you
10/23/19
1182
views
5
comments
0
ddi
Level 18
Dortmund
Question about the task
CRUD
Java Core
,
Level 7
,
Lesson 10
Under discussion
Last condition
What am i missing?
10/10/19
1422
views
8
comments
0
Solanki Dhruv
Level 18
Surat
Question about the task
We don't need repeats
Java Syntax
,
Level 8
,
Lesson 8
Under discussion
Where is the problem?
In my computer it remove persons correctly for duplicates name...but on website it still show error message.?
11/28/18
2242
views
12
comments
0
Satya Vath
Level 31
Vijayawada
Question about the task
Space Invaders (Part 5/34)
Games
,
Level 0
,
Lesson 6
Under discussion
Please Help
Cant Resolve
9/10/19
1382
views
1
comment
0
Satya Vath
Level 31
Vijayawada
Question about the task
2048 (Part 6/18)
Games
,
Level 0
,
Lesson 2
Resolved
Help
Help me
9/10/19
1639
views
1
comment
0
sirisha karanki
Level 10
Question about the task
Maximum of four numbers
Java Syntax
,
Level 4
,
Lesson 6
Resolved
i dont know where it goes wrong
package com.codegym.task.task04.task0419; import java.util.Scanner; /* Maximum of four numbers */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here Scanner s =new Scanner(System.in); int a= s.n
10/7/19
1484
views
3
comments
0
Goff
Level 8
Berlin
Question about the task
Man and woman
Java Syntax
,
Level 5
,
Lesson 12
Resolved
What's wrong, code doesn't pass verifying
Works fine, but validator doesn't like it. What is wrong?
10/9/19
1726
views
2
comments
1
Jimmy Phan
Level 7
Atlanta
Question about the task
Sorting three numbers
Java Syntax
,
Level 4
,
Lesson 6
Under discussion
Please assist
Definitely defeated today lol. Not sure why I'm not grasping the concept of setting the arguments and making it as specific as possible. If I try 0 0 15 it would not work :( please help. thanks.
10/22/19
1014
views
2
comments
0
Azamat Aminov
Level 1
Tashkent
Question about the task
Minesweeper (Part 4/16)
Games
,
Level 0
,
Lesson 0
Resolved
Where is error? Please help
.
10/21/19
1840
views
2
comments
0
hidden #10412202
Level 8
Question about the task
Shortest or longest
Java Syntax
,
Level 7
,
Lesson 6
Under discussion
Code runs correctly, test fails
package com.codegym.task.task07.task0712; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; /* Shortest or longest */ public class Solution { public static void main(String[] args) throws Exception { //write you
12/25/18
1609
views
10
comments
0
Paul
Level 24
Vienna
Question about the task
Our first converter!
Java Syntax
,
Level 2
,
Lesson 2
Resolved
saving a value in a double
I don't really get the idea, why saving the result of this calculation in a double doesn't give me the right result: double a = 9/5 ; shouldn't it be the same as : double a = 9/5.0 ; Still I get totally different results and I am wondering why.
10/15/19
984
views
2
comments
0
Timothy Strong
Level 4
San Diego
Question about the task
Minimum of three numbers
Java Syntax
,
Level 2
,
Lesson 8
Under discussion
I do know what I am doing wrong?
package com.codegym.task.task02.task0216; /* Minimum of three numbers */ public class Solution { public static int min(int a, int b, int c) { int min; if (a <= b && a <= c);{ min = a;} if (b <= c && b <= a);{
10/13/19
1414
views
3
comments
0
Vahan
Level 41
Tbilisi
Question about the task
Table
Java Core
,
Level 8
,
Lesson 8
Resolved
How to display the number of elements in the list? None of the solutions (in the comments) were verified! Are there any more?
public class Solution { public class TableInterfaceWrapper implements TableInterface { TableInterface rows; public TableInterfaceWrapper (TableInterface rows) { this.rows = rows; } public void setModel(List rows) { // int sizeOfList = row
10/21/19
1066
views
2
comments
0
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