Page 267 | CodeGym online Java course - Help

Kent Hervey
Level 19
Question about the task Feng Shui and statics
Java Syntax, Level 6, Lesson 11
Under discussion
Please explain why it works I got verification/passed using the below, but why? How? I just guessed. And what does this do? A=15; public class Solution { public static int A = 5; public int B = 2; public int C = A * B; public static void main(String[] args) { A = 15; } }
25.10.2019
1442views
4comments
0
Szymon
Level 18
Lublin
Question about the task Array of string lists
Java Syntax, Level 10, Lesson 11
Under discussion
failed condition Hi, I have a problem with this task. My solution is attached. The failed condition is: "The createList method must declare and initialize an array with ArrayList elements." but according to oracle documentation -> "You cannot create arrays of parameterized types.". What am i missing here?
12.10.2018
1808views
3comments
0
Kent Hervey
Level 19
Question about the task Labels and numbers
Java Syntax, Level 4, Lesson 7
Resolved
%2==1 does not test for odd numbers properly for negative numbers It seems %2==1 does not test for odd numbers properly for negative numbers? Why The below does not work for negative numbers such as -9: if(enteredNumber%2==1){ System.out.println("is odd"); }
14.10.2019
1088views
2comments
0
kareandr
Level 35
Podol'sk
Question about the task Word search
Java Core, Level 10, Lesson 10
Under discussion
Recursive problems Hello everyone! Ive tried to solve this with recursion but it fails with message "The list returned by detectAllWords is not the right size!". System.out.println(words.length) prints 2. System.out.println(wordsList.size()) prints 2, same size. System.out.println(wordsList) prints [home - (5, 3) - (
08.07.2019
1323views
1comment
0
Patrick freeman
Level 14
Buffalo
Question about the task To the top of the list
Java Syntax, Level 7, Lesson 6
Resolved
Trying to understand this part of a for loop Ok, so, to pass this task, I had to make the final for loop condition what is shown below, and this allowed me to println my entered array in reverse order of what was typed, but I don't really understand what is shown inside the parenthesis. I would think what I am doing here is Declaring a new Str
20.10.2019
1241views
2comments
0
Krunoslav Krainović
Level 16
Question about the task Functionality is not enough!
Java Syntax, Level 10, Lesson 11
Resolved
Seems it works but wont accept Seems it works but wont accept
25.10.2019
1078views
3comments
0
Luis Rodriguez Ugarte
Level 22
Chatillon-sur-Chalaronne
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Under discussion
I do not know why does not validated "Be sure that the program writes all the words containing numbers from the first file to the second file." I have try out to different test but it's working on perfectly good, any ideas please?
25.10.2019
1123views
2comments
0
Петр Зинченко
Level 19
Kharkiv
Question about the task Splitting a file
Java Core, Level 8, Lesson 5
Under discussion
What wrong?? 3&4 failed Help please, i checked, it is work but don't pass
24.10.2019
1158views
4comments
0
Kent Hervey
Level 19
Question about the task ConsoleReader class
Java Syntax, Level 6, Lesson 8
Under discussion
b percent of the number a ??what does this mean: b percent of the number a I would think if b is 10 and a is 40, then the result should be 25 as in 25% But?
25.10.2019
1221views
1comment
0
赟高
Level 16
Jinan
Question about the task Brain training
Java Core, Level 5, Lesson 12
Under discussion
An error occurred during verification This is my code.Is anything wrong? public class Solution { public static void main(String[] args) { Duck duck = new Duck(); Util.fly(duck); Util.move(duck); } public static class Duck implements CanFly, CanMove { @Override public void doAction()
13.10.2019
1142views
2comments
0
Angeget
Level 22
Potsdam
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Resolved
Help please, maybe i do not understand the requirement. what am i am doing wrong hier?
16.03.2019
1240views
1comment
0
corsi
Level 4
Furiani
Question about the task This age doesn't work for me…
Java Syntax, Level 4, Lesson 1
Under discussion
i do not understand lesson package com.codegym.task.task04.task0401; /* This age doesn't work for me… */ public class Solution { public static void main(String[] args) { Person person = new Person(); System.out.println("Age: " + person.age); person.adjustAge(person.age); System.out.pri
07.04.2019
3193views
4comments
0
Andrew
Level 29
Seattle
Question about the task Horse racing
Java Core, Level 6, Lesson 5
Archived
Not passing first 3 validation tests, not sure why 1. The calculateHorsesFinished method must return the number of horses that have finished: Number 2.3 in the conditions says to only count horses as finished if you don't have to wait for them. In main(): while (calculateHorsesFinished(horses) != horseCount) {} indicates that the calculateHorsesFini
07.02.2019
1558views
6comments
1
Robert Constantinescu
Level 25
Bucharest
Question about the task Longest string
Java Syntax, Level 7, Lesson 6
Archived
Am i missing something?So, in IDE it works just fine and returns the longest strings, but for some reason when i try to validate it fails. Can someone let me know what i am missing here? Many thanks
22.10.2019
1012views
3comments
2
Wojtek
Level 23
Solec-Zdroj
Question about the task Static cats
Java Syntax, Level 6, Lesson 11
Archived
Can you give me hint how to resolve this?need hint
07.01.2019
1678views
3comments
0
Przemysław Dr
Level 20
Tricity
Question about the task Request parser
Java Core, Level 5, Lesson 12
Resolved
Are the requirements ok?Are the requirements ok? What should be the output of input: http://codegym.cc/alpha/index.html?lvl=15&view&name=Amigo Should it really be: lvl view name orlvl view name double: 15.0 String: Amigo ?
24.10.2019
1429views
2comments
0
Ryan
Level 7
edmonton
Question about the task Static cats
Java Syntax, Level 6, Lesson 11
Archived
Please explain why this doesn't work I am unsure if I am printing the arraylist right or adding to the arrylist right
08.06.2019
1371views
2comments
0
Dinca
Level 14
Giurgiu
Question about the task Shortest or longest
Java Syntax, Level 7, Lesson 6
Under discussion
I can t figure out what is wrong package com.codegym.task.task07.task0712; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; /* Shortest or longest */ public class Solution { public static void main(String[] args) throws Exception
23.10.2019
993views
2comments
0
Han
Level 24
Question about the task Writing to an existing file
Java Collections, Level 2, Lesson 2
Resolved
My code works fine locally but doesn't seem to validate on the server I have no clue why not even the first requirement is met: You must use RandomAccessFile in the Solution class's main() method.
24.10.2019
1296views
3comments
0
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?
05.09.2019
1387views
1comment
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
24.10.2019
1257views
2comments
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
14.10.2019
917views
2comments
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?
14.10.2019
974views
2comments
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..
17.12.2018
1462views
2comments
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!
22.08.2019
1304views
2comments
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 ?
23.10.2019
1507views
6comments
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 ?
23.10.2019
1299views
4comments
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
22.09.2019
1491views
4comments
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 ?
17.10.2018
1466views
2comments
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
23.10.2019
1425views
4comments
0

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