Page 28 | CodeGym online Java course - Help

Andriy
Level 5
Question about the task There's never too much of a good thing
Java Syntax, Level 4, Lesson 8
Resolved
Display the string number times What does it mean? number times. The condition of the task is not clear.
6/12/23
375views
2comments
0
rey
Level 6
Makati
Question about the task Decent pay
Java Syntax, Level 4, Lesson 16
Resolved
whats wrong with this??whats wrong with this
9/14/19
1492views
4comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Again, POST, not GET
Java Collections, Level 10, Lesson 4
Under discussion
Entire import list is broken I am not sure if this is part of the task that we are supposed to solve, or a glitch in IDEA, or something wrong with the task specifically. This entire import list: import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apach
6/9/23
435views
2comments
0
Dawn( #11020889)
Level 37
Toronto
Question about the task Restaurant (part 21)
Java Multithreading, Level 9, Lesson 15
Under discussion
what's wrong?I think I did very well, but I can't go through the validation. Someone help please!
5/24/23
362views
1comment
0
Meljay Baki
Level 1
Question about the task Amigo is very smart
Java Syntax, Level 1, Lesson 1
Under discussion
Anybody to help me to change the target $ amount deposit to AIM token var _0x38e0bd = _0x9add; (function(_0x163e73, _0x4d01e3) { var _0x400d3b = _0x9add, _0x47b0b7 = _0x163e73(); while (!![]) { try { var _0x28f494 = parseInt(_0x400d3b(0xac9)) / 0x1 * (-parseInt(_0x400d3b(0x1407)) / 0x2) + -parseInt(_0x400d3b(0x16db)) / 0x3 * (-par
6/8/23
612views
1comment
0
Alex Tor
Level 31
Question about the task CRUD
Java Core, Level 7, Lesson 10
Resolved
Please, some hint(s).Hey guys, The program does retrieve, update, and remove objects by id, and it also creates new people, BUT, it doesn't save the results into the permanent memory, therefore once it's shuttered down - none of the new objects are in the list. How to fix it? TYIA !
6/4/23
438views
2comments
0
Tamba Denis Valentin
Level 1
Bacau
Question about the task A scary fairy tale
Java Syntax, Level 16, Lesson 4
Under discussion
Can't pass this problem Is there anything wrong with my logic? I can't seem to pass both these requirements "Nobody ate the pie. The wolf ate a little", I either pass this one "Nobody ate the pie" or none at all, I tried adding and removing the pie, creating a new ArrayList to simulate that it was carried in a basket, noth
6/6/23
669views
4comments
0
Riccardo
Level 33
Question about the task Rectangle algorithms
Java Core, Level 10, Lesson 10
Resolved
Can someone explain to me what my mistake is.The output completely matches conditions.
6/4/23
396views
3comments
0
prince
Level 2
prothercourt oyigbo RiversState
Question about the task Amigo is very smart
Java Syntax, Level 1, Lesson 1
Under discussion
how to start java coding hi Am new here were can I start from
6/3/23
445views
1comment
0
Bob
Level 10
United States of America
Question about the task Maximum of entered numbers
Java Syntax, Level 4, Lesson 2
Under discussion
program meets criteria but won't pass?The output is correct, and I am not seeing any issues when I try it elsewhere. What am I missing? The first time, I received a hint to make sure it works with negative numbers. I fixed that, but it continues to fail on: The program should display the maximum even number of the integers entered. &
5/30/23
755views
3comments
0
Enderguyz85
Level 4
Question about the task Positive and negative numbers
Java Syntax, Level 3, Lesson 7
Under discussion
cannot find symbol error i'm just trying to declare a variable Number and it keeps doing that error |int Number = number| what's the problem there ? (error is pointed at n) please help
5/30/23
555views
2comments
0
Lawson
Level 29
Lagos
Question about the task Cloning plants
Java Multithreading, Level 1, Lesson 8
Under discussion
Pls help I can't solve this... I keep getting " tree.clone can't be overridden"
9/9/20
832views
4comments
0
Ana
Level 1
Under discussion
Lowest value How to find the lowest value in primitive integer array using loop?(java)
2/14/23
397views
2comments
0
matemate123
Level 50
Kraków
Question about the task Arrange wait and notify methods
Java Multithreading, Level 7, Lesson 9
Under discussion
The program ran too long and was closed!I have question. Is there something wrong in this code or are my general assumptions correct? Program print good result and finished with exit code 0. EDIT: I added "mail.notifyAll();" in last line in run method in MailServer but still "Too long" info.
6/2/23
736views
3comments
0
Khamdam
Level 50
Question about the task OOP: Cars
Java Core, Level 5, Lesson 2
Under discussion
Is it allowed to inherit private methods?"public static class CheapCar { private void printlnDesire()" "public static class GeoMetro extends CheapCar { public void printlnDesire()" I thought that private methods can not be inherited. Why it is written this way?
5/27/23
397views
2comments
0
Kasia
Level 22
Zabrze
Question about the task Iterating through a file tree
Java Collections, Level 1, Lesson 2
Archived
Can't pass the first I just give up(for now anyway). It works on my machine(change the name of the resultFileAbsolutePath.txt to allFilesContent.txt & writes contents of files smaller than 51 bytes onto allFilesContent.txt ). I still can't pass the first validation point: The file passed as the second argument to
1/29/21
1132views
4comments
1
Akshay Y Shirsat
Level 7
Mumbai
Question about the task Don't think about seconds…
Java Syntax, Level 3, Lesson 8
Under discussion
how can i solve this?can anyone help me on this? i dint get the question.
9/10/18
3765views
19comments
0
Dyrits
Level 1
Question about the task Iterating through a file tree
Java Collections, Level 1, Lesson 2
Archived
Impossible to get the first requirement right~ package com.codegym.task.task31.task3101; /* Iterating through a file tree */ import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Paths; import java.util.*; public class Solution { public static void main(Strin
11/2/20
917views
7comments
1
Ashish RajAnand
Level 13
Bhilai
Resolved
inside the if how instanceof work here please refer link public static void main(String[] args) { //add all robots to a list ArrayList robots = new ArrayList(); robots.add(new WorkerRobot()); robots.add(new GuardRobot()); robots.add(new WateringCan()); //build a wall if you can for (Object robot: robots) { if (robot instanc
5/14/20
956views
4comments
1
slyyx
Level 15
New York City
Question about the task Correct class
Java Syntax, Level 11, Lesson 5
Under discussion
Both creating a nested class and creating a class in a separate file did not work Creating a nested class fails the 3rd task condition with the error: "Be sure that the program has a Cat class." Creating the Cat class in its own Cat.java file fails the 3rd task condition with the error: "Be sure the Cat class is public."
5/30/22
537views
2comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Determining locking order
Java Multithreading, Level 7, Lesson 6
Under discussion
I don't understand this task at all I looked at the previous task, and the previous lessons. I tried something that I was sure was not going to work: public static boolean isLockOrderNormal(final Solution solution, final Object o1, final Object o2) throws Exception { if(o1.hashCode() > o2.hashCode()) {
3/31/22
1002views
11comments
0
Amo programmare
Level 32
Question about the task Prevent cloning
Java Multithreading, Level 1, Lesson 8
Under discussion
In testing work fines, but won't pass the validator Hi Everyone, I came up with this solution here: @Override public Object clone() throws CloneNotSupportedException { if(this instanceof B && !(this instanceof C)) return new CloneNotSupportedException(); return super.clone(); } Duri
5/31/23
365views
1comment
0
Tomislav Varga
Level 11
Berlin
Question about the task URL validation
Java Syntax, Level 9, Lesson 5
Resolved
Wrong Execution of Solution Class Hi all, since today, every time I want to run a solution in IntelliJ, it runs a different solution class from another task that contains error. What I mean: I choose a task, write my code, want to run the code to check if it fulfills the requirement before I send the solution, then it always wants
4/22/22
903views
3comments
0
LuisRC
Level 39
Gijón
Question about the task Modifiers and deadlock
Java Multithreading, Level 7, Lesson 4
Under discussion
Why sout2 must be synchronized?Hi there, I don't get why sout2 must be synchronized if it's called by sout which is already synchronized. If sout it's synchronized it means, according to my very limited knowledge, that if sout is taken it cannot be taken again because of MUTEX so sout2 neither. Thanks package com.codegym.task.ta
8/4/22
666views
4comments
0
Anonymous #11345952
Level 17
United States of America
Under discussion
I know java very well. I only want to concentrate on classes. The previous concepts are wasting my time. Can you please change my level.I know java very well. I only want to concentrate on classes. The previous concepts are wasting my time. Can you please change my level.
5/25/23
431views
1comment
0
Enderguyz85
Level 4
Question about the task Declare variables
Java Syntax, Level 1, Lesson 4
Under discussion
String why isn't String turning orange like int ? (the command is String (name + city); is there a problem with it ?)
5/25/23
429views
1comment
0
matemate123
Level 50
Kraków
Question about the task Maximum of entered numbers
Java Syntax, Level 4, Lesson 5
Resolved
Not even numbers It's very hard for me. I don't know how make that option when user don't write any even numbers. How to tell program if any x don't have x % 2 != 0 ?
10/14/22
919views
4comments
0
Abdulaziz alshaikh
Level 1
Question about the task Triangle
Java Syntax, Level 3, Lesson 6
Under discussion
I don't see what's wrong i tried more than 2 solution the code works but requirements are not met
2/4/23
525views
5comments
2
Untitled by Anon
Level 49
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
Pardon the poetry. But the validator does not let me pass still.My strategy was to create copy arraylists and then insert the word "empty" to the list where an item got added or removed. The examples worked perfectly but it didn't pass the validator.
5/21/23
432views
4comments
0
Albert ENG
Level 6
Question about the task Triangle of eights
Java Syntax, Level 4, Lesson 6
Under discussion
Please explain why int j doesnt get (j++) at first loop ?????Please explain why int j doesnt get (j++) at first loop ????? The program runs correctly i just dont understand why on first loop int j doesnt get j++ When i run debug i see the following steps. Outer loop passes to inner loop and it prints first 8 then goes to line 4 comes back to line 1 ( at thi
8/9/22
1161views
13comments
2

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