Page 115 | CodeGym online Java course - Help

Janusz
Level 11
Radomsko
Question about the task Countdown
Java Syntax, Level 7, Lesson 12
Under discussion
What is wrong Why the message appears? I'm sure the code is OK com/codegym/task/task07/task0723/Solution.java:12: error: unreported exception java.lang.InterruptedException; must be caught or declared to be thrown Thread.sleep(100); public class Solution { public static void main(String[] args) {
1/21/19
2773views
7comments
1
Matno
Level 2
London
Question about the task As simple as 2+2
Java Syntax, Level 1, Lesson 8
Under discussion
did we learn this in the previous lesson?..I don't understand at all even the previous task.
11/29/20
832views
2comments
0
Dinesh
Level 7
Delhi
Question about the task Do we have a pair?
Java Syntax, Level 4, Lesson 4
Under discussion
What went wrong import java.io.*; public class Pair { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader (new InputStreamReader(System.in)); String num1 = reader.readLine(); String num2 = reader.r
11/29/20
623views
2comments
0
// Java Poser
Level 18
Cincinnati
Question about the task Time for 10,000 get calls
Java Syntax, Level 8, Lesson 6
Resolved
Can someone please drop a hint??intelliJ is not allowing my getSeconds() method to work, not sure why.
3/9/19
1661views
3comments
0
Rohit Aggarwal
Level 32
New Delhi
Question about the task Aggregator (part 15)
Java Collections, Level 8, Lesson 15
Resolved
Can anyone help me out here???It's failing on 3rd condition and I'm not able to understand why. I tried running the code on my local machine with dummy data, and it seems to produce the correct output. I'm clearly removing the template class and style attribute from the copy of element having the template class, Line 24-27
8/14/20
906views
3comments
2
BlueJavaBanana
Level 37
Question about the task Palindrome?
Java Multithreading, Level 10, Lesson 2
Resolved
Can someone explain the requirements a bit more?I'm getting different outputs, I'm ot sure I understand the task requirements properly. This ismy curren code: public class Solution { public static void main(String[] args) { System.out.println(getRadix("112")); // Expected output: [3, 27, 13, 15] System.out.println(ge
11/29/20
526views
2comments
0
Tay2von
Level 6
Oklahoma City
Question about the task Three numbers
Java Syntax, Level 4, Lesson 6
Resolved
Everything functions properly but fails.... Why????
11/29/20
622views
2comments
0
Usama Ali
Level 2
Multan
Question about the task As simple as 2+2
Java Syntax, Level 1, Lesson 8
Under discussion
I didn't understand what to do can anyone help plz?Tried all the methods that I could
9/16/18
1837views
8comments
0
Maria
Level 7
Berlin
Question about the task Longest string
Java Syntax, Level 7, Lesson 6
Resolved
Help please, I dont know why the program dosent work Hello everyone, I need help with these task, is not verifying, I dont know why, I hope you can help me Greetings, Maria :D
11/29/20
764views
2comments
0
Shadow
Level 7
Hogsmead
Question about the task Positive and negative numbers
Java Syntax, Level 4, Lesson 7
Resolved
helpp why is still the last condition not completed...
11/26/20
620views
2comments
0
Lex Icon
Level 17
Sofia
Question about the task Remove and insert
Java Syntax, Level 7, Lesson 6
Resolved
The problem with 4th condition.Please, help.
11/20/20
713views
5comments
0
Robert Constantinescu
Level 1
Bucharest
Question about the task Expressing ourselves more concisely
Java Syntax, Level 7, Lesson 6
Archived
Am i missing something?So the program looks like it displays the desired output, but for some reason(that i can't figure out) it doesn't pass testing? Could you let me know what the problem is here? Thanks you
10/22/19
1304views
5comments
0
MP
Level 8
Wietzendorf
Under discussion
Redoing tasks Is there a way to redo tasks? I stopped learning and want to start over again
11/28/20
738views
1comment
0
Matthäus Schüle
Level 6
Question about the task Man and woman
Java Syntax, Level 5, Lesson 12
Under discussion
I need some help here ...Hi all, i really do not get it. Where exactly is my failure in this task ... Thanks in advance for your help
11/28/20
616views
2comments
0
Шарох
Level 12
Question about the task Maximum in an array
Java Syntax, Level 7, Lesson 4
Resolved
Hi Coders ! We want to find max number in an array list . I have three questions : 1) We need a loop, for checking our condition in the scope of array list. And we need a "if condition" for our purpose. So what should I do now.I don't know why "Arrays" is such ambiguous. 2) What's my fault ? 3) Please introd
11/27/20
755views
4comments
0
Erhan H.
Level 23
Istanbul
Question about the task Introducing properties
Java Core, Level 10, Lesson 2
Under discussion
Help please Help please
12/2/19
1380views
1comment
0
Baurzhan Konurbayev
Level 40
Question about the task Introducing properties
Java Core, Level 10, Lesson 2
Under discussion
Still failing after fixing comments Hi, Previously I had issue with comments, but it was fixed and I was able to load from txt with the same content as on Wikipedia. Could you please check? Thanks
8/18/20
650views
2comments
0
hidden #10618197
Level 16
Under discussion
Condition 4 not met? but why, the programm does what it shoud
11/20/20
635views
2comments
0
hidden #10618197
Level 16
Under discussion
Last condition not met, but why? The programm does what it shoud!
11/20/20
505views
2comments
0
Seferi
Level 22
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Under discussion
Help is greatly appreciated I'm failing the last condition..
11/10/20
737views
11comments
0
Nouser
Level 36
Question about the task CountDownLatch
Java Multithreading, Level 7, Lesson 9
Resolved
Can someone explain me why?So I have stripped down the someMethod() to just latch.await() and the retrieveValue() call. Validation gives me the hint to 'call countDown on the object stored in the latch field'. But why? await stops all threads till the latchs internal counter is set to zero. If I countdown before await what's
11/25/20
865views
7comments
0
Andrei
Level 41
Question about the task Census
Java Syntax, Level 8, Lesson 8
Resolved
On paper everything is fine, even read many other comments to the problem and the Help section, still, not passing verification. public class Solution { public static int countFirstName = 0; public static int countLastName = 0; public static HashMap createMap() { //write your code here HashMap mapOfNames = new HashMap<>(); mapOfNames.put("Andrei", "Damigeana"); mapOfNames.p
11/3/20
838views
4comments
0
Andrei
Level 41
Question about the task Writing to a file from the console
Java Core, Level 3, Lesson 11
Resolved
Is there a way I could make my program simpler, more elegant? public class Solution { public static void main(String[] args) throws IOException, FileNotFoundException { // write your code here BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String str1 = null; String str2 = "exit"; String
11/27/20
511views
2comments
0
Seferi
Level 22
Question about the task Stranger things
Java Core, Level 10, Lesson 2
Resolved
Help is appreciated - equals method Nothing I tried worked. Can someone point me to the right direction?
11/25/20
673views
4comments
0
Шарох
Level 12
Question about the task Cat relations
Java Syntax, Level 6, Lesson 11
Resolved
Hi Coders! 1. What's @Override ? 2. What's my code wrong 😞?
11/25/20
882views
7comments
0
Karol Wijas
Level 12
Zawada
Under discussion
Poziomy trudności zadań ?Witam, Czy ktoś opisze poziomy trudności zadań? Tak z ciekawości bo nie mogę nigdzie znaleźć na stronie :D
11/26/20
544views
5comments
0
Andrei
Level 41
Question about the task Don't mix beer with cola
Java Core, Level 3, Lesson 2
Resolved
public vs default?If public interface drink is public, and public class beer is public and boolean isAlcoholic is default, why do I have to change it to public when implementing it in beer class?
11/26/20
546views
2comments
0
Jeremi Nuer
Level 7
San Francisco
Question about the task String array in reverse order
Java Syntax, Level 7, Lesson 4
Resolved
Should work... why doesn't it?I've checked other peoples problems, and looked over mine quite a few times. Everything should work, but its not fulfilling last two requirements, and its not telling me whats wrong.
11/26/20
486views
1comment
0
Albert
Level 6
Hong Kong
Question about the task Create a Rectangle class
Java Syntax, Level 5, Lesson 9
Under discussion
Cannot get the point of this task // I kind of pass the task, but I have completely no idea what I have done // Did I miss any element from the task? /* if I type: public Rectangle(int left, int width){ // case A this.left = left; this.width = width; } does it presents to the system the same as: pu
11/24/20
835views
2comments
0
Maryem Vickers
Level 7
HT...
Question about the task Longest string
Java Syntax, Level 7, Lesson 6
Under discussion
Hey, what is the NullPointerException Error here?! I need some help!Hi coders, Can I have some help?! If you run this, you find this error; java.lang.NullPointerException at com.codegym.task.task07.task0708.Solution.main(Solution.java:23) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethod
11/13/20
509views
2comments
0

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