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  • All questions
  • Jordan Zebouni
    Level 25
    Jacksonville
    Question about the task Take your turn!
    Java Core, Level 6, Lesson 13
    Under discussion
    Why is my task not passing?Is it that I am building one string?
    • 18.11.2020
    • 472views
    • 3comments
    0
  • Radek
    Level 22
    Warsaw
    Question about the task The early bird gets the worm
    Java Core, Level 6, Lesson 13
    Under discussion
    Help, please.I am trying to solve this task but program cannot finish normal way - after result id displayed, it need additional inputs to close reader and Exception is thrown in one of threads. Can you give me some hint?
    • 09.11.2018
    • 1862views
    • 7comments
    1
  • Maxine Hammett
    Level 19
    San Diego
    Question about the task Even numbers
    Java Syntax, Level 4, Lesson 13
    Under discussion
    Not finishing final task although program writes numbersMy code doesn't pass the "The program should display even numbers...". I'm not sure why because the output is from 2 through 100;
    • 15.06.2020
    • 877views
    • 7comments
    0
  • Ilia Kalugin
    Level 25
    Novara
    Question about the task Seeing dollars in your future
    Java Syntax, Level 4, Lesson 10
    Under discussion
    HelpWhat's right solution if do not use String like "$$$$$$$$$"?
    • 16.11.2019
    • 1511views
    • 3comments
    0
  • Christopher Abbott
    Level 7
    Coppull
    Question about the task You can't have too much of a good thing
    Java Syntax, Level 4, Lesson 10
    Under discussion
    So it is working fine but says it is not printing string n times but is is? package com.codegym.task.task04.task0432; import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String alpha = reader.readLine(); String iNum = reade
    • 27.08.2020
    • 682views
    • 4comments
    0
  • Aditya
    Level 5
    Baleshwar
    Question about the task 1 to 10
    Java Syntax, Level 4, Lesson 10
    Under discussion
    I CodeGym AI is mad.... 🙁just see my code it won't fulfill conditions as printing 1 to 10 and printing each value on new line
    • 04.01.2020
    • 1014views
    • 3comments
    2
  • Gellert Varga
    Level 23
    Szekesfehervar
    Under discussion
    Sometimes English is my nightmare... - "This method blocks until input data is available"Here's a sentence about the read() and read(array, index, pieces) methods of the InputStream class from the Oracle site that I can't explain to myself at all: "This method blocks until input data is available, end of file is detected, or an exception is thrown." I have two very seperated questions
    • 19.01.2021
    • 628views
    • 2comments
    0
  • Liliane Top
    Level 24
    Amsterdam
    Question about the task Reading and writing static fields to a file
    Java Core, Level 10, Lesson 2
    Resolved
    What is happening here?I'm confused about the second object that is created. The loadedObject is the same as the classWithStatic as we read from the file. But what is happening to the new values? It seems that it is completely ignored. Now I tried to write to objects to the file by trying loadedObject.save(outputStream) b
    • 16.01.2021
    • 613views
    • 1comment
    0
  • Goran
    Level 41
    Belgrade
    Question about the task Number algorithms
    Java Core, Level 10, Lesson 10
    Under discussion
    Correct result but not passingEvery time i try to pass it says too long, like I have infinity loop. Does anyone see here any error ?
    • 20.10.2020
    • 394views
    • 0comments
    0
  • David
    Level 29
    Paris
    Question about the task Overriding serialization in a thread
    Java Core, Level 10, Lesson 10
    Under discussion
    Need helpHello Someone can help me
    • 21.10.2020
    • 603views
    • 0comments
    0
  • Davedabull
    Level 22
    New York City
    Question about the task Number algorithms
    Java Core, Level 10, Lesson 10
    Under discussion
    Am I not returning an array?What's wrong? Missing the last task condition, very confused.
    • 25.10.2020
    • 420views
    • 0comments
    0
  • Goran
    Level 41
    Belgrade
    Question about the task What's in the folder?
    Java Collections, Level 1, Lesson 4
    Under discussion
    Correct output but I am getting this error : "CodeGym security exception. You are performing a forbidden or potentially dangerous operation."I tested on my folder all is correct but I get error.
    • 31.10.2020
    • 548views
    • 0comments
    0
  • Daniel Whyte
    Level 17
    Question about the task Dog registration
    Java Syntax, Level 5, Lesson 9
    Under discussion
    public DogWhy are the do the methods begin with public Dog rather than public void?
    • 18.01.2021
    • 668views
    • 1comment
    0
  • slyyx
    Level 15
    New York City
    Question about the task Countdown at the races
    Java Core, Level 6, Lesson 10
    Under discussion
    What is the main method supposed to do?I can tell I'm misunderstanding how the program is supposed to work, since I am only printing out "Interrupted!" instead of actually calling the interrupt() method, but I don't understand what the main method should do and what the purpose is of the main method calling Thread.sleep(3500)
    • 19.01.2021
    • 384views
    • 1comment
    0
  • Liliane Top
    Level 24
    Amsterdam
    Question about the task Spaces
    Java Core, Level 8, Lesson 11
    Resolved
    What is wrong with my code?No idea why I fail the test. I saw the solution but it doesn't make any sense. 1) they do not close the stream 2) And I don't see what is wrong with my code as the only difference is that they add if(total != 0;
    • 03.01.2021
    • 500views
    • 9comments
    0
  • Rich
    Level 23
    San Diego
    Question about the task CRUD
    Java Core, Level 7, Lesson 10
    Resolved
    hint plsit's saying the -u argument section may be changing list size and -i argument section doesn't print to screen.
    • 19.01.2021
    • 584views
    • 2comments
    0
  • Chandan Thapa
    Level 22
    Dubai
    Question about the task Introducing tags
    Java Core, Level 9, Lesson 11
    Resolved
    Got the correct output but it does not verify.I have worked on this for hours and this is probably the best i could do .. please help.
    • 16.01.2021
    • 664views
    • 13comments
    0
  • Jasey
    Level 13
    Chester
    Question about the task The isomorphs are coming
    Java Core, Level 2, Lesson 12
    Under discussion
    Appreciate a another set of eyes. Not sure why it is failing. I often would rather stare at the code until I see the issue, but this one it taking me too long. It is complaining that: The Solution class must have two methods. ( Main and getMinimumAndIndex) - Still an issue - It is complaining: The getMinimumAndIndex() method must return the minimum of the arr
    • 10.11.2020
    • 389views
    • 0comments
    0
  • AlfredW
    Level 23
    Denver
    Question about the task Reading and writing to a file: CodeGym
    Java Core, Level 10, Lesson 2
    Under discussion
    Hmm, Missing something here.It seems like it is a fairly straight forward task, but there is something I am missing. It keeps telling me that: "Check why the users list is empty after the file has been read." I figure it is some super obvious thing that I am simply not seeing.
    • 05.11.2020
    • 421views
    • 1comment
    0
  • sourav bamotra
    Level 20
    jammu
    Question about the task Tracking changes
    Java Core, Level 9, Lesson 11
    Under discussion
    hi there! I've got the idea what to do but little confuseif the position of lines of file1 are different as that of the file2, then that line will be considered as removed? for example : //list1.get(0).equals(list2.get(4)) the element in this case will be encountered with what tag ? Same, Removed,Added?
    • 24.10.2020
    • 419views
    • 0comments
    0
  • Ezra Dean
    Level 16
    New York City
    Question about the task Chicken factory
    Java Core, Level 4, Lesson 6
    Under discussion
    pay close attention to the output fomart"North America" not "NorthAmerica"
    • 21.10.2020
    • 486views
    • 0comments
    0
  • Dinesh
    Level 7
    Delhi
    Under discussion
    what is wrong in this code public class CloseToTen{ public static void main(String[]args){ displayClosestToTen(8,12); displayClosestToTen(7,14); } public static void displayClosestToTen(int a, int b){ //Write you code here int x = a-10; int y = b-10; x=Math.abs(x); y=Math.abs(y); if (x
    • 18.01.2021
    • 345views
    • 0comments
    0
  • Blizniak
    Level 4
    Cieszyn
    Under discussion
    Pomocy, nie wiem co jest nie tak, pierwsza rzecz ktorej nie potrafie zrozumiecpackage pl.codegym.task.task02.task0216; /* Najmniejsza z trzech liczb */ public class Solution { public static int min(int a, int b, int c) { if (a<=b) && (a<=c); return a; else (b<=c) && (b<=a); return b;
    • 11.01.2021
    • 462views
    • 0comments
    0
  • fiskaren
    Level 8
    Malmö
    Question about the task Minesweeper (Part 1/16)
    Games, Level 0, Lesson 0
    Under discussion
    I want to run the application so that the field is visible but I do not know how! I can still complete tasks but I want to see the result and progression of the game as I complete each task. Please Help!I tried to run it: But then this happens: Thanks for taking your time and looking into this!
    • 21.12.2020
    • 575views
    • 0comments
    0
  • lijin
    Level 20
    Beihai
    Under discussion
    how to do @Override public void onTurn(int turnDelay){ snake.move(apple); if(apple.isAlive == false){ score += 5; setScore(score); turnDelay -= 10; setTurnTimer(turnDelay); createNewApple(); } if(!snake.isAlive){
    • 15.10.2020
    • 468views
    • 0comments
    0
  • Carlitos Martinez
    Level 4
    Villa Mercedes
    Under discussion
    ¿Porque los ejecicios del nivel 3 no se pueden resolver?Hola, vengo teniendo problemas con los ejercicios del nivel 3, no puedo hacerlos. No hay forma de verificar ni cargar los datos. Espero su respuestas, desde ya muchas grancias.
    • 31.08.2020
    • 398views
    • 0comments
    0
  • Bodea Tudor Andrei
    Level 25
    Cluj-Napoca
    Under discussion
    Can we publish our work on github?Hi! I was wondering if we can share the GameProjects on github so we can put it in our CV.
    • 03.09.2020
    • 531views
    • 0comments
    0
  • Liliane Top
    Level 24
    Amsterdam
    Question about the task Overriding serialization in a thread
    Java Core, Level 10, Lesson 10
    Under discussion
    Couple of questions for a better understanding. package com.codegym.task.task20.task2022; import java.io.*; import java.util.Objects; /* Overriding serialization in a thread */ public class Solution implements Serializable, AutoCloseable { //Write the verification code yourself in the main method: //1) create an instance of the Solu
    • 18.01.2021
    • 475views
    • 4comments
    0
  • Lawson
    Level 29
    Lagos
    Question about the task Equals and HashCode
    Java Multithreading, Level 1, Lesson 5
    Under discussion
    Pls helpI can't get past the second and the last requirements
    • 09.09.2020
    • 492views
    • 0comments
    0
  • Nsisong Eyo
    Level 2
    Question about the task Implement the print method
    Java Syntax, Level 2, Lesson 1
    Under discussion
    Got if first hand: Let me break it down Public class Solution { public static void main( (String) [] args ); //This was the main method other wise know as function declared. print("Java is easy to learn"); //This was the command which created an object print, though it not a variable so can not be output in system.out.println. so a new
    • 12.09.2020
    • 569views
    • 0comments
    0
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CodeGym CodeGym is an online course for learning Java programming from scratch. This course is a perfect way to master Java for beginners. It contains 1200+ tasks with instant verification and an essential scope of Java fundamentals theory. To help you succeed in education, we’ve implemented a set of motivational features: quizzes, coding projects, content about efficient learning, and a Java developer’s career.
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