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  • All questions
  • Vo
    Level 41
    Sofia
    Resolved
    Debug and Run buttons are grayed out in IntelliJ IDEAHello, The buttons Debug and Run are grayed out in my IntelliJ IDEA. This only occurs in the codegym project, I don't have such issues in other projects. I am using linux mint, I can verify tests, but cannot debug and run, in order to check my code before verification. If you had such issues, plea
    • 09.09.2020
    • 1804views
    • 3comments
    0
  • Andrew
    Level 29
    Seattle
    Question about the task Finding data inside a file
    Java Core, Level 8, Lesson 11
    Resolved
    Tried the BufferedReader route to make sure I was getting the entire line but it won't verify.Works in my test file but who knows how accurate that is.
    • 20.02.2019
    • 1801views
    • 13comments
    0
  • devi
    Level 2
    Melbourne
    Under discussion
    how to do those tasks?help me,I m confused, what should I do in a task??plzz,help me
    • 01.07.2020
    • 364views
    • 2comments
    0
  • Lawson
    Level 29
    Lagos
    Question about the task Snake (part 10)
    Java Multithreading, Level 2, Lesson 18
    Under discussion
    Helppls the first 3 requirements are not working I have created a new object, initialize the game field and set the direction to down... what else do they want
    • 14.09.2020
    • 409views
    • 0comments
    0
  • Ivan Duka
    Level 22
    Winnipeg
    Question about the task CRUD 2
    Java Core, Level 7, Lesson 10
    Resolved
    What's wrong with my SWITCH statement?Hey friends, The code is working, I tested it with all possible arguments. However, I cannot pass the last condition, something is wrong with my switch statement and I cannot get what exactly is wrong. Additional information is displayed on this error: "Be sure that the main method has a switch stat
    • 18.04.2019
    • 1553views
    • 2comments
    2
  • Russell
    Level 9
    Galmpton, Brixham
    Question about the task Minesweeper (Part 10/16)
    Games, Level 0, Lesson 0
    Resolved
    unable to display boardTrying to run game to check wether the board will display, but i'm getting nothing. The program compiles ok, but then gets stuck before the board appears. So it's waiting for an input that never appears. Any ideas?
    • 13.09.2020
    • 409views
    • 1comment
    0
  • Maxb
    Level 7
    Yonkers
    Question about the task Task about algorithms
    Java Syntax, Level 5, Lesson 12
    Under discussion
    Am I not fully understand the requirements of this question? I dont understand. Are all the numbers entered as 9 8 7 6, etc. ? What's the grand idea of the question? What is it suppose to be demonstrating?
    • 13.09.2020
    • 492views
    • 4comments
    0
  • 143_Ritik Awachat
    Level 4
    Question about the task Where does a Person come from?
    Java Syntax, Level 2, Lesson 2
    Under discussion
    Guys help iam stuck here Not understanding where iam wrong anyone help me? public class Solution {
    • 14.09.2020
    • 824views
    • 3comments
    0
  • Henrique
    Level 41
    São Paulo
    Question about the task ABCs
    Java Core, Level 8, Lesson 11
    Resolved
    "You aren't counting lowercase letters."I really don't understand this one. In my head I did everything right. I even copied the solutions made by others, and it just doesn't verify. Could somebody help me with this one? Thanks!!
    • 18.06.2020
    • 592views
    • 3comments
    0
  • Rich
    Level 23
    San Diego
    Question about the task Let's make the code do something useful!
    Java Syntax, Level 9, Lesson 11
    Resolved
    third requirement... :-\looks good to me but no dice. little hint pls
    • 13.09.2020
    • 391views
    • 1comment
    0
  • Russell
    Level 9
    Galmpton, Brixham
    Question about the task Minesweeper (Part 7/16)
    Games, Level 0, Lesson 0
    Resolved
    can't seem to get the board to show up anymore to test.I used ot be able to get the board to show (in ideaj) by right clicking the background and choosing run. that option is no longer available. is anyone able to help please?
    • 27.08.2020
    • 440views
    • 3comments
    0
  • Gustav
    Level 7
    Sjoebo
    Question about the task One large array and two small ones
    Java Syntax, Level 7, Lesson 4
    Resolved
    This works for me but last condition not satisfied. Not allowed to use Arrays.copyOfRange? public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int[] bigNumbers = new int[20]; int[] smallNumbers1 = new int[10]; int[] smallNumbers2 = new int[10]; for (int i = 0; i &
    • 13.09.2020
    • 439views
    • 2comments
    0
  • Satya Vath
    Level 31
    Vijayawada
    Question about the task Two in one
    Java Core, Level 8, Lesson 11
    Under discussion
    Please HelpThanks In Advance
    • 19.04.2019
    • 1154views
    • 2comments
    0
  • Slawomir I.
    Level 15
    Warsaw
    Question about the task User, loser, coder and programmer
    Java Core, Level 4, Lesson 8
    Under discussion
    Could anyone can clarify it why do I need to cast person to Person.xxx to call method? It works but Intellij done that for me and I don't know why ;/ public static void doWork(Person person) { if(person instanceof Person.User){ ((Person.User) person).live(); } else if(person instanceof Person.Loser){ ((Person.Loser) person).doNothing(); } else if(person instanceof Person.Coder
    • 13.09.2020
    • 373views
    • 1comment
    0
  • andy 6473
    Level 9
    Bangalore
    Question about the task Working with dates
    Java Syntax, Level 8, Lesson 11
    Under discussion
    Can some one check what is wrong in the codehelp
    • 31.08.2020
    • 656views
    • 11comments
    0
  • Youngsan
    Level 41
    Seoul
    Question about the task Wine tasting
    Java Core, Level 4, Lesson 8
    Archived
    failed to return "BubblyWine object". Failed step: "The Solution class must implement the getBubblyWine() method, which returns a BubblyWine object." I don't understand why it didn't pass.
    • 06.09.2020
    • 635views
    • 2comments
    0
  • bamughamye patrick
    Level 8
    Paris
    Question about the task The end
    Java Syntax, Level 7, Lesson 12
    Under discussion
    HelpWhat could be the problem here. Failing ti get second last requirement
    • 12.09.2020
    • 638views
    • 2comments
    0
  • Joel Pearce
    Level 22
    Birmingham, UK
    Question about the task Functionality is not enough!
    Java Syntax, Level 10, Lesson 11
    Resolved
    Output correct, but not verifyingI've done a number of iterations of the code below and it works perfectly with every variation of input I use, but it's not verifying. Anyone got any clues?
    • 11.09.2020
    • 560views
    • 5comments
    0
  • Rich
    Level 23
    San Diego
    Question about the task What's today's date?
    Java Syntax, Level 9, Lesson 11
    Resolved
    last conditionright output not meeting last condition. little help pls
    • 12.09.2020
    • 543views
    • 1comment
    0
  • Shadow
    Level 7
    Hogsmead
    Question about the task Getters and setters for the Dog class
    Java Syntax, Level 5, Lesson 5
    Under discussion
    hellppp!!!!what is wrong??
    • 12.09.2020
    • 492views
    • 2comments
    0
  • Chris
    Level 19
    Newark
    Question about the task One large array and two small ones
    Java Syntax, Level 7, Lesson 4
    Resolved
    I have no clue how to solve this one.Can someone show me how to set up the indexes so I can only print the second one? Also, can someone show me how to assign it to read variable(n).
    • 12.09.2020
    • 602views
    • 2comments
    0
  • Peter
    Level 7
    Enschede
    Question about the task Minimum of four numbers
    Java Syntax, Level 2, Lesson 8
    Resolved
    Correct result but still not ok? Below you see my code. It works and I get the correct result but codegym is apparently looking for something different. Could someone give me a hint? Thanks in advance.
    • 12.09.2020
    • 533views
    • 6comments
    0
  • Lawson
    Level 29
    Lagos
    Question about the task Hippodrome (part 15)
    Java Multithreading, Level 1, Lesson 16
    Resolved
    HelpError in the last condition
    • 12.09.2020
    • 478views
    • 4comments
    0
  • varada
    Level 4
    kozhikode
    Question about the task Parenthetical brainteaser
    Java Syntax, Level 3, Lesson 4
    Under discussion
    Can any one plz help mee..wats the problem?? in the my code??Can any one plz help mee..wats the problem?? in the my code??
    • 22.07.2020
    • 824views
    • 3comments
    0
  • Okabe Rintarou
    Level 4
    Question about the task Parenthetical brainteaser
    Java Syntax, Level 3, Lesson 4
    Resolved
    Can someone help me?this solution's answer is 535
    • 12.08.2018
    • 3130views
    • 8comments
    0
  • Rim
    Level 11
    Bucharest
    Question about the task Kind Emma and the summer holidays
    Java Syntax, Level 8, Lesson 8
    Resolved
    The task failed to pass testingthe code pass the run but not the verification i think to convert the Date to a String to could test if the String contains the month. i think it s logical .i dont pass the verification and i dont know where is the fault?
    • 10.09.2020
    • 807views
    • 5comments
    0
  • Chase
    Level 17
    Question about the task Countdown at the races
    Java Core, Level 6, Lesson 10
    Resolved
    I feel like I've tried everything.No matter how hard I try to fix this code it doesn't seem to want to work. I initially read the instructions and did everything like it said then when I clicked verify I am now being told I need to add Thread.sleep(3500); to the main method. I'm not sure how to check the time from the main method.
    • 11.09.2020
    • 447views
    • 2comments
    0
  • Шарох
    Level 12
    Question about the task Currency exchange
    Java Syntax, Level 3, Lesson 3
    Under discussion
    Hello Coders !what should I do with this code ? I think something is confusing.
    • 09.09.2020
    • 592views
    • 2comments
    0
  • Mariam
    Level 9
    Columbus
    Question about the task Remove and insert
    Java Syntax, Level 7, Lesson 6
    Resolved
    It works but Compiler Does not except my code. Please helpIt works but Compiler Does not except my code. Please help
    • 11.09.2020
    • 547views
    • 2comments
    0
  • Mariam
    Level 9
    Columbus
    Question about the task Longest string
    Java Syntax, Level 7, Lesson 6
    Resolved
    It works Perfect but compiler refuses to exept my code. Please why?It works Perfect but compiler refuses to exept my code. Please why?
    • 11.09.2020
    • 540views
    • 4comments
    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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