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  • All questions
  • Hansha
    Level 7
    Question about the task Triangle
    Java Syntax, Level 3, Lesson 3
    Under discussion
    Error when verifyingWhen I press verifiy it just says UNKNOWN-ERROR. Help package en.codegym.task.pro.task03.task0306; import java.util.Scanner; /* Triangle */ public class Solution { private static final String TRIANGLE_EXISTS = "It's a triangle"; private static final String TRIANGLE_DOES_NOT_EXIST = "I
    • 11.06.2023
    • 495views
    • 3comments
    0
  • FelixUjo
    Level 35
    Gijón
    Question about the task Exception when working with numbers
    Java Syntax, Level 15, Lesson 6
    Under discussion
    I don't know what they want me to do.I don't know what they want me to do.
    • 12.08.2023
    • 184views
    • 1comment
    0
  • FelixUjo
    Level 35
    Gijón
    Question about the task Catching checked exceptions
    Java Syntax, Level 15, Lesson 8
    Resolved
    I think I have tried all the optionsI think I have tried all the options.
    • 13.08.2023
    • 303views
    • 2comments
    0
  • Harshit Garg
    Level 23
    Chandigarh
    New
    bitwise shiftwhy are there 2 zeros in left rather than just one? pls tell. 0b00000011 << 20 0b001100000000000000000000
    • 13.08.2023
    • 163views
    • 0comments
    0
  • Павел Артеменко
    Level 41
    Krasnodar
    Question about the task 2048 (part 6)
    Java Multithreading, Level 10, Lesson 15
    Resolved
    Bugged?Consolidate and Merge - it's movement to the left, if on any row they succeeded, then there was a movement and we need to add new tile. Or am I wrong somewhere?
    • 28.05.2019
    • 1619views
    • 4comments
    0
  • Amantai
    Level 47
    Shymkent
    Question about the task Make a word chain
    Java Multithreading, Level 2, Lesson 9
    Resolved
    What's not to like about CG?Contents of input file: Okinawa Denver RioDeJaneiro Washington Auckland Kalamazoo Norfolk Console output: Washington Norfolk Kalamazoo Okinawa Auckland Denver RioDeJaneiro
    • 09.08.2023
    • 229views
    • 4comments
    0
  • Toms Stašulāns
    Level 24
    Question about the task Minimum or maximum
    Java Syntax, Level 13, Lesson 2
    Under discussion
    Why is this not accepted?Why is this not accepted?
    • 09.08.2023
    • 224views
    • 3comments
    0
  • Niladri pradhan
    Level 33
    Mumbai
    Question about the task Derive a specific number
    Java Multithreading, Level 10, Lesson 8
    Under discussion
    I have solved it but wants to improve my solution .If have any suggestion please recommend. Here is my solution as codegym is not allowing to attach my solution public void createExpression(int number) { String num = convertToTerinanry(number); String perNum = convertToPrefectTerninary(num); String result = String.valueOf(
    • 22.01.2020
    • 979views
    • 2comments
    0
  • Reyaz Ahmad Bhat
    Level 4
    Anantnag Jammu And Kashmir
    Question about the task Let's compare strings
    Java Syntax, Level 3, Lesson 9
    Under discussion
    Solution public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String a = sc.nextLine(); String b = sc.nextLine(); if(a.equals(b) == true) { System.out.println("The strings are the same"); } else{
    • 28.02.2023
    • 270views
    • 2comments
    0
  • Harshit Garg
    Level 23
    Chandigarh
    Question about the task Remove duplicate strings
    Java Syntax, Level 6, Lesson 4
    Resolved
    pls helpThe program runs correctly with the correct output. Cant find any mistakes.. The solution given is: but mine is similar package en.codegym.task.pro.task05.task0508; import java.util.Scanner; /* Remove duplicate strings */ public class Solution { public static String[] strings; public st
    • 07.08.2023
    • 467views
    • 4comments
    0
  • Amantai
    Level 47
    Shymkent
    Question about the task Build a WHERE query
    Java Multithreading, Level 2, Lesson 9
    Resolved
    Please, tell me where I misunderstand the condition of this task?Here are 4 inputs along with their results: Option 1: {country=United States, city=Los Angeles, name=Johnson, age=33} name = 'Johnson' and country = 'United States' and city = 'Los Angeles' and age = '33' Option 2: {country=United States, city=Los Angeles, name=null, age=33} country = 'United State
    • 07.08.2023
    • 259views
    • 3comments
    0
  • Amantai
    Level 47
    Shymkent
    Question about the task Inverted words
    Java Multithreading, Level 2, Lesson 9
    Resolved
    Help is neededFile contents: rat tar tart a a tot tot tot level code is CodeGym si level Console output: rat tar a a tot tot level level is si What I did wrong?
    • 06.08.2023
    • 219views
    • 5comments
    0
  • Harshit Garg
    Level 23
    Chandigarh
    Question about the task Remove duplicate strings
    Java Syntax, Level 6, Lesson 4
    Resolved
    There is no mistake!program runs fine, but on verifying, the last requirement is a red cross. pls reply even if you have simplest idea why this is happening..
    • 06.08.2023
    • 210views
    • 3comments
    0
  • priyantha s
    Level 8
    Question about the task Combining arrays
    Java Syntax, Level 6, Lesson 2
    Under discussion
    i write this code and it worked but it say its wrong resultArray = new int[firstArray.length + secondArray.length]; int y =10; for (int i = 0; i < firstArray.length; i++){ resultArray[i] =firstArray[i]; } for (int i = 0; i < secondArray.length; i++){
    • 20.11.2022
    • 491views
    • 3comments
    1
  • Angel Stefan
    Level 23
    Sibiu
    Question about the task Iterating through a file tree
    Java Collections, Level 1, Lesson 2
    Resolved
    I am stuck!I can't pass the condition no 3 because i don't include files from subdirectorys. Any hint? Tk you!
    • 16.03.2022
    • 700views
    • 5comments
    0
  • PeterC
    Level 28
    France
    Question about the task Is anyone there?
    Java Syntax, Level 6, Lesson 8
    Resolved
    What am I doing wrong?It's a simple task and my solution works fine in the IDE.
    • 25.09.2021
    • 737views
    • 8comments
    0
  • 🤥匹诺曹
    Level 8
    Jinan
    Question about the task Combining arrays
    Java Syntax, Level 6, Lesson 2
    Under discussion
    what is Implement the main(String[]) method in accordance with the task conditions. mean?jesus, where goes wrong in my code? please help
    • 18.09.2022
    • 444views
    • 1comment
    2
  • FelixUjo
    Level 35
    Gijón
    Question about the task Remove all people born in the summer
    Java Syntax, Level 14, Lesson 7
    Under discussion
    Problem with the summer monthsI dn't know if in California the summer months are different.
    • 05.08.2023
    • 218views
    • 2comments
    0
  • Andrew
    Level 29
    Seattle
    Question about the task I LOVE CodeGym!
    Java Multithreading, Level 2, Lesson 7
    Under discussion
    Bugged or wrong?Tried with %s for the last argument too. And tried %n at the end just to make sure. Output: "I LOVE CodeGym!"
    • 05.04.2019
    • 1772views
    • 11comments
    1
  • Harshit Garg
    Level 23
    Chandigarh
    Question about the task Three numbers
    Java Syntax, Level 3, Lesson 5
    Resolved
    I think my output is correct...Then why is it saying
    • 02.08.2023
    • 364views
    • 5comments
    0
  • Harshit Garg
    Level 23
    Chandigarh
    Question about the task Let's take your temperature
    Java Syntax, Level 3, Lesson 5
    Resolved
    What is to be done?how to do without if? ternary?
    • 02.08.2023
    • 222views
    • 2comments
    0
  • Amantai
    Level 47
    Shymkent
    Question about the task Calculating salaries
    Java Core, Level 9, Lesson 11
    Resolved
    Now where is the mistake?File contents: Brown 1.44 Baxter 2.75 Peterson 2 Brown 3.14 Smith 6.6 Baxter 1.35 Peterson 3.1 Brown 2.02 Console output: Baxter 4.1 Peterson 5.1 Brown 6.6 Smith 6.6
    • 19.07.2023
    • 207views
    • 2comments
    0
  • DEEMA
    Level 3
    Under discussion
    Hi guys I need your help Because I am on stuck in level 3 lesson 3 and 4 I don’t understand anything I need videos or anything please 🙏
    • 30.07.2023
    • 209views
    • 4comments
    0
  • Amantai
    Level 47
    Shymkent
    Question about the task Equals and HashCode
    Java Multithreading, Level 1, Lesson 5
    Resolved
    Need adviceIt seems to me that the expressions if (obj == null || getClass() != obj.getClass()) return false; and if (!(obj instanceof Solution)) return false; are equivalent. Is not it?
    • 01.08.2023
    • 492views
    • 4comments
    0
  • DEEMA
    Level 3
    Under discussion
    I need helpHi guys How ca I stop my subscription? Because I can’t learn these days and I don’t want my subscription finishe without learn Please answer me
    • 29.07.2023
    • 199views
    • 3comments
    0
  • Jan Václavík
    Level 3
    Under discussion
    More about variable scopesHey guys, So... I'm stuck on the lesson 4 in level 3. I've read the thing like 20 times over and I still feel like I don't fully understand it. I mean... I feel like I don't even fully understand the structure of Java (Class, object, variables, methods) - is is like a ladder? After that - the
    • 03.07.2023
    • 194views
    • 1comment
    0
  • Anonymous #11313020
    Level 1
    Under discussion
    how to draw flagwhat is method
    • 12.03.2023
    • 285views
    • 1comment
    0
  • hidden #11364598
    Level 5
    Under discussion
    Implementation achievements Hi all! I saw some implementation achievements on the list, but I can't fint the actual tasks themselves. Could anyone point their direction? I'm on the mobile app
    • 30.07.2023
    • 189views
    • 1comment
    0
  • Prachi Jadhav
    Level 6
    CodeGym University in India
    Question about the task Count the number of cats
    Java Syntax, Level 3, Lesson 5
    Under discussion
    Not able to understand this type of questionsnot able to understand the this kind of questions so much confusing it . totally lost it
    • 20.07.2023
    • 303views
    • 4comments
    0
  • Guadalupe Gagnon
    Level 37
    Tampa
    Question about the task Restaurant (part 17)
    Java Multithreading, Level 9, Lesson 15
    Resolved
    Second condition is not verifyingThe task conditions are not really spelled out that well. The first problem is that the task calls for the outputs to be alphabetized, however the example outputs are not. I implemented the second condition exactly as asked, and passed the first one (which is nearly the same). Right now I have all t
    • 24.05.2019
    • 1494views
    • 2comments
    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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