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  • Jeevan Singh
    Level 3
    Question about the task Our first converter!
    Java Syntax, Level 2, Lesson 2
    Resolved
    not implicty take value package com.codegym.task.task01.task0130; /* Our first converter! */ public class Solution { public static void main(String[] args) { System.out.println(convertCelsiusToFahrenheit(41)); } public static double convertCelsiusToFahrenheit(int celsius) { double TF=
    • 21.08.2018
    • 2754views
    • 8comments
    0
  • Evan
    Level 7
    Seattle
    Question about the task Minimum of three numbers
    Java Syntax, Level 2, Lesson 8
    Under discussion
    PLEASE HELP!!!I don't understand what is wrong with my code. I believe the code itself is correct but i keep getting an error saying "return statement" or something like that...
    • 10.04.2020
    • 806views
    • 2comments
    0
  • Ailin
    Level 3
    Saint Louis
    Question about the task Snake (Part 1/20)
    Games, Level 0, Lesson 1
    Under discussion
    Won't compileWhat is wrong?!
    • 24.01.2020
    • 1050views
    • 2comments
    1
  • Jack
    Level 4
    Yerevan
    Question about the task Even to the moon!
    Java Syntax, Level 2, Lesson 8
    Under discussion
    i can't understandTBH i read he lecture 3 times but still didn't understand anyway to solve these programmes. almost every programme i use help. i know its a little wrong but then again if someone takes their time to explain it to me i'll be very thankful.
    • 07.04.2020
    • 903views
    • 7comments
    0
  • Fadi AlSaidi
    Level 13
    Carrollton
    Question about the task Software update
    Java Syntax, Level 8, Lesson 11
    Resolved
    Can't verify even though running the solution yields the correct answer.I keep failing the last condition "The program should display the family's last name based on the entered city" even though running the program works.what am i doing wrong?
    • 12.01.2019
    • 2030views
    • 2comments
    3
  • hidden #10550504
    Level 10
    Question about the task Sorting three numbers
    Java Syntax, Level 4, Lesson 6
    Resolved
    Can I use the loop in this task? where the mistake in my code?Please help! Thank you
    • 07.04.2020
    • 1030views
    • 7comments
    0
  • Jakhongir Ruziev
    Level 23
    Tashkent
    Question about the task Longest sequence
    Java Syntax, Level 8, Lesson 6
    Resolved
    Can someone help me figure what am I missing here. It says: "Be sure that the length of the longest sequence is calculated correctly when it is located at the end of the list of entered numbers". But when I do so it is calculating correctlyLongest sequence
    • 10.04.2020
    • 826views
    • 2comments
    0
  • hemant
    Level 8
    prayagraj
    Question about the task We don't need repeats
    Java Syntax, Level 8, Lesson 8
    Under discussion
    fourth requirement not met!!what to do..please helpwhere is the problem
    • 09.04.2020
    • 1048views
    • 2comments
    0
  • Michał Pawłowicz
    Level 18
    Under discussion
    Intellj 2020.1Will the plugin still work, if I update my IDE ?
    • 09.04.2020
    • 721views
    • 2comments
    0
  • Iliri Cani
    Level 37
    Tirana
    Question about the task Thread priorities
    Java Multithreading, Level 8, Lesson 6
    Under discussion
    Need helpI get the same output but still wont verify
    • 28.08.2019
    • 1159views
    • 3comments
    0
  • yz
    Level 37
    Jakarta
    Question about the task List to Map
    Java Collections, Level 5, Lesson 8
    Resolved
    i need hint guyscan anyone give any hint . thank you!
    • 09.04.2020
    • 1087views
    • 4comments
    0
  • Pablo Souza
    Level 22
    Brisbane
    Question about the task Who's that smarty?
    Java Core, Level 3, Lesson 2
    Under discussion
    Where are the girl and the man?Huh?? The question talks about SmartGirl and Clever man but there are no such classes in the code. I completed it following the instructions but it made zero sense lol
    • 07.04.2020
    • 865views
    • 1comment
    0
  • Зоран Јањић
    Level 8
    Teslic
    Question about the task Streets and houses
    Java Syntax, Level 7, Lesson 4
    Archived
    Any tips? package com.codegym.task.task07.task0706; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* Streets and houses */ public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedR
    • 02.11.2019
    • 1302views
    • 2comments
    0
  • Art
    Level 13
    Chisinau
    Question about the task Streets and houses
    Java Syntax, Level 7, Lesson 4
    Archived
    Whats the problem here? -,-Whats the problem with this code? Thanks!
    • 25.02.2020
    • 1010views
    • 2comments
    0
  • Chris Hilborne
    Level 26
    Sanlucar de Barrameda
    Question about the task Sorting even numbers from a file
    Java Core, Level 3, Lesson 11
    Under discussion
    I struggled with this task a lot before giving up...Why does this task insist on FileInputStream? After doing a quick Google search it became patently obviously that most people use scanner to read integers for a file - I did it this way and it seemed to work. But I'll never know for sure because the task insists on using FileInputStream instead.
    • 09.04.2020
    • 871views
    • 1comment
    0
  • Daniel L. Tovar
    Level 9
    Question about the task StringHelper class
    Java Syntax, Level 6, Lesson 8
    Under discussion
    Help me, please.Can anybody help me? I've got no clue about what I have to do here and I've been trying to solve this since yesterday
    • 09.04.2020
    • 1020views
    • 1comment
    0
  • LucGar
    Level 22
    Bilbao
    Question about the task Factorial
    Java Core, Level 5, Lesson 12
    Resolved
    Why?i think i try everything, what is the problem?
    • 09.04.2020
    • 937views
    • 4comments
    0
  • John
    Level 27
    Washington DC
    Question about the task Factorial
    Java Core, Level 5, Lesson 12
    Resolved
    infinite loop?I keep getting a notification that there is an infinite loop in my code...I'm not seeing it.
    • 31.10.2019
    • 1578views
    • 4comments
    2
  • An Gelo
    Level 18
    Cebu
    Question about the task Plan to conquer the world
    Java Syntax, Level 3, Lesson 8
    Resolved
    the last requirements which is the text does not match.I compiled the program and it has the correct output and match the text requirements but still error String name = reader.readLine(); String number = reader.readLine(); System.out.print(name+" will capture the world in "+number+" years. Mwa-ha-ha!"); output should be like this:Kev
    • 03.08.2018
    • 3166views
    • 8comments
    1
  • - FniJnn -
    Level 33
    Paris
    Question about the task Weird bugs O_o
    Java Multithreading, Level 9, Lesson 7
    Resolved
    I fixed the first bug, i don't understand what to doWeird bugs O_o Fix 2 bugs: 1) an exception occurs 2) the program becomes unresponsive Make minimal changes. Requirements: 1. The startCreatingMessages() method must add 100000 elements to messageQueue without hanging. 2. Fix the bug in the line "messageQueue.drainTo(messageQueue, MAX_BATCH_SIZE);"
    • 25.03.2020
    • 1330views
    • 3comments
    0
  • BlueJavaBanana
    Level 37
    Question about the task Task about algorithms
    Java Syntax, Level 5, Lesson 12
    Resolved
    This bloody thing works but isn't passing the auto check. What have I misunderstood?Please see solution - it have checked this with all numbers including the supplied ones for the test and it work but is still failing?
    • 09.04.2020
    • 1001views
    • 4comments
    0
  • Liliane Top
    Level 17
    Amsterdam
    Question about the task Countdown at the races
    Java Core, Level 6, Lesson 10
    Resolved
    How does it work in detail?Can anybody refer me to a better explanation? I tried many things but do not understand the logic behind multi threads. I reread the example several times but can't find out how it actually works in details. My first question is: 1) Why does it seem that I created an infinite loop while I do get ou
    • 05.04.2020
    • 1232views
    • 2comments
    1
  • Richard Herrera
    Level 3
    Tampa
    Question about the task Parenthetical brainteaser
    Java Syntax, Level 3, Lesson 4
    Under discussion
    i need help with 382cant figure how it work im trying. any help would be appreciated
    • 09.04.2020
    • 1100views
    • 1comment
    0
  • Michał Pawłowicz
    Level 18
    Question about the task Shuffled just in time
    Java Syntax, Level 7, Lesson 12
    Under discussion
    What is actually wrong with my code?Output satisfies the requirements, but it is not enough to pass the tasks. I will be grateful for any sort of help.
    • 07.04.2020
    • 1027views
    • 3comments
    2
  • Djole
    Level 41
    Belgrade
    Question about the task HTML Editor (part 19)
    Java Multithreading, Level 8, Lesson 15
    Resolved
    If an event with the "Save as..." command is ...public void actionPerformed(ActionEvent actionEvent) { String s = actionEvent.getActionCommand(); switch (s) { case "New": controller.createNewDocument(); break; case "Open": controller.openDocument(); break
    • 16.05.2019
    • 1391views
    • 1comment
    0
  • Ivan
    Level 31
    Podol'sk
    Question about the task 2048 (part 12)
    Java Multithreading, Level 10, Lesson 15
    Under discussion
    I don’t understand where the error is here?the first check point does not pass
    • 05.08.2019
    • 1377views
    • 3comments
    0
  • Wojtek
    Level 23
    Solec-Zdroj
    Question about the task AmigoOutputStream
    Java Core, Level 8, Lesson 8
    Under discussion
    can you explain me how to resolve this task?need help
    • 13.03.2019
    • 1934views
    • 9comments
    0
  • Björn
    Level 1
    Aachen
    Question about the task In decreasing order
    Java Syntax, Level 7, Lesson 12
    Under discussion
    sorting just the first half of the array - why that?input: 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 output: 10 10 9 9 8 8 7 7 6 6 6 6 7 7 8 8 9 9 10 10 Any ideas why it is just sorting the first half? if I output the memArray before the for loop, it shows me the correct order. What is going wrong when i am copying memArray to array? for (int i
    • 09.04.2020
    • 876views
    • 1comment
    0
  • Pawel
    Level 22
    Austin, TX
    Question about the task Task about algorithms
    Java Syntax, Level 9, Lesson 11
    Resolved
    sorting words - don't pass but the output is correctcould someone check what's wrong with this code? input examples which give incorrect output will be enough :)
    • 27.03.2020
    • 937views
    • 2comments
    1
  • Diana Pettit
    Level 4
    Mobile
    Question about the task Pets need people
    Java Syntax, Level 2, Lesson 5
    Resolved
    What could be wrong?I did the code. I even consulted other questions and I can't figure out why it's not accepting this. What am I missing?
    • 05.01.2020
    • 1521views
    • 5comments
    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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