Page 52 | CodeGym online Java course - Help

Angel Stefan
Level 23
Sibiu
Question about the task Different methods for different types
Java Core, Level 5, Lesson 12
Resolved
I can't call print(String s)I don't understand how to put the code to be able to call print(String ) after 4 hours of work, any hint? Tk you!
05.01.2022
381views
1comment
0
Dan Ursu
Level 27
Question about the task Iterating through a file tree
Java Collections, Level 1, Lesson 2
Archived
I cant pass the 1 condition, help please package com.codegym.task.task31.task3101; /* Iterating through a file tree */ import java.io.*; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.TreeMap; /*** * Listar todos los ficheros de un directorio y de sus subdirectorios */ public class Solutio
04.01.2022
385views
2comments
0
Константин Савченко
Level 25
Ukraine
Question about the task Binary encoding
Java Syntax, Level 10, Lesson 8
Under discussion
What is wrong?I have this in return. return "0000".substring(binaryNumber.length() % 4) + binaryNumber In terminal, I have response: In Unicode, the character C is 67, but in binary it is 01000011 In Unicode, the character o is 111, but in binary it is 01101111 In Unicode, the character d is 100, but in bina
30.12.2021
694views
3comments
0
Константин Савченко
Level 25
Ukraine
Question about the task StringTokenizer
Java Syntax, Level 9, Lesson 6
Under discussion
Explain me please I should return String[] from method. I return it, but main method should return {"java", "util", "stream"} . Why it returns [java, util, stream];?
30.12.2021
548views
4comments
0
Neha Anjum
Level 6
Hyderabad
Question about the task Minimum of four numbers
Java Syntax, Level 2, Lesson 8
Resolved
I verified my solution....-20 // correct -40 // correct -30 // correct 40 // incorrect !!!....What do I do..? Please Help..!!! package com.codegym.task.task02.task0217; /* Minimum of four numbers */ public class Solution { public static int min(int a, int b, int c, int d) { min(a,b); if(c<=a && c<=b && c<=d) return c; else return d; } public s
13.09.2018
2302views
6comments
0
Gellert Varga
Level 23
Szekesfehervar
Resolved
What is the correct coding of the @Override toString() method?Suppose we have such a class: public static class Cat { public int age; public int weight; public String name; } In CodeGym tasks, we sometimes get ready toString() methods, usually in this form: @Override public String toString() { return String.fo
02.01.2022
330views
2comments
0
Angel Stefan
Level 23
Sibiu
Question about the task OOP: Fix inheritance problems
Java Core, Level 5, Lesson 2
Resolved
I can' t pass the last condition I need a hint, tk you! What is that i don't see?
03.01.2022
572views
3comments
0
Szymon Pawlikowski
Level 19
Question about the task This age doesn't work for me…
Java Syntax, Level 3, Lesson 4
Under discussion
How is it possible that we can create instance of static class?!Hello, I have done task, but I don't understand how is it possible that we create instance of static class. I thought that static class doesn't allow to create its' instance. Could someone explain it to me?
29.12.2021
536views
4comments
0
public enum WaysToDie
Level 23
Denver
Question about the task Correct order
Java Syntax, Level 7, Lesson 2
Resolved
What am I missing.I have completed the requirements, but it still fails. I don't know what I have missed. I would return the new array if the assignment would let me do such a thing but I have to change the original array and that is what I believe I have done. I believe it may be the commas after the last element w
18.12.2021
620views
4comments
0
Michael Brimage
Level 19
Washington D.C.
Question about the task Default values
Java Core, Level 5, Lesson 9
Under discussion
I dont unstand why..I dont understand why I'm required to create a new solution object. The lesson does not really explain this very well, in my opinion. Can someone please explain this to me?
17.04.2020
1138views
2comments
0
LucGar
Level 22
Bilbao
Question about the task OOP: Method overloading - Eliminating the superfluous
Java Core, Level 5, Lesson 4
Resolved
cuestion Why the method with byte, not work?
06.04.2020
822views
3comments
0
public enum WaysToDie
Level 23
Denver
Question about the task Let's talk music
Java Core, Level 6, Lesson 3
Under discussion
Need advice So I tried using Date.compareTo * 1000 to get the milliseconds. This, my current implementation, also works but continues to fail the test.
31.12.2021
463views
1comment
0
Gellert Varga
Level 23
Szekesfehervar
Resolved
What kind of strange class structure is this? public class MyClass { public static void main(String[] args) { MyClass myC = new MyClass(); innerClass inC = myC.new innerClass("inner"); // innerClass inC2 = new innerClass("in"); = ERROR // innerClass inC3 = MyClass.new innerClass("inner"); = ERROR
23.12.2021
571views
13comments
0
public enum WaysToDie
Level 23
Denver
Question about the task Factorial
Java Core, Level 5, Lesson 12
Under discussion
I checked the output and everything.My solution seems to return and print the correct number regardless of test case, yet it still fails testing.
31.12.2021
548views
3comments
0
Lawson
Level 29
Lagos
Question about the task Controlling body weight
Java Syntax, Level 6, Lesson 8
Resolved
pls help I'm short of ideas concerning the 3rd and fourth requirements
02.08.2020
842views
4comments
0
Gellert Varga
Level 23
Szekesfehervar
Question about the task Number algorithms
Java Core, Level 10, Lesson 10
Resolved
Does the Math.pow(x, y) method give an inaccurate result? - and the BigInteger class public class ArmstsrongNumberExample { public static long sum = 0; //method to check if the number is Armstrong or not static boolean isArmstrong(long n) { long temp, digits=0, last=0; temp = n; /
26.12.2021
913views
9comments
0
Asia
Level 19
Bydgoszcz
Question about the task Task No. 6 about integer type conversions
Java Syntax, Level 10, Lesson 4
Under discussion
Float f Wait what? float f = (short) 0.50 f; The result is 0.0 So..... float 0.50 gets casted to short so we cut the fractional part and get 0, and then cast it again to float and get 0.0?? that is crazy
01.06.2021
655views
2comments
2
Jason
Level 26
Rancho Cucamonga
Question about the task New functionality!
Java Multithreading, Level 5, Lesson 2
Under discussion
it works but not passing last condition so not sure what I need to do to pass the last condition was hoping someone had some insight on the subject. Thanks in advance : )
16.03.2020
983views
2comments
0
Stephen Haokip
Level 13
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Under discussion
line 57 of the correct solution how did they find out if the passed string is a number or not from the length. or is there a way to determine whether a string is a number from the length of the string. i m totally confused.
30.12.2021
698views
1comment
0
Anonymous #10882853
Level 8
France
New
is 0 the best number :)hello world !🤣
29.12.2021
335views
0comments
0
crispr_cast9
Level 9
Saint Petersburg
Question about the task Ascending numbers
Java Syntax, Level 6, Lesson 11
Under discussion
Why conditions 2 and 3 are not met?2 condition: The program should display 5 numbers, each on a new line. 3 condition: The output must contain the same numbers that were entered (order is not important).
26.12.2021
695views
9comments
0
Andre M.
Level 4
Glenn Dale
Question about the task Positive number
Java Syntax, Level 3, Lesson 10
Under discussion
How to count the number of true results?The task calls for a number of positive numbers to be returned. I created strings within if statements to answer the problem. It has not worked. Is there a way in Java to count only the number of "true" values? Am I overthinking this task?
29.12.2021
1009views
2comments
0
Dmitri
Level 22
Seversk
Question about the task Task No. 3 about integer type conversions
Java Syntax, Level 10, Lesson 4
Under discussion
Does anybody knows why?Actually the print out is 0 here, but why!?
15.11.2020
516views
6comments
2
shovan
Level 22
Kolkata
Question about the task Task No. 3 about integer type conversions
Java Syntax, Level 10, Lesson 4
Resolved
i cant understand what should i do? package com.codegym.task.task10.task1003; /* Task No. 3 about integer type conversions */ public class Solution { public static void main(String[] args) { int f = (int) 128.50; int i = (int) f; int b = (int) (i + f); System.out.println((float)b); } }
23.05.2019
2383views
3comments
0
Gellert Varga
Level 23
Szekesfehervar
Resolved
Merry Christmas to all learners and all voluntary helpers!:)no question here and no code:)
24.12.2021
324views
0comments
0
public enum WaysToDie
Level 23
Denver
Question about the task Singleton
Java Core, Level 4, Lesson 8
Under discussion
Where did I go wrong?I do not know what I did wrong here. Seems simple enough.
27.12.2021
421views
4comments
0
Alexandre Desbois
Level 10
Chamarandes-Choignes
Question about the task Greater than 10? You're not a good fit for us
Java Syntax, Level 8, Lesson 8
Resolved
Why the numbers superior to 10 are displayed in my code?Hello, I don't understand why my method is not working well. public static HashSet removeAllNumbersGreaterThan10(HashSet set) { HashSet set2 = new HashSet<>(); for(Integer element : set){ if(element <= 10){ set2.add(element); }
26.12.2021
778views
3comments
0
Alexandre Desbois
Level 10
Chamarandes-Choignes
Question about the task Changing functionality
Java Syntax, Level 7, Lesson 12
Resolved
My program compile but no output I don't understand why there is no output with my program. Can you help me?
26.12.2021
561views
5comments
0
public enum WaysToDie
Level 23
Denver
Question about the task GCD
Java Core, Level 4, Lesson 8
Resolved
Exception problem I don't know what I am doing wrong, it seems like if the numbers end up being negative that the program will throw the exception. But I am still failing the tests.
27.12.2021
368views
1comment
0
HeavenlyDestroyer
Level 41
Yekaterinburg
Question about the task Number algorithms
Java Core, Level 10, Lesson 10
Under discussion
Any hints?I don't really understand why it is not verifying anything. It is compiling all right, and the output seems correct.
06.12.2021
515views
4comments
0

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