Page 19 | CodeGym online Java course - Help

Anonymous #11418252
Level 15
Question about the task Path update
Java Syntax, Level 9, Lesson 3
Under discussion
What's wrong with my code?Hello! My solution isn't validate from the compiler. Why? Thanks a lot!
11/11/23
303views
2comments
0
Alana Robinson
Level 4
United States of America
Question about the task School or college
Java Syntax, Level 3, Lesson 4
Under discussion
In this task I keep getting an error message. I'm confused where I should put the curly braces.In this task I keep getting an error message. I'm confused where I should put the curly braces.
5/10/22
971views
3comments
0
Karthik .R
Level 3
India
Question about the task Reading and converting strings
Java Syntax, Level 2, Lesson 8
Under discussion
how to add lines from keyboard??what does that mean?? what is scanner? why to use that??
1/8/23
514views
1comment
0
Evghenii Seremet
Level 41
London
Question about the task HTML Editor (part 13)
Java Multithreading, Level 8, Lesson 15
Resolved
I must be doing something wrong, can someone point what is the issue? thanks code from TextEditMenuListener class: public void menuSelected(MenuEvent menuEvent) { JMenuBar jMenuBar = (JMenuBar) view.getContentPane().getComponent(0); for(int i=2; i<6; i++) { JMenu jMenu = jMenuBar.getMenu(i); for (Component item : jMenu.getMenuCompo
12/24/19
1864views
3comments
1
Dương Tiến Đạt
Level 41
Ha Noi City
Question about the task Plants vs Zombies
Java Multithreading, Level 8, Lesson 10
Resolved
Where to put arriveAndDeregister()?Can someone tell me where to phaser.arriveAndDeregister()? I tried every place possible and still failed. The validator is really racking by brain.
10/10/20
746views
6comments
0
Djole
Level 41
Belgrade
Question about the task Mastering switch
Java Multithreading, Level 8, Lesson 2
Resolved
output matches condition, so where is the catch? public static void switchTest(Enum obj) { // Add your code here String s = obj.getClass().getSimpleName(); switch(s){ case "E1": System.out.println(String.format("It's %s.%s", s, obj.name())); break; case "E2":
5/14/19
1860views
3comments
2
Jesú
Level 14
Madrid
Resolved
I don't understand this about Strings and equality.I think I found a contradiction. In JavaSyntaxZero Level 3 Lecture 6, this is said about strings: However, in the previous lecture, it shows two strings with the exact same text, having different references that point to memory: Could somebody explain why the strings with identical text have diff
11/7/23
696views
3comments
0
Jonas
Level 41
Vilnius
Question about the task Archiver (part 17)
Java Multithreading, Level 7, Lesson 15
Under discussion
Please help It says: "The method adds new files to the archive incorrectly." I don't know how to do it
5/31/20
825views
3comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Archiver (part 15)
Java Multithreading, Level 7, Lesson 15
Resolved
Extraction code not passing validation I felt a little like shooting in the dark on this task since we haven't been given an example of code to extract a file from a Zip yet. But I assumed the copyData method would be used for that. I googled a few options and it seemed they used code similar to copyData with a few other bits. I tried to
4/24/22
1042views
5comments
0
sagar thakur
Level 6
CodeGym University in India
Question about the task Filled rectangle
Java Syntax, Level 4, Lesson 3
Under discussion
This is a perfectly written code and the output is correct when i use intelliJ still here it shows my answer is wrong public static void main(String[] args) { int n = 0; while (n < 5) { int m = 0; while (m < 10) { System.out.print("Q"); m++; } System.out.println(); n++;
3/8/23
431views
1comment
0
Attila Ágoston
Level 5
Question about the task Combining arrays
Java Syntax, Level 5, Lesson 1
Under discussion
I need help.I wrote this code and it work as this task insists, but it's not accept as a solution. What's wrong whit my code? resultArray = (firstArray); for (int i = 0; i < resultArray.length; i++) { System.out.print(resultArray[i] + ", "); } resultArray = (secondArray)
9/7/23
338views
3comments
0
Harshit Garg
Level 34
Chandigarh
Question about the task Next month, please
Java Syntax, Level 14, Lesson 6
Resolved
pls see this .... I think the requirements are fulfilled, it doesn't understand this.
11/5/23
286views
1comment
0
Harshit Garg
Level 34
Chandigarh
Question about the task From if to switch
Java Syntax, Level 14, Lesson 7
Resolved
wheres the error pls tell
11/5/23
314views
1comment
0
matemate123
Level 50
Kraków
Question about the task Log parser (part 1)
Java Collections, Level 7, Lesson 15
Resolved
My results seems correct but Validator don't like it.I need some different eyes to look into my code. I don't know where is problem. I think is not bad but still almost all red. Maybe I don't get some condition? Please help!
11/4/23
338views
2comments
0
Jesú
Level 14
Madrid
Resolved
I'm confused about operator precedence I'm confused about a table showing operator precedence. The table is found in this CodeGym article Why does expr++ have more precedence than ++expr? I thought that ++expr increments first and foremost, whereas expr++ updates its value AFTER being used in the operation. Does anyone understand this?
11/4/23
594views
6comments
0
Jurij Thmsn
Level 29
Flensburg
Question about the task Determining locking order
Java Multithreading, Level 7, Lesson 6
Under discussion
Not validating I think the code returns the requested value - I m testing by changing the order of o1 and o2 in the method call here: solution.someMethodWithSynchronizedBlocks(o1, o2); //true solution.someMethodWithSynchronizedBlocks(o2, o1); //false or by changing the order of obj1 and obj2 in the someMethod
1/14/22
679views
2comments
2
Harshit Garg
Level 34
Chandigarh
Question about the task Chasing after types
Java Syntax, Level 13, Lesson 7
Resolved
pls check why doesn't switch work? package en.codegym.task.pro.task12.task1220; import java.util.ArrayList; /* Chasing after types */ public class Solution { public static void main(String[] args) { var elements = new ArrayList<>(); elements.add("Hello"); elements.add(1
11/2/23
418views
5comments
0
Harshit Garg
Level 34
Chandigarh
Question about the task Double curly braces
Java Syntax, Level 13, Lesson 6
Resolved
no compiler error, why wrong?requirement looks like not programmed correctly..
10/29/23
324views
2comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Snake (Part 5/20)
Games, Level 0, Lesson 1
Under discussion
Just want to ask clarification on where classes are declared I don't have a problem with code I'm working on, I just want to ask a question about something regarding creating classes. In some cases, like this project, we create classes in separate .java files (apple.java, snake.java, etc). But some of the other tasks we have done previously have us create mul
7/23/21
949views
1comment
1
Jurij Thmsn
Level 29
Flensburg
Question about the task No goofing off
Java Multithreading, Level 5, Lesson 7
Resolved
NullPointer Exception I already looked up the Right Solution - so I already know how to solve the task. I still don't understand why I get a NullPointerException if I write the run() method like this: public class TaskManipulator implements Runnable, CustomThreadManipulator{ private Thread thread; @Override
11/2/21
842views
14comments
1
Van Ha
Level 41
Bodegraven
Question about the task Comments inside XML
Java Collections, Level 3, Lesson 10
Resolved
No clue Don't have any idea how to solve this further, some hints would be appreciated.
3/27/20
1676views
10comments
0
K J LAKSHMI PRASAD
Level 4
kalasalingam University
Question about the task Sum of numbers not divisible by 3
Java Syntax, Level 4, Lesson 4
Under discussion
printing sum of numbers except divisible by 3 public class Solution { public static void main(String[] args) { //write your code h int i=0; int sum=0; while(i<100){ i++; if(i%3==0){ continue; } sum=sum+i;
10/28/23
401views
1comment
0
Jonas
Level 41
Vilnius
Question about the task Caching proxy
Java Collections, Level 7, Lesson 6
Resolved
Please, only one condition How can you pass 7th and 8th conditions at the same time? They're opposite for each other. If you find element in cache, you cannot search for the element in storage(Condition 6), but if you don't search you cannot pass condition 7. Please help, I'm confused.....
3/26/20
1364views
3comments
0
Kyle Akuya (Wicked98)
Level 18
United States of America
Question about the task Binary to hexadecimal converter
Java Syntax, Level 10, Lesson 2
Under discussion
Right Output but not passing task requirements The output I get from this code is correct, but it isn't passing the task requirements (specifically the first two). Why do I keep on having this issue? Please help.
10/27/23
326views
2comments
0
FelixUjo
Level 35
Gijón
Question about the task Splitting a file
Java Core, Level 8, Lesson 5
Resolved
I don't think I understand what void write(byte[] buff,int form, int count) is doing.I don't think I understand what void write(byte[] buff,int form, int count) is doing.
10/24/23
395views
2comments
0
koko
Level 1
Under discussion
efp hack pubg hack efp
10/26/23
267views
0comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Knowledge is power!
Java Multithreading, Level 4, Lesson 9
Under discussion
I can get it sorting correctly, but I don't understand the Formatting part at all I vaguely understand what ChoiceFormat does (it says that it's meant for controlling how singular/plurals work, but CG is using it differently here). I understand that there are two arrays, filelimits and filepart, and that the indexes of the former match up with the indexes in the latter. For examp
1/14/22
1122views
3comments
1
- FniJnn -
Level 33
Paris
Question about the task Refactoring, anonymous classes
Java Multithreading, Level 4, Lesson 9
Resolved
How to create a new object of an anonymous class ?Everything is in the title, thanks :)
1/27/20
1547views
4comments
2
Bertalan
Level 10
Question about the task Inheriting methods
Java Syntax, Level 8, Lesson 7
Under discussion
Buggy tasks?I'm maybe doing something wrong, but unless I exit this task and reenter it, it just shows the same class in every file, even for the default starting point. Same with the other inheritance task before this. i just pushed show correct solution in the end and published that
10/22/23
323views
0comments
0
Week Kee
Level 1
Under discussion
Gui java write code in java GUI intellij swing for school management system project
10/16/23
372views
1comment
0

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