Help with tasks

Hi there, I don't know, perhaps is because my english is a bit rusty but to me the way this task is worded leads to confusion. These are the conditions of the taks: ************************************************************************* StringHelper class In the StringHelper class, implement two s

Could someone explain it to me ?

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

My program work fine. Where is the problem?

I can't solve this... I keep getting " tree.clone can't be overridden"

We have to create a private getAllUsers method in the MainModel class (Step 6). But then we have to also declare this method in the Model interface (Step 8). How can that be? The interface methods cannot be private, and a method implemented from an interface cannot have a different access modifier.

Hey a questions about this challenge: Why there are 2 classes in this challenge? class Solution & class Cat .. I thought there can/should be only 1 class per file or? package com.codegym.task.task05.task0504; /* The Three "Muscateers" */ public class Solution { public static void mai

The code is working. It runs and generates the required answer. According to the example they provided they want the first day of the year to be counted, right? I tried a million different dates and my answer is correct every time. The answer is correct, the logic is correct and the math is correct.

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

Hi, I am not able to pass 3. condition any tips?

I tested with different cases, and my code seems working fine. My sort logic is: name in alphabetical ascending order, if same, then date in descending order, if same, then profit (last-open) in descending order. I can't figure out where is the problem.

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I am a novice programmer so I could be making a big mistake and I just do not see it but this code works for all input scenarios that I have tried and yet the verification still marks it as wrong, any hints would be greatly appreciated.

Seemed to fulfill all the requirements ,but still not passing. Any eagle eyes ?

Hi there, I added the sout on line 11 so that when I run it I can see the results of the increases by the passed-in value I would appreciate it if anyone could tell me why is this wrong? thanks

the cube method takes a and turns it into a= a*a*a so why cant the ninthDegree method take a and return it as a = (cube a) * (cube a) * (cube a) ? instead, it's some random statement that is not even explained how or more importantly why it works.

Why I'm not able to pass the vaildation? This is the comment from my mentor but I'm not able to see my mistake. Be sure that the toDecimal(String) method returns 0 if it receives an empty string or null as input. Some help, please?

Hi there, Is posible that there's a bug in the proposed algorithm for converting an octal number to decimal?

I'm having trouble completing the third requirement to double the number. I've tried (n * 2) and (n + n) both which double the number when I input a number. But i'm still missing something and failing the task. Any advice? Thank you in advance.

If we are talking about "users" folder (see attached pic), then what does the term means: "all of its subdirectories" ? A) admin, staff, student; or B) admin, staff, student, jon, steve ?

public static void main (String [] args) { int z = x+y; (there is an underline at the bottom of x and y) int x = 22; int y = 25; System.out.printIn("The sum of x+y = "+z); }

https://codegym.cc/groups/posts/113-introducing-the-externalizable-interface I don't understand why the the following is said in the lecture (link above) : "Third, when you use inheritance, all descendant classes that inherit some externalizable class must also have default constructors." I assum

Hi there, In don't understand what is actually required in this task. May I have some more detailed information about what it's to be done?

Hi i don't understand the problem...

Please help me find a mistake

Maybe this is an english language problem by me, I dont't know, but I can't interpret good enough the following sentence on this link: https://docs.oracle.com/javase/8/docs/api/index.html?java/io/File.html "public static File createTempFile(String prefix, String suffix) throws IOException Crea

Why is this "Generic Array Creation" not allowed in the programme? ArrayList<String>[] lists = new ArrayList<String>[5]; When I simplify to ArrayList<String>[] lists = new ArrayList[5]; it compiles. What is the issue with providing the type of the lists (String) and why is it

In a few years when I'm a senior developer I'll come back here and let you guys know if a question like this really matters if you're not some sort of quantum physicist. Meanwhile I'll choose to ignore trying to understand it and copy and paste someone's answer. I think I could understand it if I du

I am asked for a secret key while accessing the installed plugin for codegym in IntelliJ.... can anybody help me out in that?

I entered the wrong key when trying to connect InteliiJ and CodeGym. Now I can't correct it. I have uninstalled / installed the plugin again. What can I do? what is a secret key in general? Password? Thank you for your help.