Page 75 | CodeGym online Java course - Help

Gera
Level 3
Hamburg
Under discussion
Was ist falsch? Die Methode gibt doch die kleinste Zahl aus?package de.codegym.task.task02.task0216; /* Die kleinste aus drei Zahlen */ public class Solution { public static int min(int a, int b, int c) { int m = 0; if ((a < b) && (a < c)) m = a; else if ((b < a) && (b < c)
06.05.2021
478views
2comments
0
Xavier
Level 17
Pearland
Question about the task Making the top ten
Java Core, Level 2, Lesson 12
Resolved
It seems like it should work.According to everything I read about overloading, this should work, but the validation claims that the transformValue method is not doubling the number when it is, and that the main method should only call transformValue once, which it does.
06.05.2021
590views
3comments
0
Dwight Burrow
Level 3
Minnetonka
Question about the task Family relations
Java Syntax, Level 2, Lesson 2
Under discussion
A bit of an explanation?The husband and wife part I wouldn't be able to understand myself. I have two questions: Q1. Is woman.husband = man; the same as: public static class Woman { public Man husband = man; } Q2. Will I learn more about this later?
06.05.2021
660views
2comments
0
Pahunchik
Level 8
Moscow
Question about the task Task about algorithms
Java Syntax, Level 5, Lesson 12
Under discussion
Why can't it pass the test?My program works and shows the maximum number of N numbers. Why can't it pass 5th point of the test?
22.04.2021
572views
2comments
0
Yunus Can
Level 2
Under discussion
Premium ja oder Nein ? Lohnt sich die Premium version ? sie ist gerade im angebot für 90 euro
04.04.2021
675views
2comments
0
Andrei
Level 41
Question about the task Read online about the median of a sample
Java Multithreading, Level 6, Lesson 2
Resolved
I don't understand the logic of the mentor's solution.Why does he multiply v1 and v2 with themselves and then multiply the result by 100? public static Integer[] sort(Integer[] array) { final double mediana = getMediana(array); Arrays.sort(array, new Comparator() { @Override public int compare(Integer o1, Inte
04.05.2021
666views
5comments
0
ImDevin
Level 15
Old Town
Resolved
Hi all, a short question regarding outputs in intellij, in general Just a quick question about being able to see an output from the tasks. As an example, when I passed the task 0820, Animal Set, the output doesn't show anything in intellij, even though the code has System.out.println(object); in the printPets method. I'd like to be able to see the output for the
02.05.2021
677views
4comments
0
Chris
Level 19
Newark
Question about the task R or L
Java Syntax, Level 7, Lesson 9
Under discussion
Im getting the right answer when printed to the console window.I was finally able to get the example output result in the exercise but it is still denying me a passing mark on two categories. Can someone please help me understand what I am doing wrong here?
03.05.2021
547views
2comments
0
John
Level 17
Mansfield
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Resolved
The program ran too long can somebody help me why this statement occurs and my code can't pass validation?
01.05.2021
717views
8comments
0
partha protim sen
Level 2
Delhi
Question about the task Bugs and features
Java Syntax, Level 0, Lesson 8
Under discussion
please help me i am getting a typo error please help me with this code
09.09.2018
1814views
2comments
0
Zach
Level 22
Fort Collins
Question about the task HashMap of cats
Java Syntax, Level 8, Lesson 3
Under discussion
How do you put the cat object in the map?? // put cats in HashMap for (int i = 0; i < cats.length; i++) { Cat cat[i] = new Cat(); catMap.put(cats[i], cat[i]); } I know you can't do this but this is where my thinking is. Do you need to create a new Cat each time and put it in the hashmap
07.02.2021
886views
2comments
2
Fabian Andiel
Level 25
Vienna
Question about the task Four mistakes
Java Core, Level 3, Lesson 2
Under discussion
Dream interface?Hi guys, I got the sulotion with the help of the forum, but I am not completely sure about the following points: "hy has the dream Interface access to the Hobby class? Why can we access the Dream Interface directly? I thought interfaces are all abut methods, why we instantiate a variable in the i
20.07.2020
654views
1comment
0
Rafał
Level 35
Łódź
Question about the task Deserializing an XML object
Java Collections, Level 3, Lesson 8
Under discussion
what am i doing wrong?what am i doing wrong?
08.10.2020
516views
1comment
0
Szymon
Level 41
Warsaw
Question about the task Another kind of deadlock
Java Multithreading, Level 7, Lesson 4
Resolved
Woudn't just synchronized (lock) {} be enough?Why do we need to lock (this) as well? I see it that way: The thread goes into the first method -> locks the 'lock' mutex -> then goes to the second method and tries to go into the synchronize (lock) {} block but it can't because the 'lock' mutex was already acquired in the first method ->
27.04.2021
670views
5comments
0
Maria
Level 22
Moscow
Question about the task Symbol frequency
Java Core, Level 8, Lesson 11
Resolved
trying to pass penultimate requirements..What is wrong? Treemap is already sorted...
29.04.2021
416views
2comments
0
The Chief
Level 18
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Under discussion
Need help understanding this code.I couldn't figure out this task so I had to download the solution but I need help understanding it. First, how can the user enter both strings and numbers when the arraylist and array in the main method are only string types? Is it because the compiler takes the numbers and sets them as being of st
28.04.2021
691views
5comments
0
John
Level 17
Mansfield
Question about the task Let's make the code do something useful!
Java Syntax, Level 9, Lesson 11
Under discussion
Help there is no copy happening i can't figure out what's wrong or lacking
27.04.2021
683views
8comments
0
Jurij Thmsn
Level 29
Flensburg
Question about the task Serializing people
Java Core, Level 10, Lesson 10
Resolved
quick question I get it why the Logger and PrintStream fields must be transient. Can anyone explain me briefly why the fullName and greeting fields have to be transient, too? (regarding "final" modifier the Professors' article said: "Second, you should also pay attention to variables with the final modifier. Whe
28.04.2021
595views
2comments
0
Andrei
Level 41
Question about the task Finagle's first law: if an experiment succeeds, then something went wrong...
Java Multithreading, Level 5, Lesson 11
Resolved
What's the point of this exercise? I moved the Thread.yield(); around the code and the output was the same. I don't get it. public class Solution { public static class YieldRunnable implements Runnable { private int index; public YieldRunnable(int index) { this.index = index; } public void run() { System.out.println("begin-" + index); Thread.yield
28.04.2021
843views
2comments
0
Csaba Fülöp
Level 6
Debrecen
Question about the task Task about algorithms
Java Syntax, Level 5, Lesson 12
Under discussion
Display max is not fullfilled even if it is :/Every condition have passed except displaying max, however on the console it gets displayed yet the condition is not met. Can anyone help me to understand why it is not accepted?
25.04.2021
602views
3comments
0
Cristian
Level 16
Bucharest
Question about the task Minimum and Maximum
Java Core, Level 1, Lesson 11
Under discussion
My output is The minimum is 0 The maximum is 0. Why? What should I change in my code? Thanks a lot! package com.codegym.task.task11.task1123; public class Solution { public static void main(String[] args) throws Exception { int[] data = new int[]{1, 2, 3, 5, -2, -8, 0, 77, 5, 5}; Pair result = getMinimumAndMaximum(data); System.out.println("The minimum is " + result
28.04.2021
441views
2comments
0
Andrei
Level 41
Question about the task It's not as easy as it seems
Java Multithreading, Level 5, Lesson 7
Under discussion
Help please? What should I do here?Can anyone please provide some pointers?
27.04.2021
493views
5comments
0
Gellert Varga
Level 23
Szekesfehervar
Resolved
Is this possible?? Isn't it just another misspelling again?https://codegym.cc/quests/lectures/questcore.level07.lecture01 The "another example" in the lesson, with the swaping of the names. As Dmitri said in his post at 29 December 2020, 06:07: "if each thread is working with it's own MyClass instance why all this mess should happen?" In my opinion, this pr
26.04.2021
742views
10comments
0
Maxim Raitin
Level 20
Tomsk
Question about the task Writing to a file from the console
Java Core, Level 3, Lesson 11
Resolved
Please Help me Hello there! What is wrong?
26.04.2021
626views
3comments
0
Sophia
Level 1
Question about the task Kind words for the teacher
Java Syntax, Level 0, Lesson 4
Under discussion
Can't find what's wrong I can't see what's wrong with this. Everytime I try to run it, it says it can'r find the symbol and highlights the first period in the code. public static void main(String[] args) { System.out.printIn("Ellie is clever"); System.out.printIn("Ell
28.12.2020
626views
5comments
0
Steven's Education
Level 7
Jahil
Question about the task Task about algorithms
Java Syntax, Level 5, Lesson 12
Under discussion
The code works but not with the task I created the algorithm to find the maximum number from x input.It works but it doesn't fill the requirements. Somebody help please
23.04.2021
684views
3comments
0
Emeka
Level 4
Question about the task Minimum of four numbers
Java Syntax, Level 2, Lesson 8
Under discussion
confusion about the ? operator I have an idea for how the ? operator works: it is shorthand for if else statements. though I'm confused as to how it can be put as a return value of a method. At first, I thought the operator was syntactically equivalent (i.e. in any context, you can interchange the two and the program will yield t
24.04.2021
972views
3comments
0
Sansho
Level 19
Bordeaux
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Under discussion
The outputs are okay, but the robot is tellin' me NooOOoo Well, I think my algo is correct but it doesn't validate 2 things (well I admit, I don't used correctly the "greaterThan" because I found something more efficient)...
23.04.2021
618views
4comments
0
Cristian
Level 16
Bucharest
Question about the task Functionality is not enough!
Java Syntax, Level 10, Lesson 11
Under discussion
Something is wrong here! Thank you so much! package com.codegym.task.task10.task1019; import java.io.*; import java.util.HashMap; /* Functionality is not enough! */ public class Solution { public static void main(String[] args) throws IOException { HashMap map = new HashMap<>(); BufferedReader reader = new Buffe
23.04.2021
617views
2comments
0
Anthony Chalk
Level 30
London
Question about the task Writing our own ThreadFactory
Java Multithreading, Level 8, Lesson 4
Under discussion
Got it right but don't understand small point I initially failed: The AmigoThreadFactory factory must create threads that are not daemons. The AmigoThreadFactory factory must create threads with a normal priority level. Until I added: thread.setDaemon(false); thread.setPriority(5); But aren't these the default values for any new Thread?
22.04.2021
1202views
7comments
0

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