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MoJo
Level 22
Cairns
New
what does HashCode() do?
So in given code (find mistakes etc.) there is a function overwritten that's called "HashCode". What is this used for? example public int hashCode() { int result = name != null ? name.hashCode() : 0; result = 31 * result + (assets != null ? assets.hashCode() : 0);
27 January 2021
1
view
0
comments
0
Liliane Top
Level 23
Amsterdam
Question about the task
Reading and writing to a file: Human
,
Level 10
,
Lesson 2
Resolved
A lot of confusion
I just copied some code from others and from the lesson 1 but I do not understand it. Maybe someone can revert me to another source to understand the concepts behind this task? For now a couple of questions 1) Why do we create a variable to check for instance if it has a name. What does it add? Woul
14 January 2021
39
views
3
comments
0
I.A
Level 7
unknown city
Question about the task
Maximum in an array
,
Level 7
,
Lesson 4
Under discussion
what to do in case of negative number in data.how would it check negative.?
what to do in case of package com.codegym.task.task07.task0701; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* Maximum in an array */ public class Solution { public static void main(String[] args) throws Exception { int[] array = in
30 March 2020
198
views
4
comments
0
Stephanie
Level 2
Rochester
Question about the task
Minimum of four numbers
,
Level 2
,
Lesson 8
Under discussion
Problem with test case 3 - min(-20, -10, -30, -40)
My code is almost complete, however I am having an issue with the above stated test case. How can I fix it? package com.codegym.task.task02.task0217;
27 January 2021
14
views
2
comments
0
Abdelrahman
Level 4
Amman
Question about the task
18+
,
Level 4
,
Lesson 6
Resolved
Help
I don't understand why the third task isn't met I did try to do System.out.println(name); System.out.println(age); but the 4th task also became unchecked but I did what it asked of me.
24 January 2021
21
views
2
comments
0
Vinay
Level 8
Question about the task
Kind Emma and the summer holidays
,
Level 8
,
Lesson 8
Under discussion
Please help!
After struggling for 2 days I could not find the solution. But what I got is that we need to use for (String key : copy.keySet()) I am still not used to enhanced for loop. Can someone please convert the enhanced for loop to longer version of for loop? And, little explanation will also help. Tha
27 January 2021
13
views
1
comment
0
Isa Musa
Level 2
Kano
Question about the task
Implement the print method
,
Level 2
,
Lesson 1
Resolved
Print method
What is the error in this code please? Whenever I try to run it it's used to show me 👉The print method should display the strings for times. Each time in a new line. Shade me more light on this please.
4 January 2021
30
views
1
comment
0
Isa Musa
Level 2
Kano
Question about the task
Pay raise
,
Level 2
,
Lesson 2
Resolved
Pay raise
Hey guys can someone come to my help please.? Whenever I run the code it shown me ""
7 January 2021
47
views
2
comments
0
Josephine
Level 20
Normal
Question about the task
Word search
,
Level 10
,
Lesson 10
New
Fixed the diagonal and backward isuue..Still not veryfing.
Tested with this.(.Words that are diagonal and backwards are being added incorrectly. I tested with an Array such as:)This is fixed.. {'f', 'd', 'e', 'h', 'l', 'k'}, {'u', 's', 'o', 'g', 'e', 'o'}, {'l', 'm', 'g', 'r', 'o', 'v'}, {'e', 'l', 'p', 'r', 'r', 'h'}, {'p', 'o', 'e', 'e', 'j', 'j'} But s
26 January 2021
7
views
0
comments
0
Josephine
Level 20
Normal
Question about the task
Word search
,
Level 10
,
Lesson 10
Under discussion
Someone help me...Getting the right output..
Someone help me...Getting the right output..What is wrong?
26 January 2021
30
views
4
comments
0
remote87
Level 13
Sofia
Question about the task
Nice weather
,
Level 3
,
Lesson 11
Resolved
This really pisses me offf....
Ok, I am stupid, I am new to this, I get that....but what the heck?! According to this article ( that I read over and over again ) https://codegym.cc/groups/posts/104-the-difference-between-abstract-classes-and-interfaces " An interface only describes behavior. It has no state." Also: But if we tr
26 January 2021
16
views
2
comments
0
Maryem Vickers
Level 7
HT...
Question about the task
Playing Javarella
,
Level 7
,
Lesson 9
Resolved
Hello-- I need more help on this please!
I have two things wrong and I cannot figure this out. I have been here for ages trying to work it out, but in vain. Can you please help?! I have two parts wrong! Thank you for your help!
22 January 2021
31
views
2
comments
2
Ruubgaming
Level 2
Almere Stad
Under discussion
My language changed
So I just got to level 2 but for some reason the text is english but everything else is dutch (what I want). My interface language is set tu dutch.
26 January 2021
15
views
2
comments
0
J H U X
Level 7
Alkmaar
Question about the task
Task about algorithms
,
Level 5
,
Lesson 12
Resolved
I am unable to solve this algorithms task...
The code works. It prints out the correct answer, but clearly I am not doing it the right way or I have an error somewhere. I am taking N from the keyboard and then loop N times. In this loop I set the highest nextN to int maximum. After loops are finished, I print out maximum. If N <= 0 I break
24 January 2021
56
views
8
comments
0
Daniel Whyte
Level 7
Question about the task
Even and odd digits
,
Level 6
,
Lesson 5
Under discussion
Won't read
What's wrong with my code. It won't seem to read.
25 January 2021
18
views
3
comments
0
Andrei
Level 19
Question about the task
Horse racing
,
Level 6
,
Lesson 5
Resolved
Dear Lord Jesus, what have I done to deserve this punishment? Why isn't it validating the first requirement?
Pleeeaseeeeeeeeee
14 December 2020
104
views
9
comments
0
Josephine
Level 20
Normal
Question about the task
Externalizable Person
,
Level 10
,
Lesson 7
Under discussion
what is wrong in the code?second condition not passing.Someone help
what is wrong in the code? Error says The server is unable to properly test your solution. Be sure you have all the classes you need. Be sure that your solution doesn't have any infinite loops.
13 January 2021
32
views
2
comments
0
Maxim Raitin
Level 8
Tomsk
Question about the task
HashMap of 10 pairs
,
Level 8
,
Lesson 3
Under discussion
My code works..
My code works.. but this doesn't compile in Codegym. Btw why what is the difference in line 13 between HashMap map = new HashMap(); and Map map = new HashMap(); ?
25 January 2021
20
views
2
comments
0
WhiteColloid
Level 7
San Francisco
Question about the task
Cat and statics
,
Level 6
,
Lesson 11
Under discussion
when to use "this" and when to use Cat.
When should I use this and when to use Cat. to call the variable in Cat class? public class Solution { public static void main(String[] args) { // Create 10 cats Cat cat1 = new Cat(); Cat cat2 = new Cat(); Cat cat3 = new Cat(); Cat cat4 = new Cat();
9 January 2021
49
views
3
comments
0
remote87
Level 13
Sofia
Question about the task
Who's that smarty?
,
Level 3
,
Lesson 2
Resolved
I missed something
I am really frustrated and confused with these ineterfaceses... I though that we can use the word extends only for classes inheritance and when using it, we can inherit only one class. But here: interface Boss extends Person, HasManagementPotential { } the interface extends ( inherits ) two ..
25 January 2021
21
views
2
comments
0
Marco Negus
Level 6
Under discussion
?????
hi guys anyone know why on the website im at level 3 lesson 3 available but after download e set intelliJ on my task i can just see till level 0 and 1 task ? how can i open all my new available task if i cannot show inside the IDE task? is a subcription problem?
21 December 2020
48
views
3
comments
0
Pandurang Patil
Level 3
kolhapur
Under discussion
level 3
I am study Mobil use code gym aap the level 3is not open and ideal c jdk 8 not installing and the not open please help me Sir ??
25 January 2021
8
views
0
comments
0
Peerawas
Level 18
Question about the task
Robot wars
,
Level 3
,
Lesson 11
Under discussion
I don't understand the logic of this game
The new body part must be added to the logic for the attack and defend methods in the AbstractRobot class.
30 December 2018
950
views
6
comments
0
Tamas Horcsak
Level 12
Leeds
Question about the task
Minimum and Maximum
,
Level 1
,
Lesson 11
Under discussion
Please guys help me. I could do the iteration but I cant pass it to the given X in the main. :-(
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.x); System.out.println("The maximum
22 January 2021
31
views
3
comments
0
Daniel Whyte
Level 7
Question about the task
Static methods for cats
,
Level 6
,
Lesson 8
Under discussion
Cat.catCount
Why can I not use this. catCount on the setter method?
25 January 2021
17
views
1
comment
0
myqms
Level 33
Landshut
Question about the task
Inverted words
,
Level 2
,
Lesson 9
Under discussion
The output seemes to be corret. But why doesn't it pass ?
The result list must be filled with correct pairs according to the task conditions, but I guess it does. Where is my mistake in thinking. Thank you for your advice, in advance.
24 January 2021
15
views
1
comment
0
taehee Im
Level 2
Kuri
Under discussion
Korean language support is not available.
Korean language support is not available from level 2. What happened?
25 January 2021
8
views
0
comments
0
Seth Barker
Level 4
Eureka Springs
Question about the task
Rule of the triangle
,
Level 4
,
Lesson 4
Resolved
Stopping run & not sure what is wrong with code
Couple of things going on. When I'm running the Solution in IntelliJ, nothing is showing up in the build for this task. I have to "stop" the build. Also - I'm not sure what's wrong with the code: package com.codegym.task.task04.task0415; /* Rule of the triangle */ import java.io.*; public
23 January 2021
27
views
2
comments
0
Lightbend
Level 17
Milan
Question about the task
MovieFactory
,
Level 4
,
Lesson 8
Resolved
Where am I going wrong?
Any help is appreciated.
24 January 2021
18
views
2
comments
0
Anitamalina
Level 10
København
Question about the task
Cat counter
,
Level 6
,
Lesson 5
Under discussion
What am I doing wrong here?
What am I doing wrong here?
22 October 2020
80
views
2
comments
0
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