Page 91 | CodeGym online Java course - Help

Andrei
Level 41
Question about the task Building a file
Java Core, Level 8, Lesson 11
Resolved
Stuck. I need an algorithm that resets the entry set if the current entry is not the correct value.My problem starts at line 52 - i have tried many ways to find an algorithm that resets the LOOP if the key is not correct. package com.codegym.task.task18.task1825; import javax.swing.plaf.synth.SynthTextAreaUI; import java.io.*; import java.util.*; /* Building a file */ public class Solution
28.01.2021
619views
16comments
0
Dinesh
Level 7
Delhi
Under discussion
Guide to make it executable without constructors Want to make it executable code with proper output. class MyFile { private String filename = null; public void initialize(String name) { this.name = name; } public void initialize(String folder,String name) { this.filename = folder + name; } public void i
29.01.2021
461views
1comment
0
J H U X
Level 7
Alkmaar
Question about the task Lonely arrays interact
Java Syntax, Level 7, Lesson 4
Resolved
Last requirement is not checking.I did not find this hard to do (it's giving correct output), but still it's still not accepting the last requirement. So, apparently, I'm still doing something wrong. Can someone help?
28.01.2021
475views
3comments
0
hidden #10656888
Level 22
Question about the task CRUD 2
Java Core, Level 7, Lesson 10
Under discussion
The format for date is different for both crud assignments but solution expects to have the same format, its confusing.CRUD 2 bd (birth date in the following format: 04 15 1990) CRUD bd (birth date in the following format: "04 15 1990") The way the format is mentioned is different for both assignments, one is with quotes and the other without quotes and no wonder my solution would never work.👎Please change this
06.01.2021
469views
3comments
0
zub
Level 41
Milan
Question about the task Static modifiers and kittens
Java Core, Level 5, Lesson 9
Resolved
Stuck on this one Not sure what I'm doing wrong here. Tried other ways too.
28.01.2021
695views
3comments
0
Stefan Craia
Level 15
Bucharest
Question about the task Robot wars
Java Core, Level 3, Lesson 11
Under discussion
I don't know man, i just don't see it The new body part must be added to the logic for the attack and defend methods in the AbstractRobot class. The attack method should return BodyPart.CHEST in some cases.
10.10.2019
1191views
4comments
0
Dmitri
Level 22
Seversk
Question about the task CRUD
Java Core, Level 7, Lesson 10
Under discussion
Don't know why 3d and 4th conditions don't pass. Code is working ok.Don't know why 3d and 4th conditions don't pass. Code is working ok.
05.01.2021
435views
0comments
0
Daniel Whyte
Level 17
Question about the task Calculator
Java Syntax, Level 6, Lesson 8
Under discussion
X by 1.0 In the methods which return doubles the solution multiplies int a by 1.0. Why is the necessary?
28.01.2021
759views
1comment
0
Daniel Whyte
Level 17
Question about the task Cat and statics
Java Syntax, Level 6, Lesson 11
Under discussion
Constructors When an object of a class is made does it always automatically call the constructor?
28.01.2021
595views
1comment
0
MoJo
Level 23
Cairns
Resolved
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);
27.01.2021
412views
1comment
0
Liliane Top
Level 24
Amsterdam
Question about the task Reading and writing to a file: Human
Java Core, 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
14.01.2021
607views
5comments
0
Deborah Wenrich
Level 7
Pembroke Pines
Question about the task Flip the array
Java Syntax, Level 7, Lesson 4
Under discussion
What lovely thing Am I missing? It is failing to pass on the last criteria.package com.codegym.task.task07.task0704; import java.io.BufferedReader; import java.io.InputStreamReader; /* Flip the array */ public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader
26.09.2020
485views
3comments
0
Daniel Whyte
Level 17
Question about the task Feng Shui and statics
Java Syntax, Level 6, Lesson 11
Under discussion
Static int A I think I understand. Am I right in saying that you have to declare static for int A because it is an instance variable while it is just declared in the class and an instance variable can't be used as an object?
27.01.2021
594views
1comment
0
Daniel Whyte
Level 17
Question about the task Arithmetic mean
Java Syntax, Level 5, Lesson 5
Under discussion
Output My output seems to work but the code doesn't pass testing. What's wrong with it?
28.01.2021
476views
2comments
0
Liliane Top
Level 24
Amsterdam
Question about the task Files and exceptions
Java Core, Level 8, Lesson 11
Resolved
Confusion I do not get the difference between try-catch and try-with-resources I understand that try-with resources automatically closes the streams but what if you wantt to use try with catch block. I'm clueless as why this codes is wrong and the validator is even more confusing. package com.codegym.task.task18.task1824; /* Files and exceptions */ import java.io.*; pub
08.01.2021
494views
5comments
1
Andrei
Level 41
Question about the task Rounding numbers
Java Core, Level 8, Lesson 11
Resolved
I believe it's correct, but apparently not even the reading of the numbers is correct. Assistance, please!I have gone through multiple times and it seems fine to me. The only thing that MAYBE is not ok is that I add a space even at the end of the new file where I write the rounded numbers. But it doesn't say anywhere that there shouldn't be a space after the last number. Anyway, what is the problem? I
19.01.2021
649views
7comments
0
I.A
Level 7
unknown city
Question about the task Maximum in an array
Java Syntax, 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
30.03.2020
1202views
4comments
0
Stephanie
Level 4
Rochester
Question about the task Minimum of four numbers
Java Syntax, 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;
27.01.2021
425views
2comments
0
Abdelrahman
Level 5
Amman
Question about the task 18+
Java Syntax, 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.
24.01.2021
561views
2comments
0
Isa Musa
Level 3
Kano
Question about the task Implement the print method
Java Syntax, 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.
04.01.2021
1063views
1comment
0
Maryem Vickers
Level 7
HT...
Question about the task Playing Javarella
Java Syntax, 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!
22.01.2021
523views
2comments
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.
26.01.2021
429views
2comments
0
J H U X
Level 7
Alkmaar
Question about the task Task about algorithms
Java Syntax, 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
24.01.2021
777views
8comments
0
Daniel Whyte
Level 17
Question about the task Even and odd digits
Java Syntax, Level 6, Lesson 5
Under discussion
Won't read What's wrong with my code. It won't seem to read.
25.01.2021
713views
3comments
0
Josephine
Level 26
Normal
Question about the task Externalizable Person
Java Core, 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.
13.01.2021
401views
2comments
0
Maxim Raitin
Level 20
Tomsk
Question about the task HashMap of 10 pairs
Java Syntax, 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(); ?
25.01.2021
571views
2comments
0
WhiteColloid
Level 7
San Francisco
Question about the task Cat and statics
Java Syntax, 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();
09.01.2021
661views
3comments
0
remote87
Level 18
Sofia
Question about the task Who's that smarty?
Java Core, 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 ..
25.01.2021
538views
2comments
0
Marco Negus
Level 9
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?
21.12.2020
386views
3comments
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 ??
25.01.2021
339views
0comments
0

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