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Java 25
All quests
All levels
Any status
Questions about tasks
Hot
Павел Артеменко
Level 41
Krasnodar
Question about the task
Contextual advertising
Java Core
,
Level 9
,
Lesson 11
Resolved
Am I missed something?
All works as per description, but verifying failed on last 2 conditions.
4/28/19
1373
views
2
comments
1
Luyi
Level 31
Kosice
Question about the task
Inheriting an inner class
Java Multithreading
,
Level 4
,
Lesson 4
Under discussion
what is the popper way?
Hi what is the proper way of achieving the task: "The BigHall class must be a descendant of the Building.Hall class." I have done it this way: public class BigHall extends Building.Hall { public BigHall(Building b){ b.super(null); } But I am not sure to be honest
10/28/19
1500
views
2
comments
0
Jesús de Llera
Level 23
Badajoz
Question about the task
Following a pattern
Java Core
,
Level 6
,
Lesson 13
Resolved
The program displayed too much data on the console (on the screen)???
Last condition not verified. Don't know why. Neither do I know why the validator is complaining about too much data on screen....
6/14/19
1975
views
2
comments
1
Cristian
Level 16
Bucharest
Question about the task
Static cats
Java Syntax
,
Level 6
,
Lesson 11
Archived
I have one compile error. Please, help me!
package com.codegym.task.task06.task0614; import java.util.ArrayList; /* Static cats */ public class Cat { //write your code here public static ArrayList cats = new ArrayList<>(); public Cat() { } public static void main(String[] args) { for (int i = 0; i <
10/28/19
1242
views
3
comments
0
Season10
Level 14
Question about the task
Positive and negative numbers
Java Syntax
,
Level 4
,
Lesson 7
Resolved
Note that 0 is not a positive or negative number.
Can someone help me? I try but I don't know why
10/28/19
1674
views
2
comments
0
Robert Constantinescu
Level 1
Bucharest
Question about the task
Five winners
Java Syntax
,
Level 8
,
Lesson 11
Under discussion
Am i missing something?
The algorithm looks like it's sorting the array in descending order. But for some reason, even though the displayed numbers are the biggest five. It fails testing? Is the algorithm wrong? or maybe something else? Kindly let me have your answers. Thank you
10/27/19
1284
views
3
comments
0
Leontin Vasii
Level 6
Iasi
Question about the task
Minimum of three numbers
Java Syntax
,
Level 2
,
Lesson 8
Under discussion
Hy....I am stuck here...!!!
Help me pls with some hint's.....
10/28/19
1374
views
1
comment
0
Madhu
Level 9
Question about the task
Shortest or longest
Java Syntax
,
Level 7
,
Lesson 6
Under discussion
Last two conditions are not getting....can anyone help me??
.........
8/11/19
1219
views
1
comment
0
Зоран Јањић
Level 8
Teslic
Question about the task
Even and odd digits
Java Syntax
,
Level 6
,
Lesson 5
Under discussion
Any help please?
Cant figure out the rest .
10/25/19
1250
views
1
comment
0
Juanf
Level 2
Question about the task
Long words
Java Core
,
Level 9
,
Lesson 11
Resolved
So..., why Mentor tells me: "Be sure that the program writes to the second file all the words from the first file longer than 6 characters, separated by commas."??
I've checked and tested, and for me works. I've included code so I event respect carriages returns (first attempts were without this), and I don't finish with "," in any of the lines, nor at the end of the file. So..., why it doesn't verify and that's the "recommendation"? Can anyone help, please?
10/27/19
1351
views
2
comments
0
Patrick freeman
Level 14
Buffalo
Question about the task
Remove and insert
Java Syntax
,
Level 7
,
Lesson 6
Under discussion
What is wrong
I'm not sure where I am going wrong, in IntelliJ, I keep getting an out of bounds exception, but I don't think I'm doing anything to or calling index 5(the 6th string in the index), so I'm not sure where this is wrong. Thanks for the help in advance!
10/20/19
1263
views
3
comments
0
Patrick freeman
Level 14
Buffalo
Question about the task
Expressing ourselves more concisely
Java Syntax
,
Level 7
,
Lesson 6
Archived
Why wont this pass?
If i run my program in IntelliJ, my input and output looks like this: INPUT: a a as asfd asd OUTPUT: a a The program reads 5 strings from keyboard, finds the shortest string, displays it, and displays multiples if more than one are the shortest. Yet, none of the conditions pass. The previous task
10/20/19
1441
views
3
comments
0
RO8SA1T
Level 2
Pune
Question about the task
The required number
Java Syntax
,
Level 2
,
Lesson 5
Resolved
please help me
i am not getting the meaning of Comment out as many lines as possible to display the number 19 please help me
8/21/18
1742
views
9
comments
0
Anthony Chalk
Level 30
London
Question about the task
Display numbers in reverse order
Java Syntax
,
Level 7
,
Lesson 12
Resolved
Why is this not validating?
I can't see the problem
10/26/19
1284
views
3
comments
0
ashgolan
Level 8
Ashdod
Question about the task
Shortest or longest
Java Syntax
,
Level 7
,
Lesson 6
Resolved
hi . i have a correct output but i dont find the problem ?
can anybody help please ?
10/27/19
1137
views
1
comment
0
Clarendon lee
Level 8
Baltimore
Question about the task
Creating cats
Java Syntax
,
Level 5
,
Lesson 9
Resolved
Construction
What's my code wrong? Verify said "Be sure that the constructor initializes the required variables to the correct values. Be sure that the constructor initializes the required variables to the correct values. Be sure that the constructor initializes the require
10/26/19
1539
views
1
comment
0
Зоран Јањић
Level 8
Teslic
Question about the task
Cat relations
Java Syntax
,
Level 6
,
Lesson 11
Under discussion
Any help here please ?
public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String grandfatherName = reader.readLine(); Cat Grandfather = new Cat(grandfatherName); Str
10/25/19
1345
views
3
comments
0
Anthony Chalk
Level 30
London
Question about the task
Checking the order
Java Syntax
,
Level 7
,
Lesson 9
Resolved
Please help
I can't find the problem. Please help Thanks
10/26/19
1177
views
2
comments
0
Patryk Vrezer
Level 3
Gdansk
Under discussion
No Task
Hello i installed plugin in my Inteliij but I dont have my task I have only on lvl 0,1 but i have lvl 3 do you have idea?
10/26/19
1162
views
1
comment
0
Зоран Јањић
Level 8
Teslic
Question about the task
Task about algorithms
Java Syntax
,
Level 5
,
Lesson 12
Archived
Any advice please.
import java.io.*; /* Task about algorithms */ public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); int maximum =0 ; int N = Integer.parseInt(reader.readLine())
10/25/19
1109
views
2
comments
0
Kent Hervey
Level 19
Question about the task
Feng Shui and statics
Java Syntax
,
Level 6
,
Lesson 11
Under discussion
Please explain why it works
I got verification/passed using the below, but why? How? I just guessed. And what does this do? A=15; public class Solution { public static int A = 5; public int B = 2; public int C = A * B; public static void main(String[] args) { A = 15; } }
10/25/19
1577
views
4
comments
0
Szymon
Level 18
Lublin
Question about the task
Array of string lists
Java Syntax
,
Level 10
,
Lesson 11
Under discussion
failed condition
Hi, I have a problem with this task. My solution is attached. The failed condition is: "The createList method must declare and initialize an array with ArrayList elements." but according to oracle documentation -> "You cannot create arrays of parameterized types.". What am i missing here?
10/12/18
1989
views
3
comments
0
Kent Hervey
Level 19
Question about the task
Labels and numbers
Java Syntax
,
Level 4
,
Lesson 7
Resolved
%2==1 does not test for odd numbers properly for negative numbers
It seems %2==1 does not test for odd numbers properly for negative numbers? Why The below does not work for negative numbers such as -9: if(enteredNumber%2==1){ System.out.println("is odd"); }
10/14/19
1197
views
2
comments
0
kareandr
Level 35
Podol'sk
Question about the task
Word search
Java Core
,
Level 10
,
Lesson 10
Under discussion
Recursive problems
Hello everyone! Ive tried to solve this with recursion but it fails with message "The list returned by detectAllWords is not the right size!". System.out.println(words.length) prints 2. System.out.println(wordsList.size()) prints 2, same size. System.out.println(wordsList) prints [home - (5, 3) - (
7/8/19
1442
views
1
comment
0
Patrick freeman
Level 14
Buffalo
Question about the task
To the top of the list
Java Syntax
,
Level 7
,
Lesson 6
Resolved
Trying to understand this part of a for loop
Ok, so, to pass this task, I had to make the final for loop condition what is shown below, and this allowed me to println my entered array in reverse order of what was typed, but I don't really understand what is shown inside the parenthesis. I would think what I am doing here is Declaring a new Str
10/20/19
1353
views
2
comments
0
Krunoslav Krainović
Level 16
Question about the task
Functionality is not enough!
Java Syntax
,
Level 10
,
Lesson 11
Resolved
Seems it works but wont accept
Seems it works but wont accept
10/25/19
1207
views
3
comments
0
Luis Rodriguez Ugarte
Level 22
Chatillon-sur-Chalaronne
Question about the task
Words with numbers
Java Core
,
Level 9
,
Lesson 11
Under discussion
I do not know why does not validated
"Be sure that the program writes all the words containing numbers from the first file to the second file." I have try out to different test but it's working on perfectly good, any ideas please?
10/25/19
1270
views
2
comments
0
Петр Зинченко
Level 19
Kharkiv
Question about the task
Splitting a file
Java Core
,
Level 8
,
Lesson 5
Under discussion
What wrong?? 3&4 failed
Help please, i checked, it is work but don't pass
10/24/19
1265
views
4
comments
0
Kent Hervey
Level 19
Question about the task
ConsoleReader class
Java Syntax
,
Level 6
,
Lesson 8
Under discussion
b percent of the number a ??
what does this mean: b percent of the number a I would think if b is 10 and a is 40, then the result should be 25 as in 25% But?
10/25/19
1367
views
1
comment
0
赟 高
Level 16
Jinan
Question about the task
Brain training
Java Core
,
Level 5
,
Lesson 12
Under discussion
An error occurred during verification
This is my code.Is anything wrong? public class Solution { public static void main(String[] args) { Duck duck = new Duck(); Util.fly(duck); Util.move(duck); } public static class Duck implements CanFly, CanMove { @Override public void doAction()
10/13/19
1272
views
2
comments
0
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