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Questions about tasks
Hot
DEEMA
Level 3
Under discussion
How can I chang my name ?
Hi guys Can someone help me
23.07.2023
111
views
1
comment
0
matemate123
Level 50
Kraków
Question about the task
Restaurant (part 10)
Java Multithreading
,
Level 9
,
Lesson 15
Under discussion
Scary 10 part
I need help here definitely! Guys, tell me how far away I am from the solution, and give me some advice because I don't know exactly what the validator wants here. There are so many places to make errors here, and I don't want to bang head against the wall.
20.07.2023
264
views
3
comments
0
DEEMA
Level 3
Under discussion
I need help
Hi guys Can any one help me ,because I don’t have any dark matter and I do all my tasks I don’t know what should I do to get dark matter So if someone can help me ,please answer me Thank you 🙏
22.07.2023
105
views
2
comments
0
Gowtham
Level 15
Bangalore
Resolved
How to open the Java Core tasks on IntelliJ?
I just finished all of the Syntax tasks. Please tell me how to open the Core quests on IntelliJ Idea.
19.12.2019
1000
views
4
comments
0
Amantai
Level 46
Shymkent
Question about the task
Introducing tags
Java Core
,
Level 9
,
Lesson 11
Resolved
The program ran too long and was closed!
File contents: Info about Leela Leela Turanga Supergirl Output: Leela Turanga Leela Turanga Super girl Process finished with exit code 0
19.07.2023
314
views
5
comments
0
Amantai
Level 46
Shymkent
Question about the task
Replacing numbers
Java Core
,
Level 9
,
Lesson 11
Resolved
Please tell me where is the mistake?
Input file: This costs 1 dollar, but this is 12. The variable is called file1. 110 is a number. Football is played by 22 people, but 11 Germans always win. Console output: This costs one dollar, but this is twelve. The variable is called file1. 110 is a number. Football is played by 22 people, but
21.07.2023
94
views
2
comments
0
Amantai
Level 46
Shymkent
Question about the task
Words with numbers
Java Core
,
Level 9
,
Lesson 11
Resolved
Where is the mistake?
mentor recommendation: Be sure that the program writes all the words containing numbers from the first file to the second file.
20.07.2023
108
views
2
comments
0
Boris
Level 1
New
Can I retake the placement test?
I took some courses on Java and now I wonder if I can retake the placement test here so it reflects my level better without going through the tasks manually
20.07.2023
77
views
0
comments
0
Rebecca Zee
Level 10
New York
Question about the task
Duplicating words
Java Syntax
,
Level 7
,
Lesson 9
Under discussion
Error occurs when running the program
How do I resolve this error when I run my program? I can pinpoint that it has to do with adding a string to the ArrayList in the doubleValues(ArrayList) method. When I use the loop to print out the list it runs just fine. java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkFo
18.07.2023
318
views
7
comments
0
Gummy C
Level 11
United States of America
Question about the task
Two iPhones
Java Syntax
,
Level 10
,
Lesson 4
Under discussion
Hello again! I am having trouble understanding the issue with my code again. The first if statement compares whether or not the two objects are equal. The second if statement compares whether an object has null. The third if statement compares the two objects to see if they have identical elements.
package en.codegym.task.pro.task10.task1010; import java.util.Objects; /* Two iPhones */ public class Iphone { private String model; private String color; private int price; public Iphone(String model, String color, int price) { this.model = model; this.color = c
19.07.2023
154
views
3
comments
0
Gummy C
Level 11
United States of America
Question about the task
Serial entrepreneur
Java Syntax
,
Level 10
,
Lesson 2
Under discussion
Please help, I do not understand what the problem is. Why do we "have" to use a void method when a static method could be used as well? It returns the same thing
package en.codegym.task.pro.task10.task1005; /* Serial entrepreneur */ public class Building { private String type; public static String initialize(String type){ return type; } public static void main(String[] args) { Building building = new Building();
16.07.2023
240
views
5
comments
0
Nisha Kumari
Level 4
Question about the task
Three numbers
Java Syntax
,
Level 3
,
Lesson 2
Under discussion
what is the error in my code ??
my code is showing error why ??
18.07.2023
110
views
2
comments
0
Amantai
Level 46
Shymkent
Question about the task
Tracking changes
Java Core
,
Level 9
,
Lesson 11
Resolved
What's my mistake?
mentor recommendation: Be sure that the lines list has the ADDED label with the required lines in the correct places. I tested the task according to the conditions. Here are the results: file1: file2: results: line1 line1 SAME line1 line2 line3
17.07.2023
130
views
2
comments
0
Amantai
Level 46
Shymkent
Question about the task
Calculating salaries
Java Core
,
Level 9
,
Lesson 11
Under discussion
Why isn't a decision made?
Input: Output: Brown 1.44 Baxter 4.1 Baxter 2.75 Peterson 5.1 Peterson 2 Smith 6.0 Brown 3.14 Brown 6.6 Smith 6 Baxter 1
18.07.2023
92
views
1
comment
0
Abegail Caducio
Level 2
Under discussion
math random
can you create me a math random problem
16.07.2023
77
views
1
comment
0
J
Level 41
Wilson
Question about the task
Restaurant (part 4)
Java Multithreading
,
Level 9
,
Lesson 15
Under discussion
Why is this not validating and giving an error (the only one) for my update method in the Waiter class?
@Override public void update(Observable o, Object arg) { this.order = (Order) arg; System.out.println(this + " was prepared by " + o); }
12.08.2022
352
views
2
comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task
Distributing items into baskets with their own lock
Java Multithreading
,
Level 6
,
Lesson 8
Under discussion
So much in this task I don't understand
1. What's the Node class? I've tried googling this but the explanations are all very technical and refer to other things I also don't understand. 2. What's up with the for loop? I've never seen the .next in a for loop like this. 3. What is the hash method accomplishing? It seems it would return a se
09.02.2022
661
views
7
comments
1
Amantai
Level 46
Shymkent
Question about the task
Reversing a file
Java Core
,
Level 8
,
Lesson 5
Resolved
Where is the mistake?
I used the required input/output streams and closed them immediately after reading/writing.
14.07.2023
90
views
2
comments
0
Gummy C
Level 11
United States of America
Question about the task
Searching in a string
Java Syntax
,
Level 9
,
Lesson 3
Under discussion
I have shown two different solutions that I tried which acheived the correct answer. But, it seems that I am still wrong. Please help me understand what I am doing wrong
package en.codegym.task.pro.task09.task0913; /* Searching in a string */ public class Solution { public static void main(String[] args) { String string = "To become a programmer, you need to write code. To write code, you have to learn. To learn, you need desire."; String word
13.07.2023
123
views
2
comments
0
Bejjipurapu Sowjanya
Level 1
New
I want code for maven project in eclipse
I want code for searching iPhone 13 in Amazon page and click on the first product in Amazon search page .get the details like product name, price and all available colours and store it into Excel sheet.
14.07.2023
112
views
0
comments
0
Amantai
Level 46
Shymkent
Question about the task
Prices
Java Core
,
Level 8
,
Lesson 11
Resolved
What is my problem?
Testing was successful.
12.07.2023
142
views
2
comments
0
pedro
Level 0
Question about the task
2048 (Part 17/18)
Games
,
Level 0
,
Lesson 2
New
pedro
🔁🔁🔁🔁🔁🔁🔁🔀🔀🔀🔼🔼
12.07.2023
115
views
0
comments
0
Vadim “迪姆哥”
Level 35
Question about the task
Once there were 32 teeth
Java Syntax
,
Level 2
,
Lesson 4
Resolved
optimal solution with for cycle
why this solution wrong? it meets all requirements for (int i=0; i<9;i++){ toothCounter--; }
17.09.2022
480
views
2
comments
0
vamps
Level 1
Gurgaon
New
print a program of two names
write a program to print two names using two objects in instant variables
09.03.2023
155
views
0
comments
0
dagim
Level 2
Question about the task
Concatenation of strings and numbers
Java Syntax
,
Level 2
,
Lesson 3
Under discussion
how ? x=2 , y=4, in between ther is space ,z=0 i think the answer was 24 0
how is possible
16.03.2023
178
views
1
comment
0
Nitin Saini
Level 4
Question about the task
Comparing strings by reference
Java Syntax
,
Level 3
,
Lesson 9
Under discussion
why is it showing that appropriate messages are not shown
please help
24.03.2023
181
views
1
comment
0
Nitin Saini
Level 4
Question about the task
Filled rectangle
Java Syntax
,
Level 4
,
Lesson 3
Under discussion
help please
there's no mistake in my cide still it is showing error please help
26.03.2023
151
views
1
comment
0
Henk
Level 7
Pretoria
Question about the task
There's never too much of a good thing
Java Syntax
,
Level 4
,
Lesson 8
Under discussion
I cannot continue to the next lesson/task
I completed the task, verified it correctly, and then downloaded the solution to see if I could have done it more efficiently. Then I downloaded my code again, and verified again, and it tells me it's already verified. But now I cannot continue/unlock the next task.
22.03.2023
200
views
1
comment
0
Nitin Saini
Level 4
Question about the task
Summation
Java Syntax
,
Level 4
,
Lesson 3
Under discussion
help please
why in the 18th line this command is used sum = sum + number;
26.03.2023
207
views
1
comment
0
Alen Nedic
Level 1
pula
New
558104B93D4E
558104B93D4E
29.04.2023
168
views
0
comments
0
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