Page 26 | CodeGym online Java course - Help

TatMik
Level 1
Stockholm
Question about the task Remove duplicate strings
Java Syntax, Level 5, Lesson 3
Resolved
What should I fix?The both alternatives don't pass the test but work correctly for me...
7/23/23
553views
4comments
0
DEEMA
Level 3
Under discussion
How can I chang my name ?Hi guys Can someone help me
7/23/23
330views
1comment
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.
7/20/23
719views
3comments
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 🙏
7/22/23
327views
2comments
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.
12/19/19
1339views
4comments
0
Amantai
Level 47
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
7/19/23
828views
5comments
0
Amantai
Level 47
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
7/21/23
321views
2comments
0
Amantai
Level 47
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.
7/20/23
360views
2comments
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
7/20/23
312views
0comments
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
7/18/23
841views
7comments
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
7/19/23
492views
3comments
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();
7/16/23
730views
5comments
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 ??
7/18/23
411views
2comments
0
Amantai
Level 47
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
7/17/23
396views
2comments
0
Amantai
Level 47
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
7/18/23
356views
1comment
0
Abegail Caducio
Level 2
Under discussion
math random can you create me a math random problem
7/16/23
289views
1comment
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); }
8/12/22
657views
2comments
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
2/9/22
1264views
7comments
1
Amantai
Level 47
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.
7/14/23
324views
2comments
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
7/13/23
405views
2comments
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.
7/14/23
403views
0comments
0
Amantai
Level 47
Shymkent
Question about the task Prices
Java Core, Level 8, Lesson 11
Resolved
What is my problem?Testing was successful.
7/12/23
418views
2comments
0
pedro
Level 0
Question about the task 2048 (Part 17/18)
Games, Level 0, Lesson 2
New
pedro 🔁🔁🔁🔁🔁🔁🔁🔀🔀🔀🔼🔼
7/12/23
402views
0comments
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--; }
9/17/22
755views
2comments
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
3/9/23
407views
0comments
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
3/16/23
430views
1comment
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
3/24/23
486views
1comment
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
3/26/23
397views
1comment
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.
3/22/23
486views
1comment
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;
3/26/23
492views
1comment
0

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