Page 12 | CodeGym online Java course - Help

Lord_Gabo
Level 11
Arzachena
Question about the task This age doesn't work for me…
Java Syntax, Level 3, Lesson 4
Under discussion
The Person class's adjustAge method should increase the Person's age by 20. Why is my code not good?After three days I need to ask for help! Where am I going wrong? The error being validated tells me The Person class's adjustAge method should increase the Person's age by 20. The printed output is 40 , I think I did not understand well .. I tried with: Person person = new Person(); this.age = age
3/18/22
1343views
4comments
2
HaeWon Chung
Level 17
Boston
Question about the task Neo
Java Core, Level 3, Lesson 11
Resolved
I don't know why this code runs After reading answers from other questions, I understand that I have to change DBObject to User to pass the verification. However, even without changing it, the code displays correct answer. Could someone please explain why it displays correct answer?
5/16/20
866views
4comments
0
X SS
Level 25
Question about the task Reverse
Java Syntax, Level 6, Lesson 3
Under discussion
Says can't find symbol Please look at my solution it prompts can't find symbol on 23rd line? Why?
4/25/24
299views
1comment
0
rags 3
Level 5
Wichita
Question about the task Price of apples
Java Syntax, Level 3, Lesson 4
Under discussion
how is the Apple.addprice working tried to switch with subtract doesn't work I understand that your creating a Apple class apple and passing variable applePrice to it but i want to know how the addprice works how does the operator work tried to exchange subtract but didnt work like Apple.subtractPrice(100);
4/24/24
278views
1comment
0
FelixUjo
Level 35
Gijón
Question about the task Archiver (part 8)
Java Multithreading, Level 7, Lesson 15
Under discussion
I do not understand why it does not validate the task. Help If any exception other than a NoSuchZipFileException occurs, then display "An error occurred. Please check the entered data."
4/22/24
300views
1comment
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task StringTokenizer
Java Syntax, Level 10, Lesson 6
Under discussion
Which task conditions am I missing?I've written code that has to use a StringTokenizer and split the input string into parts based on the delimiter variable, while the maximum possible number of tokens must be 6. The result must be returned without null tokens. I guess I've done all that and my code produces the required output. What
4/22/24
295views
2comments
0
Dương Tiến Đạt
Level 41
Ha Noi City
Question about the task Chat (part 8)
Java Multithreading, Level 6, Lesson 15
Under discussion
What's wrong?I couldn't seem to pass the "The name request should repeated until the message type of the response is equal to MessageType.USER_NAME." validation. Can someone tell me why?
8/27/20
779views
2comments
0
rags 3
Level 5
Wichita
New
can i reset where im at Hi started while back then quit do to money is there a way to reset to start lesson one again so i can refresh have bought year program now so im good for while
4/21/24
268views
0comments
0
Christy
Level 5
Question about the task Summation
Java Syntax, Level 4, Lesson 0
Under discussion
Summation exercise with Boolean values Hi, can someone pls explain why the Boolean isExit variable is initially initialized to false and why the boolean in the while loop condition is set as true (!isExit) only for the Boolean in the if condition to be set to true. It's quite confusing to me. I found it hard to come up with the correct s
4/20/24
273views
2comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Remove duplicate strings
Java Syntax, Level 6, Lesson 4
Resolved
What's wrong if the output's right?The code I've written reads 6 strings from the console, finds duplicated ones among them, substitutes them with null and produces the expected output. Why does it still fail validation (in particular, does not meet the 2nd requirement)?
3/22/24
417views
9comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Filling an array
Java Syntax, Level 6, Lesson 8
Resolved
What's wrong if the output's right?I'm wondering which particular requirements are not met by my code if it produces the expected output...
3/25/24
330views
3comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Magic 8 ball
Java Syntax, Level 9, Lesson 2
Resolved
What's wrong?I've written some code that seems logical to me. Why is it still not meeting the requirements I wonder?
4/3/24
330views
4comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Increments
Java Syntax, Level 9, Lesson 7
Resolved
What is the order this code compiles?I'm interested in the order 'b' is calculated here: int a = 3; int b = a++ + (a-- * a++); We've read in the lesson that the 1st priority belongs to parenthesis, so we begin with (a-- * a++), right? The 2nd priority is the unary operator, but which one? The lesson says it works from right to
4/11/24
304views
2comments
0
Evgeniia Shabaeva
Level 42
Budapest
Question about the task Binary converter
Java Syntax, Level 10, Lesson 2
Resolved
What's wrong with the second method?The task is to write code to convert a decimal to a binary number and vice versa. I've kind of finally written the 'toBinary' method that works but the 'toDecimal' one keeps making an error. I still can't see what I'm doing wrong.
4/12/24
276views
2comments
0
Ekaterina
Level 28
Tbilisi
Question about the task QR-code reader
Java Syntax, Level 8, Lesson 2
Under discussion
Can't pass last requirement Received: "The task failed to pass testing: Be sure that the program compares arrays using the deepEquals method of the Arrays class." But I am using Arrays.deepEquals in the 30th line of code. Please help me understand what I'm doing wrong.
1/25/24
524views
6comments
0
hidden #10668264
Level 7
Question about the task Minesweeper (Part 1/16)
Games, Level 0, Lesson 0
Under discussion
Engine symbol unresolved I typed the import statement: import com.codegym.engine.cell.*; but got an error message saying cannot resolve symbol engine. Has anyone come across this issue?
9/17/20
745views
8comments
0
Djole
Level 41
Belgrade
Question about the task Aggregator (part 6)
Java Collections, Level 8, Lesson 15
Resolved
not sure what is wrong @Override public List getJobPostings(String searchString) { try { Document doc = Jsoup.connect("https://www.linkedin.com/").get(); } catch (IOException e) { e.printStackTrace(); } return Collections.emptyList(); }
6/18/19
1704views
2comments
0
Jesú
Level 14
Madrid
Resolved
How to refresh tasks in the IntelliJ CodeGym plugin? No new tasks appear, despite new tasks being available from advancing through the course.
3/7/24
345views
1comment
0
Daniel Njuguna
Level 14
Kiambu
Under discussion
What's wrong with my code?package com.codegym.task.task09.task0902; /* Stack trace revisited */ public class Solution { public static void main(String[] args) throws Exception { method1(); } public static String method1() { method2(); //write your code here StackTraceElement[] st
2/5/19
1568views
2comments
0
Mayank Chandratre
Level 21
Question about the task Autoboxing
Java Syntax, Level 13, Lesson 1
Resolved
Will it be same?Are the Integer a = new Integer(10); and Integer a = Integer.valueOf(10); commands same?
11/5/22
515views
3comments
0
Aduroja ayomide Philip
Level 2
Ado ekiti
Under discussion
run it import tkinter as tk def calculate_area(): try: radius = float(entry_radius.get()) height = float(entry_height.get()) area = 2 * 3.14 * radius * (radius + height) result_label.config(text=f"Area of the cylinder: {area}") except ValueError:
4/10/24
375views
0comments
0
Zubin Nair
Level 7
New Delhi
Question about the task String array in reverse order
Java Syntax, Level 7, Lesson 4
Under discussion
I am not able to understand 3 and 4th requirements I am not able to understand 3 and 4th requirements Pls explain with required input and output Reply asap
9/18/18
2203views
10comments
0
#mr.coder
Level 5
Question about the task 2048 (Part 1/18)
Games, Level 0, Lesson 2
Under discussion
what classes are. What are objects?"what classes are. What are objects?"
7/20/21
919views
1comment
0
Angus McDonald
Level 5
Sydney
Question about the task Rounding numbers
Java Core, Level 8, Lesson 11
Under discussion
Output seems fine when testing.. can't seem to pass I've had a really good look through other solutions. A number of variations that I can't wrap my head around.
6/9/20
1186views
7comments
0
Angus McDonald
Level 5
Sydney
Question about the task Sequential file output
Java Core, Level 6, Lesson 13
Resolved
Last condition just won't validate!I've tried a couple different versions.. some I built myself.. others with help from other questions/solutions here... I've left various versions in commented out. I cannot for the life of me get the last condition to validate correctly. I suspect that the " " white space is being added to the end
6/8/20
887views
11comments
0
Fairoz Logde
Level 14
Mumbai
Question about the task Closest to 10
Java Syntax, Level 4, Lesson 4
Resolved
Logic Help What is wrong in my code since my code is displaying wrong answer please help me where I am wrong with my logic.
11/16/18
2516views
14comments
1
Lucas Hoage
Level 14
Savannah
Question about the task Task about algorithms
Java Syntax, Level 8, Lesson 11
Resolved
Feel like I'm on the right track but not sure.I understand the nature of the boolean compare function. If true, do this, if false do second. What I'm not really understanding is why the array is not assigning a value to when true or false. I expect that is should be doing this but I'm seeing nothing when I run test output in between the loops.
6/3/20
808views
9comments
0
Prassha
Level 24
Chagford
Question about the task Countdown at the races
Java Core, Level 6, Lesson 10
Resolved
numSeconds = 4; Why when numSeconds is more than 3 it is goes to catch? package com.codegym.task.task16; public class Solution { public static volatile int numSeconds = 4; public static void main(String[] args) throws InterruptedException { RacingClock clock = new RacingClock(); //write your code here Thread.sleep(3500); clock.i
6/2/20
813views
4comments
0
Xuhaib
Level 7
Lahore
Question about the task Streets and houses
Java Syntax, Level 7, Lesson 4
Archived
What the err ?????WHYYY?
11/15/18
2456views
7comments
0
Fadi AlSaidi
Level 13
Carrollton
Question about the task Somehow average
Java Syntax, Level 4, Lesson 16
Resolved
I tried multiple scenarios including negatives and still no luck I am approaching this in a different way than what has been posted by others. I ran multiple scenarios with no issues, IntelliJ passed the assignment but I couldn't get it to show complete, so I tried to submit it through the web, and it will not pass saying that I need to display the middle number.
11/14/18
2786views
17comments
0

1
...
10
11
12
13
14
...
374