Page 104 | CodeGym online Java course - Help

Gellert Varga
Level 23
Szekesfehervar
Under discussion
Reference conversions: widening and narrowing From the Oracle's website: "A widening reference conversion exists from any reference type S to any reference type T, provided S is a subtype of T. " "Narrowing reference conversions: From any reference type S to any reference type T, provided that S is a proper supertype of T. " 1.) On base of th
1/6/21
798views
4comments
0
Odeh Osayande Vincent
Level 1
Limerick
Under discussion
algorithm Design an Algorithm for the following Java application that asks a customer to: enter the quantity of items requested from a mail-order catalogue, and the price of each item. The program will then return & display the totalCost of the required items. The results are formatted to
5/1/20
828views
0comments
0
Odeh Osayande Vincent
Level 1
Limerick
Question about the task Improvements in Java 7 (multiple exceptions)
Java Collections, Level 8, Lesson 6
Under discussion
write a method called positive values which will calculate and return the number of positive numbers in array write a method called positive values which will calculate and return the number of positive numbers in array
5/1/20
980views
0comments
0
Syed
Level 1
Bolton
Under discussion
what is subscription fees?Hi what is subscription fees?
5/3/20
1046views
0comments
0
fzw
Level 41
West University Place
Question about the task Caching
Java Collections, Level 4, Lesson 8
Under discussion
Why is my code not validating last two requirements?I can get exactly the same result as the expected output. Thanks.
5/5/20
915views
0comments
0
anele
Level 0
Under discussion
Online teaching Does online teaching enhance the learning of Business studies at this time of covid 19
5/6/20
494views
0comments
0
myqms
Level 22
Landshut
Under discussion
What is wrong with the markTile method ?Please help, I can't find the mistake.
5/6/20
520views
0comments
0
Vadim
Level 8
Hounslow
Under discussion
it's something new for me, who can explain me that? Thanks a lot public class Solution { public static int step; public static void main(String[] args) { method1(); } public static void method1() { method2(); } public static void method2() { new Solution().method3(); } public void method3() { me
5/14/20
474views
0comments
0
Dima Faraj
Level 0
Question about the task Snake (Part 20/20)
Games, Level 0, Lesson 1
Under discussion
Help with Snake Collision I've just finished the course, and am doing bug-fixes. I have no idea how to make the snake move correctly, here's the code relating to my issue: //snake.java package com.codegym.games.snake; import com.codegym.engine.cell.*; import java.util.ArrayList; import java.util.List; public class Snake ex
5/15/20
807views
0comments
0
Arthur
Level 8
Céron
Under discussion
Hello I don't understand why it doesn't work...
5/18/20
581views
0comments
0
Angus McDonald
Level 5
Sydney
Question about the task Minesweeper (Part 16/16)
Games, Level 0, Lesson 0
Under discussion
Final step and code has been adjusted (not by me) which now doesn't function correctly.Hi team, I've just completed step 15 of the Minesweeper project successfully, moved into step 16 being very pleased with myself seeing that the game is complete and it appears that a bunch of code has been removed / updated when moving from step 15 to 16. The game isn't functioning as it should. I'
5/19/20
487views
0comments
0
Lisa THAZAR
Level 1
Francheville
Under discussion
Hi everyone..This is my code, and the error is the createGame don't call in the initialize.. Can you help me please?package com.codegym.games.minesweeper; import com.codegym.engine.cell.*; public class MinesweeperGame extends Game { private GameObject[][] gameField = new GameObject[SIDE][SIDE]; // check spelling of GameObject[][] variable above private static final int SIDE = 9; public void ini
5/20/20
582views
0comments
0
BlueJavaBanana
Level 37
Question about the task Debug everything under the sun
Java Core, Level 6, Lesson 13
Resolved
Hints/Tips on this Task I don't want the solution to this task, but I'm really struggling to grasp how to approach this problem. Has anyone got any tips/subtle hints?
5/14/20
714views
2comments
0
Katerina Brookshaw Petranova
Level 5
Parque la reina-Cho
Question about the task Currency exchange
Java Syntax, Level 3, Lesson 3
Resolved
please help can you please tell me where I'm going wrong and what have I forgotten? Please be clear as this is the first time I'm trying to learn programming language, thanks.
12/15/20
663views
5comments
0
Dinesh
Level 7
Delhi
Question about the task Minimum of two numbers
Java Syntax, Level 4, Lesson 6
Under discussion
Can not find symbol num1 and num2 package com.codegym.task.task04.task0418; /* Minimum of two numbers */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
1/6/21
614views
2comments
0
Lex Medeiros
Level 18
San Jose
Question about the task Debug everything under the sun
Java Core, Level 6, Lesson 13
Under discussion
The program must use OurUncaughtExceptionHandler's uncaughtException method to display 2 messages.As far as I understand this I am setting the default exception handler OurUncaughtExceptionHandler. Placing it inside the TestedThread class definition. It outputs the two lines correctly. Thus, it must be using "OurUncaughtExceptionHandler to display the two messages. Please help!
7/11/19
1792views
5comments
0
Wojtek
Level 23
Solec-Zdroj
Question about the task Debug everything under the sun
Java Core, Level 6, Lesson 13
Under discussion
need some hint If i properly understand Interface Thread.UncaughtExceptionHandler it should be invoke when RuntimeException is throw.
2/28/19
1535views
4comments
0
Dinesh
Level 7
Delhi
Question about the task Do we have a pair?
Java Syntax, Level 4, Lesson 4
Under discussion
What went wrong in displaying all the 3 equal nos. at line 27 import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader (new InputStreamReader(System.in)); String fnum = reader.readLine(); int num1 = Integer.parse
11/29/20
832views
4comments
0
Lex Icon
Level 17
Sofia
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Resolved
Splitting-sorting has implemented correctly, the problem is to populate the final ArrayList contains the sorted data.Hi Java warriors, Just to make some of my actions more clear: I called isGreaterThan() just to cover the requirement, in fact - my code doesn't need this check (maybe I'm wrong, it's possible tho). So, I'd highly appreciate it if anyone would help me to fix my code, by editing: //populating the fina
1/5/21
679views
5comments
0
Jennifer Peters
Level 3
Brisbane
Question about the task Implement the print method
Java Syntax, Level 2, Lesson 1
Under discussion
Help - Explanation of for loop Hi all, I was just wondering if anyone could explain why my function prints 5 times. My understanding is that the loop would stop before index 5 because of the for loop condition i<5. Would anyone please explain this to me? Thanks 😀
1/6/21
640views
1comment
0
joe
Level 27
London
Question about the task Building a file
Java Core, Level 8, Lesson 11
Under discussion
Stuck on last validation "Copy all the bytes from the *.partN files to the new file."Any tips on what I'm doing wrong?
1/5/21
457views
3comments
0
Thasi
Level 10
Cape Town
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Under discussion
Confused as to what I am getting wrong...Tested it with both numbers/strings only - still works but my code is not verified as correct, where did I go wrong?
7/8/19
1340views
4comments
0
anupam jha
Level 7
Question about the task Sum of the digits of a three-digit number
Java Syntax, Level 3, Lesson 12
Resolved
help plz public static int sumDigitsInNumber (int number) { } what to write inside this method n more importantly why ??? when you write System......print..(method (546))... you are nt done?? why??
1/5/21
759views
3comments
0
Chandan Thapa
Level 22
Dubai
Question about the task Prices
Java Core, Level 8, Lesson 11
Resolved
how and where am I doing wrong?Any help would be great.
1/4/21
577views
5comments
0
Dinesh
Level 7
Delhi
Question about the task Crossing the road blindly
Java Syntax, Level 4, Lesson 4
Under discussion
Unable to approach in proper way Please refer line number 16 tried with real numbers 1.5 and 2.5. It is working with 2.5 and hope if I do so it will work for rest But its a Big O(n) type approach its not so good please help
11/28/20
810views
10comments
0
Sendhur Muthu
Level 2
Mumbai
Under discussion
Need to continue my learning quest..I am at level 2..Idont have any more dark matter to move forward..stuck in here ,can you give me a solution..And also i have completed all my free tasks. Moreover I cant afford to buy premium. Need help to finish my quest.
4/29/20
872views
0comments
0
Jhoal
Level 22
Berlín
Question about the task A list and some threads
Java Core, Level 6, Lesson 3
Under discussion
I don't understand why? Hey guys I have a question. I didn't quite understand why do I have to write the keyword new and the () in SpecialThread - - >> new Thread (new SpecialThread ()); Wouldn't be enough just address SpecialThread and nothing else? Or is it because it is a static class?
1/5/21
544views
1comment
0
anupam jha
Level 7
Under discussion
variables Cat c = new Cat(); here i created cat variables or objects? yes i initialized the Cat c variable hence its an object....Give ur opinion....Thanks...!
1/4/21
746views
2comments
0
Liliane Top
Level 17
Amsterdam
Question about the task Snake (Part 11/20)
Games, Level 0, Lesson 1
Under discussion
Again I fail the test but it works in my game I tried many different thing and it seems to work correctly in my game but I keep failing the test. Someone any idea why??
2/29/20
1400views
3comments
0
Josephine
Level 2
Normal
Question about the task Request parser
Java Core, Level 5, Lesson 12
Under discussion
Why my third condition is not passing?I am getting correct output.Why my third condition is not passing?I am getting correct output. please help
1/5/21
769views
1comment
0

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