Page 97 | CodeGym online Java course - Help

George
Level 15
Question about the task Minesweeper (Part 3/16)
Games, Level 0, Lesson 0
Under discussion
Can't run program Hi, task is resolved but I still can't run the program. I only get Build Module '8.Games' and when I try that I get 3 errors: 1. /8.Games/src/com/codegym/games/minesweeper/MinesweeperGame.java:5:8 java: cannot access javafx.application.Application class file for javafx.application.Application not
9/16/20
732views
0comments
0
Daniel Osiecki
Level 19
Lublin
Under discussion
What's wrong ? package com.codegym.games.snake; import com.codegym.engine.cell.*; class Game { public static final int HEIGHT = 15; public static final int WIDTH = 15; public static int setScreenSize(int HEIGHT, int WIDTH){ int local = WIDTH * HEIGHT; return local; } } public cla
9/16/20
587views
0comments
0
Daniel Jimenez
Level 2
Miami
Under discussion
Why isn't my program stopping?I've created a NumberTile program that is suppose to simulate a NumberTile game. I have created 5 Classes, and on one of them, I've created a play method that is suppose to run the game itself, making two Hands either place a NumberTile on a board or gain an extra tile to either hand. However, when
9/17/20
845views
0comments
0
BlueJavaBanana
Level 37
Question about the task Determining locking order
Java Multithreading, Level 7, Lesson 6
Under discussion
My Solution works, but I'm not sure it should have passed - did I get lucky? public static boolean isLockOrderNormal(final Solution solution, final Object o1, final Object o2) throws Exception { AtomicBoolean checkOrder = new AtomicBoolean(true); Thread t1 = new Thread() { @Override public void run() { synchronized
10/4/20
545views
0comments
0
Switch/Cypher
Level 25
Bexleyheath
Question about the task Splitting a file
Java Core, Level 8, Lesson 5
Under discussion
Eurgh.Obviously I'm just gonna rewrite it, but I was annoyed this doesn't pass..... public class Solution { static String firstFilename; static String secondFilename; static String thirdFilename; static ArrayList bytesFromFile = new ArrayList<>(); static ArrayList splitArrayOne
10/4/20
566views
1comment
0
Switch/Cypher
Level 25
Bexleyheath
Question about the task Encryption
Java Core, Level 8, Lesson 11
Under discussion
What? Why?This totally works, accepts that the "-e" encrypts the file, but despite the "-d" doing exactly the opposite, apparently that doesn't pass..... port java.util.List; public class Solution { static List bytes = new ArrayList<>(); public static void main(String[] args) { try
10/8/20
481views
1comment
0
Andrei
Level 26
Liverpool
Question about the task Number algorithms
Java Core, Level 10, Lesson 10
Under discussion
Failing at last condition cant pass last condition, but output exactly same as here was posted few times. starts from 1, not bigger than N, and all numbers correct. is there some hint?
10/8/20
573views
0comments
0
Onur Bal
Level 27
Istanbul
Question about the task Unzipping a file
Java Collections, Level 1, Lesson 10
Under discussion
None of the Validation Tests Pass Despite Functioning Properly on Local Machine Can anyone tell me what the issue might be here?
10/10/20
716views
0comments
0
sourav bamotra
Level 20
jammu
Question about the task ABCs
Java Core, Level 8, Lesson 11
Under discussion
what argument is practically passed in main method. And how is it passed?well, passed the task. FileInputStream inStream = new FileInputStream(args[0]); // we using first element of args array(parameter of main method) instead of fileName.
10/10/20
573views
0comments
0
Dinesh
Level 7
Delhi
Question about the task Implement the print method
Java Syntax, Level 2, Lesson 1
Under discussion
FileCopy Program Error please Explain the error and solution as well.
10/14/20
480views
0comments
0
Dyrits
Level 1
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Under discussion
What's wrong with my code?It seems correct to me. "Be sure that the lines list has the ADDED label with the required lines in the correct places."
10/15/20
554views
1comment
0
Liliane Top
Level 24
Amsterdam
Question about the task Overriding serialization in a thread
Java Core, Level 10, Lesson 10
Resolved
why oh why do I fail the test?It seems to be working although it does not return the string. why? I thought by reading the object back it should return that String as well. But it doesn't why?
1/18/21
726views
1comment
0
NOBODY
Level 5
Question about the task Crazy eights
Java Syntax, Level 2, Lesson 5
Under discussion
everyone too ez hahaha
4/8/20
1266views
1comment
0
Abdelrahman
Level 5
Amman
Question about the task Closest to 10
Java Syntax, Level 4, Lesson 4
Resolved
Help Can anyone give me info on why the first and last task aren't checked
1/12/21
563views
2comments
0
Andrei
Level 41
Question about the task UnsupportedFileName
Java Core, Level 8, Lesson 8
Under discussion
Here is my solution, let me know what you think or if you have questions! :) public class TxtInputStream extends FileInputStream { String fileName; public TxtInputStream(String fileName) throws Exception { super(fileName); // if filename is a correct string that leads to a txt file // behave like a regular FileInputStream and read
1/15/21
652views
2comments
0
Andrei
Level 41
Question about the task Extending AmigoOutputStream
Java Core, Level 8, Lesson 8
Under discussion
Why do I need to close the AmigoOutputStream and not the BufferedReader stream ? I have never seen this before? What happens to BufferedReader stream? public class QuestionFileOutputStream implements AmigoOutputStream { private AmigoOutputStream amigoOutputStream; public QuestionFileOutputStream (AmigoOutputStream amigoOutputStream) { this.amigoOutputStream = amigoOutputStream; } @Override public void flush() throws I
1/14/21
860views
9comments
0
Dinesh
Level 7
Delhi
Under discussion
Not getting the incremented value of catCount public class CatRegister{ private static int catCount = 0; public static void addNewCat(){ // write you code here CatRegister.catCount++; } public static void main(String[] args){ System.out.println(catCount); } }
1/18/21
419views
1comment
0
Dinesh
Level 7
Delhi
Under discussion
What happened to String Name Variable public class Cat { //What happened to this variable? private String name = "nameless cat"; public void setName(String name) { //write your code here this.name = name; } public static void main(String[] args) { Cat cat = new Cat(); cat.setName("Simba
1/17/21
568views
3comments
0
lukesky
Level 11
Zurich
Question about the task In decreasing order
Java Syntax, Level 7, Lesson 12
Under discussion
Can Someone help me unterstand what is wrong?thanks
11/12/20
746views
4comments
0
Adam Ondrejkovic
Level 5
Copenhagen
Question about the task Describing numbers
Java Syntax, Level 4, Lesson 7
Archived
My code works but verification shows an error if(number > 99 && number <= 999){ if(number % 2 == 0){ System.out.println("even three-digit number"); }else{ System.out.println("odd three-digit number"); } }else if (number > 9 && number <= 99){
11/9/20
603views
3comments
0
gery
Level 9
Islamabad
Question about the task Target locked!
Java Syntax, Level 4, Lesson 6
Under discussion
identify correction int a = Integer.parseInt(bufferedReader.readLine()); int b = Integer.parseInt(bufferedReader.readLine()); if(a>0 && b>0) { System.out.println("1"); } else if(a<0 && b>0) { System.out.p
9/14/18
1958views
4comments
0
Hendra
Level 8
Medan
Question about the task Target locked!
Java Syntax, Level 4, Lesson 6
Under discussion
please tell me my false package com.codegym.task.task04.task0425; /* Target locked!
12/7/19
1407views
4comments
0
Abdelrahman
Level 5
Amman
Question about the task Do we have a pair?
Java Syntax, Level 4, Lesson 4
Resolved
Help Hello coders! I have a question about why the 4th condition isn't checked, I did what it asked by doing this. else if (a == b && a == c && b==c){ System.out.println(a+" "+b+" "+c); } but it still would give me it back unchecked
1/14/21
1025views
4comments
0
Vitalina
Level 20
Question about the task Crossing the road blindly
Java Syntax, Level 4, Lesson 4
Under discussion
Please help me! I don't understand what to do at all...Just give me a hint how to resolve it...I saw that a lot of people was saying to use modulus..but i don't understand how to use it in this task... Thanks in advance:)
10/4/20
1049views
5comments
0
remote87
Level 18
Sofia
Question about the task Going national
Java Syntax, Level 8, Lesson 11
Under discussion
Why I can't pass the last check?I don't get it, why am I not passing the last check, I have made tons of tests and everything looks fine to me. Any advice?
1/17/21
647views
4comments
0
MoJo
Level 23
Cairns
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Under discussion
Tested and seemd right. Not much to be done wrong here anyways. But computer says no Test input: file1 con4tains l5ines 6with 7words 8separated 9by spaces. Write to file2 all the words that contain numbers, for example, a1 or abc3d. Separate the words with spaces. output to 2nd file: file1 con4tains l5ines 6with 7words 8separated 9by file2 a1 abc3d. am I missing something h
1/13/21
779views
11comments
0
Angeget
Level 22
Potsdam
Question about the task Stopwatch
Java Core, Level 6, Lesson 7
Resolved
Is there anything i am doing wrong ??? I AM CONFUSED AND NEE SOME HELP!!Is there anything i am doing wrong ??? I AM CONFUSED AND NEE SOME HELP!!
2/18/19
1852views
3comments
0
Hakim Balogun
Level 2
Abuja, FCT.
Question about the task Nerd break
Java Syntax, Level 0, Lesson 7
Under discussion
Nerd Break video isn't playing!My first Nerd Break video in Java Syntax, Level 0, Lesson 7 does not play. Once I click the 'open' button, all I get is just a blank black box! (Apparently this is the frame that should contain the video). Can anyone please help with solutions or ideas to make it work?
3/10/19
1244views
3comments
0
Jurij Thmsn
Level 29
Flensburg
Question about the task HashMap of cats
Java Syntax, Level 8, Lesson 3
Resolved
Don't understand output.I solved the task so i don't want to post the correct code. I stillt don't get the output. The output is like: Tiger - TIGER Missy - MISSY (..) Why isn't the output something like this: Missy - com.example.übung.Übung$Cat@681a9515 Tiger - com.example.übung.Übung$Cat@3af49f1c (...) I understand tha
1/15/21
778views
3comments
0
zub
Level 41
Milan
Question about the task Kind Emma and the summer holidays
Java Syntax, Level 8, Lesson 8
Resolved
Am I even close?Not having output makes it hard to tell if I'm getting close.
1/16/21
624views
2comments
0

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