Page 31 | CodeGym online Java course - Help

Jill L
Level 10
China
Question about the task Positive and negative numbers
Java Syntax, Level 3, Lesson 10
Under discussion
I don't understand what's wrong. Why" System.out.println "can't work? int poscount=0; int negcount=0; for(int i=0;i<3;i++){ BufferedReader reader=new BufferedReader(new InputStreamReader(System.in)); if(Integer.parseInt(reader.readLine())>0) poscount++; else if(Integer.parseInt(reader.readLine())<0) negcount++; }
22.02.2023
462views
7comments
0
ImDevin
Level 15
Old Town
Question about the task Fixing bugs
Java Core, Level 4, Lesson 8
Under discussion
interface or abstract class?here, Orca class extends SeaCreture(abstract class with an abstract method) & implements CanSwim(has one method). The solution shows one method that is being overridden (@Override - CanSwim). It looks like it's the abstract method that is getting implemented, which it should. However, shouldn
10.06.2021
1022views
5comments
0
Hafsah Jilanee
Level 10
Karachi
Question about the task Positive and negative numbers
Java Syntax, Level 4, Lesson 7
Resolved
Please help please help i'm getting all the correct results but it won't pass testing
02.11.2019
1231views
2comments
0
Reyaz Ahmad Bhat
Level 4
Anantnag Jammu And Kashmir
Question about the task High accuracy
Java Syntax, Level 3, Lesson 7
New
Solution Scanner sc = new Scanner(System.in); double a = sc.nextDouble(); double b = sc. nextDouble(); if(Math.abs(b - a) < 0.000001 ){ System.out.println("The numbers are equal"); }else{ //write your code here System.out.println("The
20.02.2023
365views
0comments
0
Reyaz Ahmad Bhat
Level 4
Anantnag Jammu And Kashmir
Question about the task Triangle
Java Syntax, Level 3, Lesson 6
Under discussion
Solution if((a+b)<=c || (b+c)<=a || (a+c)<=b){ System.out.println(TRIANGLE_DOES_NOT_EXIST); }else{ System.out.println(TRIANGLE_EXISTS); }
19.02.2023
350views
1comment
0
hendra gunawan
Level 9
tebing tinggi
Question about the task Binary to hexadecimal converter
Java Syntax, Level 9, Lesson 2
Under discussion
please help ...I'm stuck with the first and second requirement task....for binarynumber input ,I tried to use null as input....the result is null pointer exception....how to solve this task...some advice please
20.02.2023
260views
2comments
0
Kiran Kumar Alisam
Level 8
Erie
Question about the task Rule of the triangle
Java Syntax, Level 4, Lesson 4
Under discussion
triangle isnt possible not getting executed i have added the code when triangle is possible and added else with the conditions mentioned when triangle isnt possible .. how to get the text printed for triangle isnt possible
31.03.2022
658views
2comments
0
Reyaz Ahmad Bhat
Level 4
Anantnag Jammu And Kashmir
Question about the task Three numbers
Java Syntax, Level 3, Lesson 5
Under discussion
Solution public class Solution { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int number1 = scanner.nextInt(); int number2 = scanner.nextInt(); int number3 = scanner.nextInt(); if (number1 == number2) { if (number1
19.02.2023
389views
1comment
0
Reyaz Ahmad Bhat
Level 4
Anantnag Jammu And Kashmir
Question about the task Quadrants
Java Syntax, Level 3, Lesson 6
New
Solution Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); if(a > 0 && b > 0){ System.out.println("1"); } if(a < 0 && b > 0){ System.out.println("2");
19.02.2023
280views
0comments
0
Reyaz Ahmad Bhat
Level 4
Anantnag Jammu And Kashmir
Question about the task To work or not to work? That is the question
Java Syntax, Level 3, Lesson 6
New
Solution Scanner sc = new Scanner(System.in); int age = sc.nextInt(); if(age < 20 || age > 60){ System.out.println("You don't have to work"); }
19.02.2023
249views
0comments
0
NsoundarMCA
Level 18
Coimbatore
Resolved
Playing with MAX Value int x = Integer.MAX_VALUE; long y = Long.MAX_VALUE; System.out.println(x); System.out.println(y); System.out.println(x*2); // result -2 System.out.println(y*2); // result -2 Why I'm getting -2 as result when multiplying maximum value by 2, also I'm not evening
19.02.2023
236views
2comments
0
EugeneEmory
Level 8
San Antonio
Question about the task Minesweeper (Part 1/16)
Games, Level 0, Lesson 0
Under discussion
Help?I believe I did exactly what the instruction laid out but I'm getting and unknown error?
02.03.2021
756views
1comment
0
NsoundarMCA
Level 18
Coimbatore
Under discussion
Index of Array Why don't array starts with 1 ? Why java creators designed to starts with 0 rather than 1
19.02.2023
255views
1comment
0
Opeyemi Olaleye
Level 5
Question about the task 18+
Java Syntax, Level 4, Lesson 6
Under discussion
Coding Structure I read the supplemental information on the scanner function and took a try at it. It seems to work but I was curious why the solution still uses things like BufferedReader when scanner is shorter. Does this have to do with proper coding structure or something? Currently the code doesn't meet the tas
14.02.2021
472views
2comments
0
Filip
Level 4
Karlovac
Question about the task Repetition is the mother of all learning
Java Syntax, Level 2, Lesson 8
Resolved
Please I need your support with this task!Please I need your support with this task!
12.11.2018
2039views
7comments
0
Mahendra Reddy
Level 2
CodeGym University in India
Question about the task Uh... Happy New Year!
Java Syntax, Level 1, Lesson 6
Under discussion
java how to coding
08.11.2022
414views
2comments
0
Kasia
Level 22
Zabrze
Question about the task Minesweeper (Part 2/16)
Games, Level 0, Lesson 0
Resolved
import com.codegym.engine.cell.*; doesn't want to import in IntelJi. Hello, if any of you found it that import com.codegym.engine.cell.*; doesn't want to import in IntelJi there is an easy solution(works for my anyway). Close intellij and remove manually folder where you have your codegym code. After restarting Intellij it will ask you to choose a folder to downloa
04.11.2020
1216views
4comments
2
hidden #10759343
Level 2
Question about the task Pay raise
Java Syntax, Level 2, Lesson 2
Under discussion
Need help! Please This code I created, but still have issue. Please, help! package com.codegym.task.task02.task0205; /* Pay raise */ public class Solution { public static void main(String[] args) { hackSalary(7000); } public static void hackSalary(int a) { int b = 1000 + 7000;
24.06.2021
695views
5comments
0
ilian44
Level 30
Veliko Turnovo
Question about the task Overriding serialization in a thread
Java Core, Level 10, Lesson 10
Resolved
Strange It seems all conditions are met but still cant pass the test ?
14.01.2020
1288views
5comments
0
Andrei
Level 41
Question about the task No mistakes
Java Core, Level 4, Lesson 4
Resolved
Huh?Hello, according to the computation done my the MyBrain Quantum Computer somewhere in Europe, the following result should be displayed when using the printClasses method: Jerry; - for obj Mouse; - for mouse; obj being downcasted to mouse GrayMouse; - for grayMouse as it was downcasted to GrayMouse
01.12.2020
629views
9comments
4
Justin Smith
Level 41
Greenfield, USA
Question about the task Log parser (part 7)
Java Collections, Level 7, Lesson 15
New
Possible date parameter conflict Consider the following query, which is viable given how we have built the project so far: "get ip from date = \"1.1.2012 12:12:12\" and date between \"11.12.2013 0:00:00\" and \"03.01.2014 23:59:59\"" It is not clear what should happen given a query like this. Should it ignore the date = ? Or shoul
15.02.2023
234views
0comments
0
Carbune George
Level 22
Iasi
Question about the task Find the bugs
Java Core, Level 10, Lesson 10
Resolved
Need help I can't figure out what's the problem. Edit: Problem solved.
22.06.2019
2151views
8comments
0
Bupal Junior
Level 5
Bristol
Question about the task Describing numbers
Java Syntax, Level 4, Lesson 7
Archived
Please Help out . What am i doing wrong, I cant satisfy the last req?package com.codegym.task.task04.task0427; /* Describing numbers */ import java.util.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here Scanner input = new Scanner(System.in); int n = input.nextInt(); /* "
26.05.2019
1429views
5comments
0
Павел Артеменко
Level 41
Krasnodar
Question about the task Log parser (part 1)
Java Collections, Level 7, Lesson 15
Under discussion
Bugged!Validation of Condition 6 is bugged. Or description of condition is not correct.
16.06.2019
1271views
4comments
0
Andrei
Level 41
Question about the task Currencies
Java Core, Level 4, Lesson 8
Under discussion
Why do I also have to create the abstract constructor to be able to extend an abstract class?In USD, Euro and Ruble class.
03.12.2020
642views
20comments
1
Andrei
Level 41
Question about the task Log parser (part 1)
Java Collections, Level 7, Lesson 15
Under discussion
This is probably one of the stupidest tasks so far... such little information... It's ridiculous.1.2.2. The getUniqueIPs() method must return a set of all unique IP address. Store each IP address in a String. - cool from where? I had a look at the solution, the mentor creates a new class, new methods, in all about 230 lines of code. So far I have 39. How does CodeGym expect of me to come up w
27.07.2021
419views
1comment
0
Tomek
Level 11
Gdansk
Question about the task Logging stack traces
Java Syntax, Level 9, Lesson 2
Under discussion
What's wrong with my code? (Same output)Hi, what's wrong with my solution? Output seems to be the same. Kind Regards
13.02.2023
220views
1comment
0
Profj
Level 20
Lagos
Question about the task Restaurant
Java Core, Level 7, Lesson 10
Under discussion
Help a friend please.What can I do on this task? I've checked and checked and checked.
26.06.2019
1634views
4comments
0
ugabuga
Level 36
Question about the task Restaurant (part 21)
Java Multithreading, Level 9, Lesson 15
New
Second Requirement will not pass, even though my code is identical with solution...!! package com.codegym.task.task27.task2712; import com.codegym.task.task27.task2712.kitchen.Cook; import com.codegym.task.task27.task2712.kitchen.Order; import com.codegym.task.task27.task2712.statistics.StatisticsManager; import java.util.Observable; import java.util.Observer; import java.util.Set
12.02.2023
377views
0comments
0
Richard Han
Level 4
Lipa
Question about the task Closest to 10
Java Syntax, Level 4, Lesson 4
Under discussion
Help! I can't understand this. This lesson did not explain how to do this exactly, and it's expecting us to answer this ;-;I'm not giving hate to codegym, I just wish they teached us how to do this before they gave us the tasks. ok ok now. I don't understand this. Please help. And ok, I'll say it, I copied the solution below from another help section. I understand the lesson, but that doesn't mean I understand the tasks
10.09.2018
2057views
6comments
4

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