Page 321 | CodeGym online Java course - Help

Cinthya Cabanzo
Level 22
Bogota
Question about the task Task about algorithms
Java Syntax, Level 9, Lesson 11
Resolved
Runs ok in IntelijIDEA but not in the Web Page Hi Pals, Here said that "java.lang.NullPointerException: Solution.java, method main, line: 18" An attempt was made to access an uninitialized object (Null). But in the IDEA return : Apple 22 Bob 3 Cherry 1 0 Watermelon Process finished with exit code 0 Please help me.
5/27/19
1960views
7comments
0
edis emin
Level 7
London
Question about the task Positive and negative numbers
Java Syntax, Level 4, Lesson 4
Archived
Why does this code work in Eclipse IDE but not on CodeGym IDE?import java.io.*; public class Solution { public static void main(String[] args) throws Exception { BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in)); String num = buffer.readLine(); int number = Integer.parseInt(num); if(number>0)
4/22/19
1635views
4comments
0
Henk
Level 19
Pretoria
Question about the task Horse racing
Java Core, Level 6, Lesson 5
Archived
code looks correct as per requirement, but I'm obviously missing something small ?cannot pass 3rd requirement.... Also, the output is not coherent/consistent: it displays some of the horse more than once, but I think it's because the while loop driving it, doesn't constitute the best way to start the whole thread ?
5/24/19
2008views
2comments
0
romeo
Level 5
Paramaribo
Question about the task Number of days in the year
Java Syntax, Level 4, Lesson 4
Under discussion
Can anyone help me spot the error? condition 3 not met I entered 1988 and got days = 365 which is correct.
5/28/19
1796views
1comment
0
AndroidMalaya
Level 4
Shah Alam
Under discussion
Problem when doing activity using mobile phone When enable desktop version, it will get zoom in and cannot zoom out. When in mobile version, the word will always be replaced repeating to only 1 char .
5/27/19
1362views
2comments
0
Manoj Chander
Level 11
Singapore
Question about the task Vowels and consonants
Java Syntax, Level 9, Lesson 11
Under discussion
Verification Error The output is correct . But i'm getting verification error . Please help to rectify . Thanks .
5/28/19
1231views
2comments
0
satish
Level 15
kadapa
Question about the task R or L
Java Syntax, Level 7, Lesson 9
Under discussion
what was the mistake is that increment and decrement operations of for loop correct
5/27/19
1480views
3comments
0
Rusu Adelina
Level 17
Iasi
Question about the task 1 to 10
Java Syntax, Level 4, Lesson 10
Resolved
help! i need a hint int a = 1; while (a<10){ System.out.println(a); a++; } System.out.println("Loop finished");
3/25/19
1701views
2comments
1
Naman
Level 2
Thana Bhawan
Question about the task Bugs and features
Java Syntax, Level 0, Lesson 8
Resolved
Its not a bug it's a feature System.out.println("It's not a bug - it's a feature.")
4/21/19
1697views
2comments
0
shabarish kumar
Level 20
Hyderabad
Under discussion
Can anyone help me to find the mistake. Please help me, this is failing at package com.codegym.task.task06.task0621; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* Cat relations */ public class Solution { private static int i= 0; private static int j = 0; public static void main(String[] args) thr
5/25/19
1462views
1comment
0
Pioniio
Level 22
Schaffhausen
Resolved
task0905: Why is number of methods 3 Hi task0905 In the blue depths of the stack trace…: My solution works fine. But i don't understand why the number of methods in the stack trace is 3 (variable int deep). We have main method (method 1) which calls getStackTraceDepth method (method 2), hence two methods. Why isn't the answer 2 then? t
5/27/19
1491views
2comments
0
Jacob Warren
Level 8
Tampa
Under discussion
How to run a program in IntelliJ IDEA?I am trying to test my program using the run command in IntelliJ but it is blurred out. The only way that I have found is going up to run tab on mac and doing a special run since the solution.java is in a different location is this the only way to actually run the program?
5/25/19
1535views
1comment
0
Naman
Level 2
Thana Bhawan
Under discussion
Text should consist of 9 lines I have created blank lines instead it shows text should consist of nine lines
4/29/19
1514views
1comment
0
Evghenii
Level 13
Chisinau
Question about the task Positive and negative numbers
Java Syntax, Level 4, Lesson 7
Resolved
What yhe problem? Can somebody to explayn me?I dont see what mistake I do?
4/27/19
2151views
8comments
1
Girish
Level 5
Chicago
Under discussion
How to unlock the lessons How to unlock the lessons
5/27/19
1677views
1comment
0
Mohamed Nagy
Level 7
Alexandria
Question about the task Describing numbers
Java Syntax, Level 4, Lesson 7
Archived
whats the problem guy please help the last condition fails why??
5/17/19
1573views
3comments
1
dpp
Level 8
Colombo
Question about the task Describing numbers
Java Syntax, Level 4, Lesson 7
Archived
Runs perfectly but doesn't pass the test When I run it all the conditions are satisfied but the verification says that the 1-999 thing is not satisfied
4/26/19
1479views
2comments
1
Steven Mcilhone
Level 17
Belfast
Question about the task HashMap of Objects
Java Syntax, Level 8, Lesson 3
Resolved
unsure what to do see code
5/7/19
1808views
7comments
0
Chiritoiu Cristian
Level 4
Bucharest
Question about the task What's the cat's name?
Java Syntax, Level 4, Lesson 2
Under discussion
Help the cat get a name using the setName method I need more tips for doing this task. Some code would be great!
1/27/19
3535views
6comments
0
harshshah
Level 9
Gandhinagar
Question about the task Deep and pure love
Java Syntax, Level 3, Lesson 8
Under discussion
Dispaly dosen't match\Didn't able to find the mistake in white space...!
4/8/19
1667views
7comments
0
Jyothi
Level 20
Question about the task Working with dates
Java Syntax, Level 8, Lesson 11
Under discussion
verify failing. please advise Screen output from the program (System.out) 120 false
12/30/18
1642views
2comments
0
WatWat
Level 9
Vancouver
Question about the task Part of a calculator
Java Syntax, Level 2, Lesson 2
Under discussion
Separate Methods for sum and product not working I thought I would be able to create to separate methods to calculate a sum and a product. public class Solution { public static void main(String[] args) { int c = 5; int d = 7; sum(c, d); product(c, d); } public sum(a, b){ System.out.print(a + b)
10/2/18
1611views
6comments
0
Ahmed
Level 23
Amsterdam
Question about the task Playing Javarella
Java Syntax, Level 7, Lesson 9
Resolved
Can't understand the validator any more?!Why I got this error/ im making a list with 20 numbers? What is wrong?
5/23/19
1878views
6comments
0
John Michael Montuya
Level 10
Cebu City
Question about the task Even and odd digits
Java Syntax, Level 6, Lesson 5
Resolved
Question about static int variables on the code.So, the last task (Odd or Even). I don't see the following int variables initialized to zero anywhere, but the program somehow works just fine without errors: public static int even; public static int odd; What am I missing? TIA!
5/25/19
1935views
8comments
0
Payal Agarwal
Level 17
Bucharest
Question about the task Sum of the digits of a three-digit number
Java Syntax, Level 3, Lesson 12
Under discussion
My querry Why you are dividing numbers by 10 and 100??
5/24/19
1769views
2comments
0
Dupi
Level 22
Guangzhou
Question about the task Writing to a file from the console
Java Core, Level 3, Lesson 11
Under discussion
i was defeated!!!!!Somebody Help!?
5/27/19
1407views
2comments
0
vengadesh
Level 5
chennai
Question about the task Three numbers
Java Syntax, Level 4, Lesson 6
Under discussion
what the error occur in my code pls tell me???package com.codegym.task.task04.task0424; /* Three numbers */ import java.io.*; import java.util.Scanner; public class Solution { public static void main(String[] args) throws Exception { BufferedReader index =new BufferedReader (new InputStreamReader(System.in)); int n1=Integer.parseI
5/20/19
1707views
11comments
0
Nithin
Level 35
Hyderabad
Question about the task Cat code won't compile
Java Syntax, Level 7, Lesson 12
Resolved
what is wrong with this code Please help me solve this
5/24/19
1545views
4comments
0
dave
Level 14
Lancaster
Question about the task Animal set
Java Syntax, Level 8, Lesson 11
Under discussion
Can there issue with using removeAll()? public static void removeCats(Set pets, Set cats) { pets.removeAll(cats); }
4/10/19
1565views
2comments
0
Monica Nicoleta
Level 7
Arad
Question about the task Maximum of four numbers
Java Syntax, Level 4, Lesson 6
Resolved
I cannot see the error. Please help!Can anyone help me understand where is the mistake, please?
2/4/19
1594views
3comments
0

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