Page 99 | CodeGym online Java course - Help

Nikash Sahu
Level 3
Bangalore
Question about the task Printing strings
Java Syntax, Level 3, Lesson 5
Under discussion
can any1 find out where i have made mistake??public class Solution { public static void main(String[] args) { writeToConsole("Hello, World!"); } public static void writeToConsole(String s) { //write your code here String s1 ="printing:" +s; System.out.print(s1); } }
05.11.2018
1787views
4comments
0
Andrei
Level 41
Question about the task CRUD 2
Java Core, Level 7, Lesson 10
Resolved
Difference between 2 block of code Hello, I don't understand what is the difference between this block of code: case "-i": synchronized (allPeople) { for (int i = 0; i < args.length-1; i++) { person = allPeople.get(i); String newFormatBirthdate =
08.01.2021
442views
4comments
0
Aryan Yadav
Level 4
bikaner
Question about the task Fill a pool with water
Java Syntax, Level 3, Lesson 5
Under discussion
help how to solve his problem
03.09.2018
1867views
4comments
0
Barsha
Level 4
Eluru
Question about the task Product of 10 numbers
Java Syntax, Level 3, Lesson 4
Under discussion
Failing the last task condition: The number does not match the task conditions public class Solution { public static void main(String[] args) { //write your code here int z=0; for(int i=0;i<=10;i++) { z++; z*=i; } System.out.println(z); } }
14.07.2020
587views
4comments
0
Liliane Top
Level 24
Amsterdam
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
Why is this wrong?The feedback I get from. my mentor doesn't make sense...
10.01.2021
599views
8comments
0
Manimegalai
Level 3
Kanchipuram
Question about the task Task with percentages
Java Syntax, Level 3, Lesson 3
Under discussion
Whats wrong in my code???public class Solution { public static double addTenPercent(int i) { double ii=i+0.9; return ii; } public static void main(String[] args) { System.out.println(addTenPercent(9)); } }
13.09.2018
2111views
5comments
0
Sawankumar
Level 1
Question about the task Task with percentages
Java Syntax, Level 3, Lesson 3
Resolved
please help me to resolve this problem..I have run this program in run tab.. same o/p is generated from my program.. till error it is displaying Why...??
02.08.2018
2586views
7comments
0
Shahanshah Alam
Level 9
Mohali
Question about the task Setting the number of cats
Java Syntax, Level 4, Lesson 2
Resolved
help please i dont understand how resolve last condition
15.09.2018
3628views
6comments
0
remote87
Level 18
Sofia
Question about the task Longest sequence
Java Syntax, Level 8, Lesson 6
Resolved
Why is this not passing the last condition???I tried so many times with different inputs, every time it's right, but I can't pass the last condition. Any advice? I tried a different approach :)
10.01.2021
587views
2comments
0
Liliane Top
Level 24
Amsterdam
Question about the task Counting words
Java Core, Level 9, Lesson 5
Resolved
What is the difference in reader.readLine() and reader.read() It seems that when you use readLine() you do not get the same as with read(). How is this possible? For example BufferedReader reader2 = new BufferedReader(new FileReader(fileName)); String line = reader2.readLine(); or BufferedReader reader2 = new BufferedReader(new FileReader(fileName)); StringB
09.01.2021
506views
10comments
0
Oliver Heintz
Level 18
Mustang
Question about the task OOP: Books
Java Core, Level 5, Lesson 2
Under discussion
Output is correct, failing 4 requirements still I struggled to get to this point, and it felt so good to have done it without needing help, but now, when it looks like everything is being done correctly, I can't figure it out.
09.01.2021
477views
5comments
0
Liliane Top
Level 24
Amsterdam
Question about the task Counting words
Java Core, Level 9, Lesson 5
Resolved
What is wrong with my code?it reads words separated by punctuation marks. Hence the regex \\p{Punct} should do the trick. But I fail the test.
09.01.2021
498views
6comments
0
Cristian
Level 13
Ploiesti
Question about the task Vowels and consonants
Java Syntax, Level 9, Lesson 11
Under discussion
I can not finish this task. Please, help me! Thank you so much!package com.codegym.task.task09.task0923; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; /* Vowels and consonants */ public class Solution { //public static char[] vowels = new char[]{'a', 'e', 'i', 'o', 'u'}; public
09.01.2021
467views
1comment
0
Liliane Top
Level 24
Amsterdam
Question about the task Even characters
Java Core, Level 9, Lesson 5
Resolved
I do not understand how the FileReader and Filewriter return an int but how to read back the characters? I'm trying to read text from a file, copy it to another file and read it back. All I get is strange looking characters. I do not understand how the FileReader and Writer work. Can someone explain this to me please? In the books it says that FileReader and FileWriter reads and write characters but w
09.01.2021
562views
6comments
0
Sindhura
Level 15
Delhi
Question about the task Visitors
Java Core, Level 2, Lesson 12
Under discussion
using instanceof and it was correct for all except lion and Tiger.Please help package com.codegym.task.task12.task1225; /* Visitors */ public class Solution { public static void main(String[] args) { System.out.println(getObjectType(new Cat())); System.out.println(getObjectType(new Tiger())); System.out.println(getObjectType(new Lion()));
11.10.2018
2683views
12comments
0
LennyMan
Level 25
Lucca
Resolved
The main method's first parameter is In the last few task i seen often this requirement: The main method's first parameter is ..... I seen in some solution that corrispond at args[0], that should be the same array args that we can find in the main signature. Someone can please explain me how works with that and why i should use it
09.01.2021
448views
2comments
0
Dmitri
Level 22
Seversk
Question about the task Transactionality
Java Core, Level 7, Lesson 10
Resolved
The code is quite obvious and works ok.The code is quite obvious and works ok. Why it does not pass?
09.01.2021
406views
2comments
0
Liliane Top
Level 24
Amsterdam
Question about the task Adapting multiple interfaces
Java Core, Level 9, Lesson 3
Resolved
What is wrong?I might not understand the requirements correctly but I understand that the phone number must be returned in the following format: // For example: +1(099)123-45-67 What am I missing?
09.01.2021
657views
2comments
0
June Sung Park
Level 41
Yangp'yong
Question about the task Again, POST, not GET
Java Collections, Level 10, Lesson 4
Under discussion
Can't pass the third condition Please help.
10.09.2020
528views
1comment
2
crispr_cast9
Level 9
Saint Petersburg
Question about the task Plan to conquer the world
Java Syntax, Level 3, Lesson 8
Under discussion
Hello,everyone. Can somebody help me?🦝 com/codegym/task/task03/task0318/Solution.java:40: error: cannot find symbol public static String getString()throws MyException{ ^ symbol: class MyException location: class com.codegym.task.task03.task0318.Solution.InString
08.01.2021
798views
5comments
0
Gellert Varga
Level 23
Szekesfehervar
Resolved
Question about inherited private variable public static class DomesticAnimal { private int weight; private int age; public int getWeight() { return this.weight; } } public static class Chicken extends DomesticAnimal { public int wings; public void
08.01.2021
680views
4comments
0
Nandeesh S Bagewadi
Level 2
Bangalore
Question about the task Part of a calculator
Java Syntax, Level 2, Lesson 2
Resolved
Answer plz Answer plz
20.08.2018
2802views
12comments
1
LennyMan
Level 25
Lucca
Question about the task Counting words
Java Core, Level 9, Lesson 5
Resolved
The output its correct but dont pass the validation The output its correct but dont pass the validation This is my .txt file where i tested it: ____________________________________________________________________ world Text in file world aaaa bbb world world ciao.world ______________________________________________________________________ The ou
08.01.2021
488views
2comments
0
Kent Hervey
Level 19
Question about the task Sorting even numbers from a file
Java Core, Level 3, Lesson 11
Under discussion
Is Java 8 Streams allowed?Just starting. Although a challenge for me, I want to consider using Java 8 feature such as streams. I wonder if that is allowed??
07.01.2021
329views
1comment
0
Jake Jacobs
Level 2
Almaty
Under discussion
Where I get wrong? package readability; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String word = sc.nextLine(); String[] nums = word.split(" "); //System.out.println(nums.length); // tot
04.06.2020
470views
1comment
0
Mahmud Foysal
Level 1
Dhaka
Under discussion
Language Settings Can I change my language settings again? If yes, then how? please explain
05.06.2020
567views
0comments
0
Isaque Silva
Level 3
São Paulo
Under discussion
What is bug ?Hi I click in the "Verify" after resolution a at task don't working.
07.06.2020
481views
0comments
0
Edddieg
Level 15
Providence
Under discussion
please help Write code that calculates how many seconds have passed since 3:00 PM when the clock says it's 3:30 PM. Display the result. Requirements: • The program should output text. • The displayed text should be a positive integer. • The displayed number must be a multiple of 60. • The displayed number must
07.06.2020
609views
0comments
0
Surya
Level 33
Newark
Question about the task Introducing tags
Java Core, Level 9, Lesson 11
Under discussion
Could some one help me with this.Works perfectly in my local machine. But fails validation here. Not sure why.
07.06.2020
538views
0comments
0
Jonas
Level 41
Vilnius
Question about the task Again, POST, not GET
Java Collections, Level 10, Lesson 4
Under discussion
Please help How to get connection's outputStream and why it says that I don't use setEntity method? (line 36)
08.06.2020
540views
0comments
0

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