Page 22 | CodeGym online Java course - Help

hidden #10529213
Level 19
Question about the task Calculating salaries
Java Core, Level 9, Lesson 11
Resolved
Last condition is not passing The output is right, but the last condition is not passing. Thank you!
10.06.2020
721views
2comments
3
Justin Smith
Level 41
Greenfield, USA
Question about the task Restaurant (part 16)
Java Multithreading, Level 9, Lesson 15
Resolved
Inconsistent number types used in different classes for money amounts In the Advertisement class, the amountsPerImpression is a long. This means no decimal places. In the VideosSelectedEventDataRow class, the amount field is also a long. So why then, in this task, when it gives you an example of what the printAdRevenue() method in the StatisticsManager should look li
12.07.2022
658views
3comments
0
larsintech
Level 15
Question about the task Flipping data
Java Syntax, Level 13, Lesson 3
Resolved
My console shows the right result but code is wrong?My console shows the right result but code is wrong?
29.07.2023
200views
4comments
0
Khamdam Yusupov
Level 47
Question about the task Binary converter
Java Syntax, Level 9, Lesson 2
Under discussion
Why it doesn't work?I did everything as it said in the conditions. But it doesn't work. Could someone help me please.
28.07.2023
219views
5comments
0
Satya Vath
Level 31
Vijayawada
Question about the task Everything ingenious is simple!
Java Multithreading, Level 1, Lesson 2
Under discussion
Can You Please Help Me //I can't Understand package com.codegym.task.task21.task2103; /* Everything ingenious is simple! */ public class Solution { public static boolean calculate(boolean a, boolean b, boolean c, boolean d) { return (a && b && c && !d) || (!a && c) || (!b &
23.04.2019
1858views
3comments
0
larsintech
Level 15
Question about the task Who here is a descendant?
Java Syntax, Level 11, Lesson 3
Resolved
Why do I get this error message?In the main method, 3 objects (an instance of the HybridCar, GasCar and ElectricCar classes) should be created. I have created three objects...
26.07.2023
223views
3comments
0
hidden #11364598
Level 5
Question about the task Second smallest number entered
Java Syntax, Level 4, Lesson 2
Resolved
Why secondMin showing the first int entered? Hey I'm a bit lost. I thought my code would do the following: If a new low encountered then set secondMin as min then set min to X the new low. In reality tho my secondMin only stores the first value entered. Any hints?
26.07.2023
220views
2comments
0
larsintech
Level 15
Question about the task Two iPhones
Java Syntax, Level 11, Lesson 5
Under discussion
What's wrong with my solution?The equals method must return true for two equal IPhone objects and false for different ones.
26.07.2023
231views
1comment
0
Wojtek
Level 23
Solec-Zdroj
Question about the task Externalizable Person
Java Core, Level 10, Lesson 7
Under discussion
what is wrong in my code?need help
10.04.2019
1669views
11comments
0
Amantai
Level 47
Shymkent
Question about the task Reading and writing to a file: CodeGym
Java Core, Level 10, Lesson 2
Resolved
Needs come help Console output: true [First name: Mike Last name: Smith Birth date: 1989 01 27 Sex: male Country: United States, First name: Liliane Last name: Top Birth date: 1991 03 31 Sex: female Country: United Kingdom]
23.07.2023
352views
3comments
0
Megz
Level 3
Johannesburg
Question about the task Price of apples
Java Syntax, Level 3, Lesson 4
Under discussion
I dont understand i got it to run apple price at 100, 150 and 200 and neither of then complete the last requirement i dont get it. i added the lines in the solution to show how i did it
29.09.2022
793views
2comments
0
TatMik
Level 22
Stockholm
Question about the task Remove duplicate strings
Java Syntax, Level 5, Lesson 3
Resolved
What should I fix?The both alternatives don't pass the test but work correctly for me...
23.07.2023
383views
4comments
0
DEEMA
Level 3
Under discussion
How can I chang my name ?Hi guys Can someone help me
23.07.2023
193views
1comment
0
matemate123
Level 50
Kraków
Question about the task Restaurant (part 10)
Java Multithreading, Level 9, Lesson 15
Under discussion
Scary 10 part I need help here definitely! Guys, tell me how far away I am from the solution, and give me some advice because I don't know exactly what the validator wants here. There are so many places to make errors here, and I don't want to bang head against the wall.
20.07.2023
526views
3comments
0
DEEMA
Level 3
Under discussion
I need help Hi guys Can any one help me ,because I don’t have any dark matter and I do all my tasks I don’t know what should I do to get dark matter So if someone can help me ,please answer me Thank you 🙏
22.07.2023
185views
2comments
0
Gowtham
Level 15
Bangalore
Resolved
How to open the Java Core tasks on IntelliJ?I just finished all of the Syntax tasks. Please tell me how to open the Core quests on IntelliJ Idea.
19.12.2019
1202views
4comments
0
Amantai
Level 47
Shymkent
Question about the task Introducing tags
Java Core, Level 9, Lesson 11
Resolved
The program ran too long and was closed!File contents: Info about Leela Leela Turanga Supergirl Output: Leela Turanga Leela Turanga Super girl Process finished with exit code 0
19.07.2023
607views
5comments
0
Amantai
Level 47
Shymkent
Question about the task Replacing numbers
Java Core, Level 9, Lesson 11
Resolved
Please tell me where is the mistake?Input file: This costs 1 dollar, but this is 12. The variable is called file1. 110 is a number. Football is played by 22 people, but 11 Germans always win. Console output: This costs one dollar, but this is twelve. The variable is called file1. 110 is a number. Football is played by 22 people, but
21.07.2023
190views
2comments
0
Amantai
Level 47
Shymkent
Question about the task Words with numbers
Java Core, Level 9, Lesson 11
Resolved
Where is the mistake?mentor recommendation: Be sure that the program writes all the words containing numbers from the first file to the second file.
20.07.2023
208views
2comments
0
Boris
Level 1
New
Can I retake the placement test?I took some courses on Java and now I wonder if I can retake the placement test here so it reflects my level better without going through the tasks manually
20.07.2023
170views
0comments
0
Rebecca Zee
Level 10
New York
Question about the task Duplicating words
Java Syntax, Level 7, Lesson 9
Under discussion
Error occurs when running the program How do I resolve this error when I run my program? I can pinpoint that it has to do with adding a string to the ArrayList in the doubleValues(ArrayList) method. When I use the loop to print out the list it runs just fine. java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkFo
18.07.2023
649views
7comments
0
Gummy C
Level 11
United States of America
Question about the task Two iPhones
Java Syntax, Level 10, Lesson 4
Under discussion
Hello again! I am having trouble understanding the issue with my code again. The first if statement compares whether or not the two objects are equal. The second if statement compares whether an object has null. The third if statement compares the two objects to see if they have identical elements. package en.codegym.task.pro.task10.task1010; import java.util.Objects; /* Two iPhones */ public class Iphone { private String model; private String color; private int price; public Iphone(String model, String color, int price) { this.model = model; this.color = c
19.07.2023
308views
3comments
0
Gummy C
Level 11
United States of America
Question about the task Serial entrepreneur
Java Syntax, Level 10, Lesson 2
Under discussion
Please help, I do not understand what the problem is. Why do we "have" to use a void method when a static method could be used as well? It returns the same thing package en.codegym.task.pro.task10.task1005; /* Serial entrepreneur */ public class Building { private String type; public static String initialize(String type){ return type; } public static void main(String[] args) { Building building = new Building();
16.07.2023
527views
5comments
0
Nisha Kumari
Level 4
Question about the task Three numbers
Java Syntax, Level 3, Lesson 2
Under discussion
what is the error in my code ?? my code is showing error why ??
18.07.2023
239views
2comments
0
Amantai
Level 47
Shymkent
Question about the task Tracking changes
Java Core, Level 9, Lesson 11
Resolved
What's my mistake?mentor recommendation: Be sure that the lines list has the ADDED label with the required lines in the correct places. I tested the task according to the conditions. Here are the results: file1: file2: results: line1 line1 SAME line1 line2 line3
17.07.2023
254views
2comments
0
Amantai
Level 47
Shymkent
Question about the task Calculating salaries
Java Core, Level 9, Lesson 11
Under discussion
Why isn't a decision made?Input: Output: Brown 1.44 Baxter 4.1 Baxter 2.75 Peterson 5.1 Peterson 2 Smith 6.0 Brown 3.14 Brown 6.6 Smith 6 Baxter 1
18.07.2023
208views
1comment
0
Abegail Caducio
Level 2
Under discussion
math random can you create me a math random problem
16.07.2023
172views
1comment
0
J
Level 41
Wilson
Question about the task Restaurant (part 4)
Java Multithreading, Level 9, Lesson 15
Under discussion
Why is this not validating and giving an error (the only one) for my update method in the Waiter class? @Override public void update(Observable o, Object arg) { this.order = (Order) arg; System.out.println(this + " was prepared by " + o); }
12.08.2022
497views
2comments
0
Justin Smith
Level 41
Greenfield, USA
Question about the task Distributing items into baskets with their own lock
Java Multithreading, Level 6, Lesson 8
Under discussion
So much in this task I don't understand 1. What's the Node class? I've tried googling this but the explanations are all very technical and refer to other things I also don't understand. 2. What's up with the for loop? I've never seen the .next in a for loop like this. 3. What is the hash method accomplishing? It seems it would return a se
09.02.2022
1084views
7comments
1
Amantai
Level 47
Shymkent
Question about the task Reversing a file
Java Core, Level 8, Lesson 5
Resolved
Where is the mistake?I used the required input/output streams and closed them immediately after reading/writing.
14.07.2023
198views
2comments
0

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